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  <xs:element id="cybn_NumberOfActivePatentFamilies" abstract="false" name="NumberOfActivePatentFamilies" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cybn_NumberOfPendingPatentApplications" abstract="false" name="NumberOfPendingPatentApplications" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cybn_NumberOfGrantedPatents" abstract="false" name="NumberOfGrantedPatents" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cybn_CashRecognisedAsOfAcquisitionDate" abstract="false" name="CashRecognisedAsOfAcquisitionDate" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_RightOfUseAssetRecognisedAsOfAcquisitionDate" abstract="false" name="RightOfUseAssetRecognisedAsOfAcquisitionDate" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" abstract="false" name="LeaseLiabilitiesRecognisedAsOfAcquisitionDate" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ClassBSharesMember" abstract="true" name="ClassBSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_August2023CompensationCommonShareWarrantMember" abstract="true" name="August2023CompensationCommonShareWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_November2023CompensationCommonShareWarrantMember" abstract="true" name="November2023CompensationCommonShareWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_March2024PrivatePlacementMember" abstract="true" name="March2024PrivatePlacementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_NumberOfCommonSharesHeldInEscrow" abstract="false" name="NumberOfCommonSharesHeldInEscrow" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_CommonSharesPurchasePeriodTerm" abstract="false" name="CommonSharesPurchasePeriodTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_PercentageOfOutstandingCommonSharesOwn" abstract="false" name="PercentageOfOutstandingCommonSharesOwn" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cybn_NumberOfSharesAcquiredUponExerciseOfWarrantInShareBasedPaymentArrangement" abstract="false" name="NumberOfSharesAcquiredUponExerciseOfWarrantInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_ExercisePriceOfOtherEquityInstrumentsInShareBasedPaymentArrangement" abstract="false" name="ExercisePriceOfOtherEquityInstrumentsInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="cybn_PeriodToExerciseWarrantsInShareBasedPaymentArrangement" abstract="false" name="PeriodToExerciseWarrantsInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_NumberOfCommonShares" abstract="false" name="NumberOfCommonShares" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfCommonSharePurchaseWarrants" abstract="false" name="NumberOfCommonSharePurchaseWarrants" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfSharesSubjectToResaleRestrictions" abstract="false" name="NumberOfSharesSubjectToResaleRestrictions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfSharesIssuedUponConversionOfConvertibleInstruments" abstract="false" name="NumberOfSharesIssuedUponConversionOfConvertibleInstruments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_CommonSharesExchangeRate" abstract="false" name="CommonSharesExchangeRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="cybn_NumberOfSharesConvertedThroughContingentConsiderationEquity" abstract="false" name="NumberOfSharesConvertedThroughContingentConsiderationEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_NumberOfSharesIssuedThroughContingentConsiderationEquity" abstract="false" name="NumberOfSharesIssuedThroughContingentConsiderationEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_IncreaseDecreaseThroughConversionOfConvertibleInstrumentsEquityShares" abstract="false" name="IncreaseDecreaseThroughConversionOfConvertibleInstrumentsEquityShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_UnitPurchaseWarrantsMember" abstract="true" name="UnitPurchaseWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_GrantedToOfficersAndDirectorsMember" abstract="true" name="GrantedToOfficersAndDirectorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_NumberOfOtherEquityInstrumentsInShareBasedPaymentArrangementExpiryDateExtended" abstract="false" name="NumberOfOtherEquityInstrumentsInShareBasedPaymentArrangementExpiryDateExtended" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_WeightedAverageRemainingContractualLifeOfOtherEquityInstruments" abstract="false" name="WeightedAverageRemainingContractualLifeOfOtherEquityInstruments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_GrantedToOfficersMember" abstract="true" name="GrantedToOfficersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_GrantedToDirectorsMember" abstract="true" name="GrantedToDirectorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_GrantedToEmployeesMember" abstract="true" name="GrantedToEmployeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_GrantedToConsultantsMember" abstract="true" name="GrantedToConsultantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_OptionExpirationPeriodThirtyTwoMember" abstract="true" name="OptionExpirationPeriodThirtyTwoMember" 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_OptionExpirationPeriodThirtyFiveMember" abstract="true" name="OptionExpirationPeriodThirtyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodThirtySixMember" abstract="true" name="OptionExpirationPeriodThirtySixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyNineMember" abstract="true" name="OptionExpirationPeriodTwentyNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodTwentyFourAndThirtyMember" abstract="true" name="OptionExpirationPeriodTwentyFourAndThirtyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_OptionExpirationPeriodThirtyMember" abstract="true" name="OptionExpirationPeriodThirtyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodThirtySevenAndThirtyEightMember" abstract="true" name="OptionExpirationPeriodThirtySevenAndThirtