<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c91cc-1ba2-71b1-a141-2e80a4b3e73b,g:b0ede7f1-efd1-4878-a215-9b2e15ebcef5-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:cybn="http://cybin.com/20260331" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types1="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://cybin.com/20260331">
  <xs:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2022-03-31" schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/currency/2025" schemaLocation="https://xbrl.sec.gov/currency/2025/currency-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xs:import namespace="https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full" schemaLocation="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cybn-20260331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cybn-20260331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cybn-20260331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cybn-20260331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="COVER" roleURI="http://cybin.com/role/COVER">
        <link:definition>0000001 - Document - COVER</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AUDITINFORMATION" roleURI="http://cybin.com/role/AUDITINFORMATION">
        <link:definition>0000002 - Document - AUDIT INFORMATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFFINANCIALPOSITION" roleURI="http://cybin.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALPOSITION">
        <link:definition>9952151 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL POSITION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFLOSSANDCOMPREHENSIVELOSS" roleURI="http://cybin.com/role/CONSOLIDATEDSTATEMENTSOFLOSSANDCOMPREHENSIVELOSS">
        <link:definition>9952152 - Statement - CONSOLIDATED STATEMENTS OF LOSS AND COMPREHENSIVE LOSS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITY" roleURI="http://cybin.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITY">
        <link:definition>9952153 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTOFCASHFLOWS" roleURI="http://cybin.com/role/CONSOLIDATEDSTATEMENTOFCASHFLOWS">
        <link:definition>9952154 - Statement - CONSOLIDATED STATEMENT OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CORPORATEINFORMATION" roleURI="http://cybin.com/role/CORPORATEINFORMATION">
        <link:definition>9952155 - Disclosure - CORPORATE INFORMATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATION" roleURI="http://cybin.com/role/MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATION">
        <link:definition>9952156 - Disclosure - MATERIAL ACCOUNTING POLICY INFORMATION AND BASIS OF PREPARATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CRITICALACCOUNTINGESTIMATESANDJUDGMENTS" roleURI="http://cybin.com/role/CRITICALACCOUNTINGESTIMATESANDJUDGMENTS">
        <link:definition>9952157 - Disclosure - CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EQUIPMENT" roleURI="http://cybin.com/role/EQUIPMENT">
        <link:definition>9952158 - Disclosure - EQUIPMENT</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INTANGIBLEASSETS" roleURI="http://cybin.com/role/INTANGIBLEASSETS">
        <link:definition>9952159 - Disclosure - INTANGIBLE ASSETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RIGHTOFUSEASSETSANDLEASELIABILITIES" roleURI="http://cybin.com/role/RIGHTOFUSEASSETSANDLEASELIABILITIES">
        <link:definition>9952160 - Disclosure - RIGHT-OF-USE ASSETS AND LEASE LIABILITIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GOODWILL" roleURI="http://cybin.com/role/GOODWILL">
        <link:definition>9952161 - Disclosure - GOODWILL</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONVERTIBLEDEBENTURES" roleURI="http://cybin.com/role/CONVERTIBLEDEBENTURES">
        <link:definition>9952162 - Disclosure - CONVERTIBLE DEBENTURES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITAL" roleURI="http://cybin.com/role/SHARECAPITAL">
        <link:definition>9952163 - Disclosure - SHARE CAPITAL</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RELATEDPARTYTRANSACTIONSANDBALANCES" roleURI="http://cybin.com/role/RELATEDPARTYTRANSACTIONSANDBALANCES">
        <link:definition>9952164 - Disclosure - RELATED PARTY TRANSACTIONS AND BALANCES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RESEARCHEXPENSES" roleURI="http://cybin.com/role/RESEARCHEXPENSES">
        <link:definition>9952165 - Disclosure - RESEARCH EXPENSES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GENERALANDADMINISTRATIVEEXPENSES" roleURI="http://cybin.com/role/GENERALANDADMINISTRATIVEEXPENSES">
        <link:definition>9952166 - Disclosure - GENERAL AND ADMINISTRATIVE EXPENSES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONTRACTSCOMMITMENTSANDCONTINGENCIES" roleURI="http://cybin.com/role/CONTRACTSCOMMITMENTSANDCONTINGENCIES">
        <link:definition>9952167 - Disclosure - CONTRACTS, COMMITMENTS AND CONTINGENCIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CAPITALMANAGEMENT" roleURI="http://cybin.com/role/CAPITALMANAGEMENT">
        <link:definition>9952168 - Disclosure - CAPITAL MANAGEMENT</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTS" roleURI="http://cybin.com/role/FINANCIALINSTRUMENTS">
        <link:definition>9952169 - Disclosure - FINANCIAL INSTRUMENTS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INCOMETAX" roleURI="http://cybin.com/role/INCOMETAX">
        <link:definition>9952170 - Disclosure - INCOME TAX</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SUBSEQUENTEVENTS" roleURI="http://cybin.com/role/SUBSEQUENTEVENTS">
        <link:definition>9952171 - Disclosure - SUBSEQUENT EVENTS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONPolicies" roleURI="http://cybin.com/role/MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONPolicies">
        <link:definition>9955511 - Disclosure - MATERIAL ACCOUNTING POLICY INFORMATION AND BASIS OF PREPARATION (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CORPORATEINFORMATIONTables" roleURI="http://cybin.com/role/CORPORATEINFORMATIONTables">
        <link:definition>9955512 - Disclosure - CORPORATE INFORMATION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONTables" roleURI="http://cybin.com/role/MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONTables">
        <link:definition>9955513 - Disclosure - MATERIAL ACCOUNTING POLICY INFORMATION AND BASIS OF PREPARATION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EQUIPMENTTables" roleURI="http://cybin.com/role/EQUIPMENTTables">
        <link:definition>9955514 - Disclosure - EQUIPMENT (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INTANGIBLEASSETSTables" roleURI="http://cybin.com/role/INTANGIBLEASSETSTables">
        <link:definition>9955515 - Disclosure - INTANGIBLE ASSETS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RIGHTOFUSEASSETSANDLEASELIABILITIESTables" roleURI="http://cybin.com/role/RIGHTOFUSEASSETSANDLEASELIABILITIESTables">
        <link:definition>9955516 - Disclosure - RIGHT-OF-USE ASSETS AND LEASE LIABILITIES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GOODWILLTables" roleURI="http://cybin.com/role/GOODWILLTables">
        <link:definition>9955517 - Disclosure - GOODWILL (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONVERTIBLEDEBENTURESTables" roleURI="http://cybin.com/role/CONVERTIBLEDEBENTURESTables">
        <link:definition>9955518 - Disclosure - CONVERTIBLE DEBENTURES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALTables" roleURI="http://cybin.com/role/SHARECAPITALTables">
        <link:definition>9955519 - Disclosure - SHARE CAPITAL (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RELATEDPARTYTRANSACTIONSANDBALANCESTables" roleURI="http://cybin.com/role/RELATEDPARTYTRANSACTIONSANDBALANCESTables">
        <link:definition>9955520 - Disclosure - RELATED PARTY TRANSACTIONS AND BALANCES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RESEARCHEXPENSESTables" roleURI="http://cybin.com/role/RESEARCHEXPENSESTables">
        <link:definition>9955521 - Disclosure - RESEARCH EXPENSES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GENERALANDADMINISTRATIVEEXPENSESTables" roleURI="http://cybin.com/role/GENERALANDADMINISTRATIVEEXPENSESTables">
        <link:definition>9955522 - Disclosure - GENERAL AND ADMINISTRATIVE EXPENSES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CAPITALMANAGEMENTTables" roleURI="http://cybin.com/role/CAPITALMANAGEMENTTables">
        <link:definition>9955523 - Disclosure - CAPITAL MANAGEMENT (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSTables" roleURI="http://cybin.com/role/FINANCIALINSTRUMENTSTables">
        <link:definition>9955524 - Disclosure - FINANCIAL INSTRUMENTS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INCOMETAXTables" roleURI="http://cybin.com/role/INCOMETAXTables">
        <link:definition>9955525 - Disclosure - INCOME TAX (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CORPORATEINFORMATIONDetails" roleURI="http://cybin.com/role/CORPORATEINFORMATIONDetails">
        <link:definition>9955526 - Disclosure - CORPORATE INFORMATION (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONFunctionalandpresentationcurrencyDetails" roleURI="http://cybin.com/role/MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONFunctionalandpresentationcurrencyDetails">
        <link:definition>9955527 - Disclosure - MATERIAL ACCOUNTING POLICY INFORMATION AND BASIS OF PREPARATION - Functional and presentation currency (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONCashandcashequivalentsDetails" roleURI="http://cybin.com/role/MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONCashandcashequivalentsDetails">
        <link:definition>9955528 - Disclosure - MATERIAL ACCOUNTING POLICY INFORMATION AND BASIS OF PREPARATION - Cash and cash equivalents (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONEquipmentandIntangibleAssetsDetails" roleURI="http://cybin.com/role/MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONEquipmentandIntangibleAssetsDetails">
        <link:definition>9955529 - Disclosure - MATERIAL ACCOUNTING POLICY INFORMATION AND BASIS OF PREPARATION - Equipment and Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONSharebasedcompensationDetails" roleURI="http://cybin.com/role/MATERIALACCOUNTINGPOLICYINFORMATIONANDBASISOFPREPARATIONSharebasedcompensationDetails">
        <link:definition>9955530 - Disclosure - MATERIAL ACCOUNTING POLICY INFORMATION AND BASIS OF PREPARATION - Share-based compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EQUIPMENTDetails" roleURI="http://cybin.com/role/EQUIPMENTDetails">
        <link:definition>9955531 - Disclosure - EQUIPMENT (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INTANGIBLEASSETSDetails" roleURI="http://cybin.com/role/INTANGIBLEASSETSDetails">
        <link:definition>9955532 - Disclosure - INTANGIBLE ASSETS (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RIGHTOFUSEASSETSANDLEASELIABILITIESNarrativeDetails" roleURI="http://cybin.com/role/RIGHTOFUSEASSETSANDLEASELIABILITIESNarrativeDetails">
        <link:definition>9955533 - Disclosure - RIGHT-OF-USE ASSETS AND LEASE LIABILITIES - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RIGHTOFUSEASSETSANDLEASELIABILITIESRightofuseassetsDetails" roleURI="http://cybin.com/role/RIGHTOFUSEASSETSANDLEASELIABILITIESRightofuseassetsDetails">
        <link:definition>9955534 - Disclosure - RIGHT-OF-USE ASSETS AND LEASE LIABILITIES - Right of use assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RIGHTOFUSEASSETSANDLEASELIABILITIESLeaseliabilitiesDetails" roleURI="http://cybin.com/role/RIGHTOFUSEASSETSANDLEASELIABILITIESLeaseliabilitiesDetails">
        <link:definition>9955535 - Disclosure - RIGHT-OF-USE ASSETS AND LEASE LIABILITIES - Lease liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GOODWILLDetails" roleURI="http://cybin.com/role/GOODWILLDetails">
        <link:definition>9955536 - Disclosure - GOODWILL (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONVERTIBLEDEBENTURESNarrativeDetails" roleURI="http://cybin.com/role/CONVERTIBLEDEBENTURESNarrativeDetails">
        <link:definition>9955537 - Disclosure - CONVERTIBLE DEBENTURES - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONVERTIBLEDEBENTURESContinuityofConvertibleDebenturesDetails" roleURI="http://cybin.com/role/CONVERTIBLEDEBENTURESContinuityofConvertibleDebenturesDetails">
        <link:definition>9955538 - Disclosure - CONVERTIBLE DEBENTURES - Continuity of Convertible Debentures (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALNarrativeIssuedShareCapitalDetails" roleURI="http://cybin.com/role/SHARECAPITALNarrativeIssuedShareCapitalDetails">
        <link:definition>9955539 - Disclosure - SHARE CAPITAL - Narrative - Issued Share Capital (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALSummaryofsharecapitalDetails" roleURI="http://cybin.com/role/SHARECAPITALSummaryofsharecapitalDetails">
        <link:definition>9955540 - Disclosure - SHARE CAPITAL - Summary of share capital (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALNarrativeWarrantsDetails" roleURI="http://cybin.com/role/SHARECAPITALNarrativeWarrantsDetails">
        <link:definition>9955541 - Disclosure - SHARE CAPITAL - Narrative - Warrants (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALSummaryofwarrantsDetails" roleURI="http://cybin.com/role/SHARECAPITALSummaryofwarrantsDetails">
        <link:definition>9955542 - Disclosure - SHARE CAPITAL - Summary of warrants (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALSummaryofsignificantunobservableinputsusedequityDetails" roleURI="http://cybin.com/role/SHARECAPITALSummaryofsignificantunobservableinputsusedequityDetails">
        <link:definition>9955543 - Disclosure - SHARE CAPITAL - Summary of significant unobservable inputs used, equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALSummaryofwarrantsbyexpiryperiodDetails" roleURI="http://cybin.com/role/SHARECAPITALSummaryofwarrantsbyexpiryperiodDetails">
        <link:definition>9955544 - Disclosure - SHARE CAPITAL - Summary of warrants by expiry period (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALNarrativeStockoptionsDetails" roleURI="http://cybin.com/role/SHARECAPITALNarrativeStockoptionsDetails">
        <link:definition>9955545 - Disclosure - SHARE CAPITAL - Narrative - Stock options (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALSummaryofnumberandweightedaverageexercisepricesofshareoptionsDetails" roleURI="http://cybin.com/role/SHARECAPITALSummaryofnumberandweightedaverageexercisepricesofshareoptionsDetails">
        <link:definition>9955546 - Disclosure - SHARE CAPITAL - Summary of number and weighted average exercise prices of share options (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALSummaryofmeasurementofstockoptionfairvalueassumptionsDetails" roleURI="http://cybin.com/role/SHARECAPITALSummaryofmeasurementofstockoptionfairvalueassumptionsDetails">
        <link:definition>9955547 - Disclosure - SHARE CAPITAL - Summary of measurement of stock option fair value assumptions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALSummaryofstockoptioninformationDetails" roleURI="http://cybin.com/role/SHARECAPITALSummaryofstockoptioninformationDetails">
        <link:definition>9955548 - Disclosure - SHARE CAPITAL - Summary of stock option information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALNarrativeRestrictedandPerformanceshareunitsDetails" roleURI="http://cybin.com/role/SHARECAPITALNarrativeRestrictedandPerformanceshareunitsDetails">
        <link:definition>9955549 - Disclosure - SHARE CAPITAL - Narrative - Restricted and Performance share units (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SHARECAPITALSummaryofRSUandPSUsDetails" roleURI="http://cybin.com/role/SHARECAPITALSummaryofRSUandPSUsDetails">
        <link:definition>9955550 - Disclosure - SHARE CAPITAL - Summary of RSU and PSU's (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RELATEDPARTYTRANSACTIONSANDBALANCESScheduleofRemunerationofKeyManagementPersonnelDetails" roleURI="http://cybin.com/role/RELATEDPARTYTRANSACTIONSANDBALANCESScheduleofRemunerationofKeyManagementPersonnelDetails">
        <link:definition>9955551 - Disclosure - RELATED PARTY TRANSACTIONS AND BALANCES - Schedule of Remuneration of Key Management Personnel (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RELATEDPARTYTRANSACTIONSANDBALANCESNarrativeDetails" roleURI="http://cybin.com/role/RELATEDPARTYTRANSACTIONSANDBALANCESNarrativeDetails">
        <link:definition>9955552 - Disclosure - RELATED PARTY TRANSACTIONS AND BALANCES - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RESEARCHEXPENSESDetails" roleURI="http://cybin.com/role/RESEARCHEXPENSESDetails">
        <link:definition>9955553 - Disclosure - RESEARCH EXPENSES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GENERALANDADMINISTRATIVEEXPENSESDetails" roleURI="http://cybin.com/role/GENERALANDADMINISTRATIVEEXPENSESDetails">
        <link:definition>9955554 - Disclosure - GENERAL AND ADMINISTRATIVE EXPENSES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONTRACTSCOMMITMENTSANDCONTINGENCIESDetails" roleURI="http://cybin.com/role/CONTRACTSCOMMITMENTSANDCONTINGENCIESDetails">
        <link:definition>9955555 - Disclosure - CONTRACTS, COMMITMENTS AND CONTINGENCIES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CAPITALMANAGEMENTDetails" roleURI="http://cybin.com/role/CAPITALMANAGEMENTDetails">
        <link:definition>9955556 - Disclosure - CAPITAL MANAGEMENT (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSScheduleofFinancialAssetsandLiabilitiesDetails" roleURI="http://cybin.com/role/FINANCIALINSTRUMENTSScheduleofFinancialAssetsandLiabilitiesDetails">
        <link:definition>9955557 - Disclosure - FINANCIAL INSTRUMENTS - Schedule of Financial Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSNarrativeDetails" roleURI="http://cybin.com/role/FINANCIALINSTRUMENTSNarrativeDetails">
        <link:definition>9955558 - Disclosure - FINANCIAL INSTRUMENTS - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSScheduleofMonetaryAssetsandLiabilitiesCurrencyRiskFluctuationsDetails" roleURI="http://cybin.com/role/FINANCIALINSTRUMENTSScheduleofMonetaryAssetsandLiabilitiesCurrencyRiskFluctuationsDetails">
        <link:definition>9955559 - Disclosure - FINANCIAL INSTRUMENTS - Schedule of Monetary Assets and Liabilities Currency Risk Fluctuations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INCOMETAXIncomeTaxRateReconciliationDetails" roleURI="http://cybin.com/role/INCOMETAXIncomeTaxRateReconciliationDetails">
        <link:definition>9955560 - Disclosure - INCOME TAX - Income Tax Rate Reconciliation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INCOMETAXDeferredTaxAssetsDetails" roleURI="http://cybin.com/role/INCOMETAXDeferredTaxAssetsDetails">
        <link:definition>9955561 - Disclosure - INCOME TAX - Deferred Tax Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INCOMETAXNoncapitalLossesExpirationDetails" roleURI="http://cybin.com/role/INCOMETAXNoncapitalLossesExpirationDetails">
        <link:definition>9955562 - Disclosure - INCOME TAX - Non-capital Losses Expiration (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INCOMETAXAdditionalInformationDetails" roleURI="http://cybin.com/role/INCOMETAXAdditionalInformationDetails">
        <link:definition>9955563 - Disclosure - INCOME TAX - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SUBSEQUENTEVENTSDetails" roleURI="http://cybin.com/role/SUBSEQUENTEVENTSDetails">
        <link:definition>9955564 - Disclosure - SUBSEQUENT EVENTS (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="cybn_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_PreFundedWarrants" abstract="false" name="PreFundedWarrants" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ReserveOfRestrictedAndPerformanceShareBasedPayments" abstract="false" name="ReserveOfRestrictedAndPerformanceShareBasedPayments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_MiscellaneousIncomeExpenseAbstract" abstract="true" name="MiscellaneousIncomeExpenseAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_DebtIssueRelatedCost" abstract="false" name="DebtIssueRelatedCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_OtherIncomeLoss" abstract="false" name="OtherIncomeLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PreFundedWarrantsMember" abstract="true" name="PreFundedWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_RSUAndPSUsMember" abstract="true" name="RSUAndPSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_IncreaseDecreaseThroughShareConsolidationEquity" abstract="false" name="IncreaseDecreaseThroughShareConsolidationEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_ShareIssuanceNetOfShareIssuanceCostsShares" abstract="false" name="ShareIssuanceNetOfShareIssuanceCostsShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_ShareIssuanceNetOfShareIssuanceCosts" abstract="false" name="ShareIssuanceNetOfShareIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PreFundedWarrantsNetOfIssuanceCostsShares" abstract="false" name="PreFundedWarrantsNetOfIssuanceCostsShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_PreFundedWarrantsNetOfIssuanceCosts" abstract="false" name="PreFundedWarrantsNetOfIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PreFundedWarrantsExercisedShares" abstract="false" name="PreFundedWarrantsExercisedShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_PreFundedWarrantsExercised" abstract="false" name="PreFundedWarrantsExercised" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_NumberOfSharesIssuedThroughShareOfferingEquity" abstract="false" name="NumberOfSharesIssuedThroughShareOfferingEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_IncreaseDecreaseThroughShareOfferingEquity" abstract="false" name="IncreaseDecreaseThroughShareOfferingEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_IncreaseDecreaseThroughConversionOfConvertibleInstrumentsShares" abstract="false" name="IncreaseDecreaseThroughConversionOfConvertibleInstrumentsShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_ClassBSharesCancellationShares" abstract="false" name="ClassBSharesCancellationShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_ClassBSharesCancellationValue" abstract="false" name="ClassBSharesCancellationValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_IncreaseDecreaseThroughExerciseOfOptionsEquityShares" abstract="false" name="IncreaseDecreaseThroughExerciseOfOptionsEquityShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_IncreaseDecreaseThroughRestrictedShareUnitsVestedShares" abstract="false" name="IncreaseDecreaseThroughRestrictedShareUnitsVestedShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_IncreaseDecreaseThroughRestrictedShareUnitsVested" abstract="false" name="IncreaseDecreaseThroughRestrictedShareUnitsVested" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_SharesWithheldForIncomeTaxObligationsShares" abstract="false" name="SharesWithheldForIncomeTaxObligationsShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_SharesWithheldForIncomeTaxObligationsAmount" abstract="false" name="SharesWithheldForIncomeTaxObligationsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_IncreaseDecreaseThroughShareOptionsForfeitedAndExpiredInShareBasedPaymentAwardEquity" abstract="false" name="IncreaseDecreaseThroughShareOptionsForfeitedAndExpiredInShareBasedPaymentAwardEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_AdjustmentsForUnrealizedGainLossOnForeignCurrencyTranslation" abstract="false" name="AdjustmentsForUnrealizedGainLossOnForeignCurrencyTranslation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_AdjustmentsForOtherLossesGains" abstract="false" name="AdjustmentsForOtherLossesGains" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_AdjustmentsForWorkingCapitalAbstract" abstract="true" name="AdjustmentsForWorkingCapitalAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_AdjustmentsForDecreaseIncreaseInAccruedAndOtherLiabilities" abstract="false" name="AdjustmentsForDecreaseIncreaseInAccruedAndOtherLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PurchaseOfPropertyPlantEquipmentAndIntangibleAssetsClassifiedAsInvestingActivities" abstract="false" name="PurchaseOfPropertyPlantEquipmentAndIntangibleAssetsClassifiedAsInvestingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ProceedsOnSaleOfLabEquipment" abstract="false" name="ProceedsOnSaleOfLabEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PaymentsForTaxesRelatedToSettlementOfRestrictedStock" abstract="false" name="PaymentsForTaxesRelatedToSettlementOfRestrictedStock" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_SupplementalCashFlowInformationAbstract" abstract="true" name="SupplementalCashFlowInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_InterestReceived" abstract="false" name="InterestReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_InterestPaid" abstract="false" name="InterestPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_AccountingPoliciesAbstract" abstract="true" name="AccountingPoliciesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_CriticalAccountingEstimatesAndJudgementsAbstract" abstract="true" name="CriticalAccountingEstimatesAndJudgementsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_PropertyPlantAndEquipment1Abstract" abstract="true" name="PropertyPlantAndEquipment1Abstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_IntangibleAssetsAbstract" abstract="true" name="IntangibleAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_DisclosureOfLeasesAndRightOfUseAssetsTextBlock" abstract="false" name="DisclosureOfLeasesAndRightOfUseAssetsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_GoodwillAbstract" abstract="true" name="GoodwillAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_ConvertibleDebenturesAbstract" abstract="true" name="ConvertibleDebenturesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_RelatedPartyAbstract" abstract="true" name="RelatedPartyAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_CommitmentsAbstract" abstract="true" name="CommitmentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_CapitalManagementAbstract" abstract="true" name="CapitalManagementAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_FinancialInstrumentsAbstract" abstract="true" name="FinancialInstrumentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_IncomeTaxesAbstract" abstract="true" name="IncomeTaxesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_EventsAfterReportingPeriodAbstract" abstract="true" name="EventsAfterReportingPeriodAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_DisclosureOfAccountingPolicyForBasisOfMeasurementPolicyTextBlock" abstract="false" name="DisclosureOfAccountingPolicyForBasisOfMeasurementPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_DisclosureOfBasisOfConsolidationPolicyTextBlock" abstract="false" name="DisclosureOfBasisOfConsolidationPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_DescriptionOfAccountingPolicyForRestrictedShareUnitsPolicyTextBlock" abstract="false" name="DescriptionOfAccountingPolicyForRestrictedShareUnitsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_DescriptionOfAccountingPolicyForPerformanceShareUnitsPolicyTextBlock" abstract="false" name="DescriptionOfAccountingPolicyForPerformanceShareUnitsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_ScheduleOfSubsidiariesNameChangesTableTextBlock" abstract="false" name="ScheduleOfSubsidiariesNameChangesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_DetailDescriptionOfFunctionalCurrenciesTableTextBlock" abstract="false" name="DetailDescriptionOfFunctionalCurrenciesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_ScheduleOfResearchExpensesTableTextBlock" abstract="false" name="ScheduleOfResearchExpensesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_DisclosureOfCapitalStructureTableTextBlock" abstract="false" name="DisclosureOfCapitalStructureTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_DisclosureOfReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesTableTextBlock" abstract="false" name="DisclosureOfReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_DisclosureOfExpirationOfNonCapitalLossesTableTextBlock" abstract="false" name="DisclosureOfExpirationOfNonCapitalLossesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cybn_NumberOfSubsidiaries" abstract="false" name="NumberOfSubsidiaries" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cybn_OrdinarySharesConsolidationNewSharesIssued" abstract="false" name="OrdinarySharesConsolidationNewSharesIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_OrdinarySharesConsolidationSharesIssuedPreviously" abstract="false" name="OrdinarySharesConsolidationSharesIssuedPreviously" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_HelusPharmaCorp.Member" abstract="true" name="HelusPharmaCorp.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_JourneyMember" abstract="true" name="JourneyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_SerenityMember" abstract="true" name="SerenityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_HelusUSMember" abstract="true" name="HelusUSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_AdeliaMember" abstract="true" name="AdeliaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_CybinIRLLimitedMember" abstract="true" name="CybinIRLLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_CybinUKLtd.Member" abstract="true" name="CybinUKLtd.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_HelusInternationalMember" abstract="true" name="HelusInternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_LaboratoryEquipmentMember" abstract="true" name="LaboratoryEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ShareBasedCompensationArrangementExpirationPeriod" abstract="false" name="ShareBasedCompensationArrangementExpirationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_LabEquipmentDisposedOfMember" abstract="true" name="LabEquipmentDisposedOfMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GainLossOnDerecognitionOfRightOfUseAssets" abstract="false" name="GainLossOnDerecognitionOfRightOfUseAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_GainLossOnDerecognitionOfLeaseLiability" abstract="false" name="GainLossOnDerecognitionOfLeaseLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_EffectOfForeignExchangeRightOfUseAssets" abstract="false" name="EffectOfForeignExchangeRightOfUseAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_AdditionsToLeaseLiabilities" abstract="false" name="AdditionsToLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_EffectOfForeignExchangeLeaseLiabilities" abstract="false" name="EffectOfForeignExchangeLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PaymentForTerminationPenaltyLeaseLiability" abstract="false" name="PaymentForTerminationPenaltyLeaseLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PaymentsOfLeaseLiabilities" abstract="false" name="PaymentsOfLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ConvertibleDebenturesMember" abstract="true" name="ConvertibleDebenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ClassesOfDebtInstrumentsAxis" abstract="true" name="ClassesOfDebtInstrumentsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_ClassesOfDebtInstrumentsDomain" abstract="true" name="ClassesOfDebtInstrumentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ConvertibleDebentureTerm" abstract="false" name="ConvertibleDebentureTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_PrePaidGuaranteedInterest" abstract="false" name="PrePaidGuaranteedInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PrincipalInterestPercentage" abstract="false" name="PrincipalInterestPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentEquivalentPercentage" abstract="false" name="DebtInstrumentEquivalentPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_IncreasingOutstandingPrincipalBalancePercentage" abstract="false" name="IncreasingOutstandingPrincipalBalancePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentConversionPrice" abstract="false" name="DebtInstrumentConversionPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_VolumeWeightedAveragePricePercentage" abstract="false" name="VolumeWeightedAveragePricePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentConvertibleDebentureThresholdTradingDays" abstract="false" name="DebtInstrumentConvertibleDebentureThresholdTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_PrepaymentPremiumOfPercentageYearOne" abstract="false" name="PrepaymentPremiumOfPercentageYearOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_PrepaymentPremiumOfPercentageYearTwo" abstract="false" name="PrepaymentPremiumOfPercentageYearTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentConversionPercentage" abstract="false" name="DebtInstrumentConversionPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_UnsecuredDebtFairValue" abstract="false" name="UnsecuredDebtFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_UnsecuredDebtFairValueDiscountRate" abstract="false" name="UnsecuredDebtFairValueDiscountRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_UnsecuredDebtVotalityRate" abstract="false" name="UnsecuredDebtVotalityRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_NetCashReceivedUponIssuance" abstract="false" name="NetCashReceivedUponIssuance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_DeferredLossOnFairValueDifference" abstract="false" name="DeferredLossOnFairValueDifference" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_IncurredDebtIssuanceCosts" abstract="false" name="IncurredDebtIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_IssuanceCosts" abstract="false" name="IssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_RepaidOutstandingBalanceTotal" abstract="false" name="RepaidOutstandingBalanceTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_RepaymentOfRemainingPrincipal" abstract="false" name="RepaymentOfRemainingPrincipal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_EarlyRepaymentFees" abstract="false" name="EarlyRepaymentFees" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_WithholdingTaxes" abstract="false" name="WithholdingTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_FairValueLossOnFinancialInstruments" abstract="false" name="FairValueLossOnFinancialInstruments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ChangeInFairValueLossRecognized" abstract="false" name="ChangeInFairValueLossRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ConvertibleDebenturesRollForward" abstract="true" name="ConvertibleDebenturesRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_ConvertibleDebenturesAmountConverted" abstract="false" name="ConvertibleDebenturesAmountConverted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ConvertibleDebentureRepayments" abstract="false" name="ConvertibleDebentureRepayments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ConvertibleChangeInFairValue" abstract="false" name="ConvertibleChangeInFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_AtTheMarketEquityProgramsAxis" abstract="true" name="AtTheMarketEquityProgramsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_AtTheMarketEquityProgramsDomain" abstract="true" name="AtTheMarketEquityProgramsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ATMProgramsMember" abstract="true" name="ATMProgramsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2025ATMProgramMember" abstract="true" name="A2025ATMProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2026ATMProgramMember" abstract="true" name="A2026ATMProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_EquityOfferingsAxis" abstract="true" name="EquityOfferingsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_EquityOfferingsDomain" abstract="true" name="EquityOfferingsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_October2025RegisteredDirectOfferingMember" abstract="true" name="October2025RegisteredDirectOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_EquityIssuanceSourceAxis" abstract="true" name="EquityIssuanceSourceAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_EquityIssuanceSourceDomain" abstract="true" name="EquityIssuanceSourceDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ConversionOfConvertibleDebenturesMember" abstract="true" name="ConversionOfConvertibleDebenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ExerciseOfPreFundedWarrantsMember" abstract="true" name="ExerciseOfPreFundedWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_HighTrailMember" abstract="true" name="HighTrailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ClassBSharesMember" abstract="true" name="ClassBSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_AveragePricePerShareOfSharesIssued" abstract="false" name="AveragePricePerShareOfSharesIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_NumberOfInstrumentsGrantedOrIssued" abstract="false" name="NumberOfInstrumentsGrantedOrIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_ExercisePriceOfInstrumentsGrantedOrIssued" abstract="false" name="ExercisePriceOfInstrumentsGrantedOrIssued" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_WarrantsBundledRatio" abstract="false" name="WarrantsBundledRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cybn_WarrantPublicationPressReleaseDayThreshold" abstract="false" name="WarrantPublicationPressReleaseDayThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_WarrantAccelerationSharePriceThreshold" abstract="false" name="WarrantAccelerationSharePriceThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_FinancialLiabilitiesExtinguished" abstract="false" name="FinancialLiabilitiesExtinguished" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_WarrantThresholdTradingDays" abstract="false" name="WarrantThresholdTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_CommonStockSharesAuthorizedValue" abstract="false" name="CommonStockSharesAuthorizedValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_SharePricePerCommonShare" abstract="false" name="SharePricePerCommonShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="cybn_NumberOfSharesIssuedUponConversionOfConvertibleInstruments" abstract="false" name="NumberOfSharesIssuedUponConversionOfConvertibleInstruments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfSharesCancelledThroughContingentConsiderationEquity" abstract="false" name="NumberOfSharesCancelledThroughContingentConsiderationEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_RegisteredDirectOfferingMember" abstract="true" name="RegisteredDirectOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_CommonSharePurchaseWarrantsMember" abstract="true" name="CommonSharePurchaseWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantedToOfficersAndDirectorsMember" abstract="true" name="GrantedToOfficersAndDirectorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_TransactionCostsOfIssuingSharesDeductedFromEquity" abstract="false" name="TransactionCostsOfIssuingSharesDeductedFromEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_NumberOfSharesAcquiredUponGrantedOfWarrantInShareBasedPaymentArrangement" abstract="false" name="NumberOfSharesAcquiredUponGrantedOfWarrantInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_FairValueAtMeasurementDateWarrantsGranted" abstract="false" name="FairValueAtMeasurementDateWarrantsGranted" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_NumberOfOtherEquityInstrumentsInShareBasedPaymentArrangementExpiryDateExtended" abstract="false" name="NumberOfOtherEquityInstrumentsInShareBasedPaymentArrangementExpiryDateExtended" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_WarrantsNumberOfSharesRollForward" abstract="true" name="WarrantsNumberOfSharesRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_NumberOfOtherEquityInstrumentsIssuedInShareBasedPaymentArrangement" abstract="false" name="NumberOfOtherEquityInstrumentsIssuedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_WarrantsWeightedAverageExercisePriceRollForward" abstract="true" name="WarrantsWeightedAverageExercisePriceRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInShareBasedPaymentArrangement" abstract="false" name="WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="cybn_RiskFreeInterestRateOtherEquityInstrumentsGranted" abstract="false" name="RiskFreeInterestRateOtherEquityInstrumentsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cybn_ExpectedVolatilityOtherEquityInstrumentsGranted" abstract="false" name="ExpectedVolatilityOtherEquityInstrumentsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cybn_OtherEquityInstrumentsLifeOtherEquityInstrumentsGranted" abstract="false" name="OtherEquityInstrumentsLifeOtherEquityInstrumentsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted" abstract="false" name="ExpectedDividendAsPercentageOtherEquityInstrumentsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cybn_WeightedAverageFairValuePriceAtMeasurementDateOtherEquityInstrumentsGranted" abstract="false" name="WeightedAverageFairValuePriceAtMeasurementDateOtherEquityInstrumentsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="cybn_WarrantExpirationPeriodAxis" abstract="true" name="WarrantExpirationPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_WarrantExpirationPeriodDomain" abstract="true" name="WarrantExpirationPeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_WarrantExpirationPeriodOneMember" abstract="true" name="WarrantExpirationPeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_WarrantExpirationPeriodTwoMember" abstract="true" name="WarrantExpirationPeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_WarrantExpirationPeriodThreeMember" abstract="true" name="WarrantExpirationPeriodThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_WarrantExpirationPeriodFourMember" abstract="true" name="WarrantExpirationPeriodFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_WarrantExpirationPeriodFiveMember" abstract="true" name="WarrantExpirationPeriodFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_WarrantExpirationPeriodSixMember" abstract="true" name="WarrantExpirationPeriodSixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_WeightedAverageRemainingContractualLifeOfOtherEquityInstruments" abstract="false" name="WeightedAverageRemainingContractualLifeOfOtherEquityInstruments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_GrantedToEmployeesOfficersAndConsultantsMember" abstract="true" name="GrantedToEmployeesOfficersAndConsultantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantedToEmployeesMember" abstract="true" name="GrantedToEmployeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantedToOfficersMember" abstract="true" name="GrantedToOfficersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantedToConsultantsMember" abstract="true" name="GrantedToConsultantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantedToEmployeesAndConsultantsMember" abstract="true" name="GrantedToEmployeesAndConsultantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ShareBasedPaymentVestingPeriodAxis" abstract="true" name="ShareBasedPaymentVestingPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_ShareBasedPaymentVestingPeriodDomain" abstract="true" name="ShareBasedPaymentVestingPeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ShareOptionsVestingFirstTrancheMember" abstract="true" name="ShareOptionsVestingFirstTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ShareOptionsVestingSecondTrancheMember" abstract="true" name="ShareOptionsVestingSecondTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantPercentOfTotalSharesOutstanding" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantPercentOfTotalSharesOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cybn_VestingRequirementsForShareBasedPaymentArrangementVestingPeriod" abstract="false" name="VestingRequirementsForShareBasedPaymentArrangementVestingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_NumberOfShareOptionsVestedInShareBasedPaymentArrangement" abstract="false" name="NumberOfShareOptionsVestedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_UnvestedForfeitureRateAsPercentageShareOptionsGranted" abstract="false" name="UnvestedForfeitureRateAsPercentageShareOptionsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cybn_MeasurementInputDescriptionOfOtherMethodUsedToDetermineFairValue" abstract="false" name="MeasurementInputDescriptionOfOtherMethodUsedToDetermineFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cybn_NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" abstract="false" name="NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="cybn_WeightedAverageExercisePriceOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" abstract="false" name="WeightedAverageExercisePriceOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodAxis" abstract="true" name="OptionExpirationPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodDomain" abstract="true" name="OptionExpirationPeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodThirtyFourMember" abstract="true" name="OptionExpirationPeriodThirtyFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodOneMember" abstract="true" name="OptionExpirationPeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwoMember" abstract="true" name="OptionExpirationPeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodThreeMember" abstract="true" name="OptionExpirationPeriodThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodFourMember" abstract="true" name="OptionExpirationPeriodFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodFiveMember" abstract="true" name="OptionExpirationPeriodFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodSixMember" abstract="true" name="OptionExpirationPeriodSixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodSevenMember" abstract="true" name="OptionExpirationPeriodSevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodEightMember" abstract="true" name="OptionExpirationPeriodEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodNineMember" abstract="true" name="OptionExpirationPeriodNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTenMember" abstract="true" name="OptionExpirationPeriodTenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodElevenMember" abstract="true" name="OptionExpirationPeriodElevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwelveMember" abstract="true" name="OptionExpirationPeriodTwelveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodThirteenMember" abstract="true" name="OptionExpirationPeriodThirteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodFourteenMember" abstract="true" name="OptionExpirationPeriodFourteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodFifteenMember" abstract="true" name="OptionExpirationPeriodFifteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodSixteenMember" abstract="true" name="OptionExpirationPeriodSixteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodSeventeenMember" abstract="true" name="OptionExpirationPeriodSeventeenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodEighteenMember" abstract="true" name="OptionExpirationPeriodEighteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodNineteenMember" abstract="true" name="OptionExpirationPeriodNineteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyMember" abstract="true" name="OptionExpirationPeriodTwentyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyOneMember" abstract="true" name="OptionExpirationPeriodTwentyOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyTwoMember" abstract="true" name="OptionExpirationPeriodTwentyTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyThreeMember" abstract="true" name="OptionExpirationPeriodTwentyThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyFourMember" abstract="true" name="OptionExpirationPeriodTwentyFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyFiveMember" abstract="true" name="OptionExpirationPeriodTwentyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentySixMember" abstract="true" name="OptionExpirationPeriodTwentySixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentySevenMember" abstract="true" name="OptionExpirationPeriodTwentySevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyEightMember" abstract="true" name="OptionExpirationPeriodTwentyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ShareBasedPaymentPlanTrancheAxis" abstract="true" name="ShareBasedPaymentPlanTrancheAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_ShareBasedPaymentPlanTrancheDomain" abstract="true" name="ShareBasedPaymentPlanTrancheDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantOctober12025Member" abstract="true" name="GrantOctober12025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantNovember32025Member" abstract="true" name="GrantNovember32025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantFebruary102026Member" abstract="true" name="GrantFebruary102026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantFebruary242026Member" abstract="true" name="GrantFebruary242026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrantMarch102026Member" abstract="true" name="GrantMarch102026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_CrystallizedObligationMarch112026Member" abstract="true" name="CrystallizedObligationMarch112026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_CrystallizedObligationMarch192026Member" abstract="true" name="CrystallizedObligationMarch192026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_PerformanceStockUnitsMember" abstract="true" name="PerformanceStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_EquitySettledShareBasedPaymentArrangementsMember" abstract="true" name="EquitySettledShareBasedPaymentArrangementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_VestingTrancheAxis" abstract="true" name="VestingTrancheAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_VestingTrancheDomain" abstract="true" name="VestingTrancheDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_TrancheOneMember" abstract="true" name="TrancheOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_TrancheTwoMember" abstract="true" name="TrancheTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ThreeEqualAnnualTranchesMember" abstract="true" name="ThreeEqualAnnualTranchesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_VestingPeriodOfShareOptionsGranted" abstract="false" name="VestingPeriodOfShareOptionsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_ShareBasedPaymentArrangementExpense" abstract="false" name="ShareBasedPaymentArrangementExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_NumberOfInstallmentsInGradedVesting" abstract="false" name="NumberOfInstallmentsInGradedVesting" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cybn_NumberOfInstrumentsVestedInShareBasedPaymentArrangement" abstract="false" name="NumberOfInstrumentsVestedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfInstrumentsIssuedInShareBasedPaymentArrangement" abstract="false" name="NumberOfInstrumentsIssuedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_PerformanceShareUnitsMember" abstract="true" name="PerformanceShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ShareBasedPaymentArrangementRollForward" abstract="true" name="ShareBasedPaymentArrangementRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_NumberOfInstrumentsOutstandingInShareBasedPaymentArrangement" abstract="false" name="NumberOfInstrumentsOutstandingInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfInstrumentsDeemedGrantedInShareBasedPaymentArrangement" abstract="false" name="NumberOfInstrumentsDeemedGrantedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfInstrumentsForfeitedInShareBasedPaymentArrangement" abstract="false" name="NumberOfInstrumentsForfeitedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_WeightedAverageGrantDateFairValueInShareBasedPaymentArrangementRollForward" abstract="true" name="WeightedAverageGrantDateFairValueInShareBasedPaymentArrangementRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_WeightedAverageGrantDateFairValueOfInstrumentsOutstandingInShareBasedPaymentArrangement" abstract="false" name="WeightedAverageGrantDateFairValueOfInstrumentsOutstandingInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_WeightedAverageGrantDateFairValueOfInstrumentsGrantedInShareBasedPaymentArrangement" abstract="false" name="WeightedAverageGrantDateFairValueOfInstrumentsGrantedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_WeightedAverageGrantDateFairValueOfInstrumentsDeemedGrantedInShareBasedPaymentArrangement" abstract="false" name="WeightedAverageGrantDateFairValueOfInstrumentsDeemedGrantedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_WeightedAverageGrantDateFairValueOfInstrumentsVestedInShareBasedPaymentArrangement" abstract="false" name="WeightedAverageGrantDateFairValueOfInstrumentsVestedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_WeightedAverageGrantDateFairValueOfInstrumentsForfeitedOrExpiredInShareBasedPaymentArrangement" abstract="false" name="WeightedAverageGrantDateFairValueOfInstrumentsForfeitedOrExpiredInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cybn_ShareBasedPaymentArrangementOptionMember" abstract="true" name="ShareBasedPaymentArrangementOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_RestrictedAndPerformanceShareUnitsMember" abstract="true" name="RestrictedAndPerformanceShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_IncomeStatementLocationAxis" abstract="true" name="IncomeStatementLocationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_IncomeStatementLocationDomain" abstract="true" name="IncomeStatementLocationDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GeneralAndAdministrativeExpenseMember" abstract="true" name="GeneralAndAdministrativeExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ResearchComponentMember" abstract="true" name="ResearchComponentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_AdvancementOfDevelopmentPrograms" abstract="false" name="AdvancementOfDevelopmentPrograms" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_PayrollAndBenefitsExpense" abstract="false" name="PayrollAndBenefitsExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_LabAndAdministrationExpense" abstract="false" name="LabAndAdministrationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ProfessionalAndConsultingFees" abstract="false" name="ProfessionalAndConsultingFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_CapitalMarketExpense" abstract="false" name="CapitalMarketExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_InvestorRelationsSalesAndMarketingExpense" abstract="false" name="InvestorRelationsSalesAndMarketingExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_BusinessDevelopmentExpense" abstract="false" name="BusinessDevelopmentExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_ListingFeesExpense" abstract="false" name="ListingFeesExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_COMMITMENTSTable" abstract="true" name="COMMITMENTSTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_COMMITMENTSLineItems" abstract="true" name="COMMITMENTSLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_SalesRoyaltyPercentage" abstract="false" name="SalesRoyaltyPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cybn_DisclosureOfFinancialAssetsAndLiabilitiesTable" abstract="true" name="DisclosureOfFinancialAssetsAndLiabilitiesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_CashMember" abstract="true" name="CashMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_AccountsPayableAndAccruedLiabilitiesMember" abstract="true" name="AccountsPayableAndAccruedLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_DisclosureOfFinancialAssetsAndLiabilitiesLineItems" abstract="true" name="DisclosureOfFinancialAssetsAndLiabilitiesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_InterestRateRiskIncreaseDecreaseInInterestRateGeneratedOnCash" abstract="false" name="InterestRateRiskIncreaseDecreaseInInterestRateGeneratedOnCash" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="cybn_InterestRateRiskIncreaseDecreaseInInterestIncome" abstract="false" name="InterestRateRiskIncreaseDecreaseInInterestIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_InterestRateRiskTerm" abstract="false" name="InterestRateRiskTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_ClassesOfFinancialAssetsAndLiabilitiesAxis" abstract="true" name="ClassesOfFinancialAssetsAndLiabilitiesAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_ClassesOfFinancialAssetsAndLiabilitiesDomain" abstract="true" name="ClassesOfFinancialAssetsAndLiabilitiesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_FinancialAssetsAndLiabilities" abstract="false" name="FinancialAssetsAndLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_TaxEffectOfShareBasedCompensation" abstract="false" name="TaxEffectOfShareBasedCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_TaxEffectOfShareIssuanceCosts" abstract="false" name="TaxEffectOfShareIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_TaxEffectOfChangeInDeferredTaxAssets" abstract="false" name="TaxEffectOfChangeInDeferredTaxAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_DeferredCompensationMember" abstract="true" name="DeferredCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_RDExpendituresMember" abstract="true" name="RDExpendituresMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_ShareIssuanceCostsMember" abstract="true" name="ShareIssuanceCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_PropertyPlantAndEquipmentRelatedTemporaryDifferencesMember" abstract="true" name="PropertyPlantAndEquipmentRelatedTemporaryDifferencesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_GrossDeferredTaxAssets" abstract="false" name="GrossDeferredTaxAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_DeferredTaxAssetsValuationAllowance" abstract="false" name="DeferredTaxAssetsValuationAllowance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_DisclosureOfNonCapitalLossesExpirationTable" abstract="true" name="DisclosureOfNonCapitalLossesExpirationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_LossCarryforwardExpirationAxis" abstract="true" name="LossCarryforwardExpirationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cybn_LossCarryforwardExpirationDomain" abstract="true" name="LossCarryforwardExpirationDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2036Member" abstract="true" name="A2036Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2037Member" abstract="true" name="A2037Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2038Member" abstract="true" name="A2038Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2039Member" abstract="true" name="A2039Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2040Member" abstract="true" name="A2040Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2041Member" abstract="true" name="A2041Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2042Member" abstract="true" name="A2042Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2043Member" abstract="true" name="A2043Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2044Member" abstract="true" name="A2044Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2045Member" abstract="true" name="A2045Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_A2046Member" abstract="true" name="A2046Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_DisclosureOfNonCapitalLossesExpirationLineItems" abstract="true" name="DisclosureOfNonCapitalLossesExpirationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cybn_NonCapitalLossCarryforward" abstract="false" name="NonCapitalLossCarryforward" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_Section382Limitation" abstract="false" name="Section382Limitation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_RSUMember" abstract="true" name="RSUMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_PSUMember" abstract="true" name="PSUMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_NumberOfShareOptionsVestedAndExpiredInShareBasedPaymentArrangement" abstract="false" name="NumberOfShareOptionsVestedAndExpiredInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfConvertedCommonShares" abstract="false" name="NumberOfConvertedCommonShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
</xs:schema>
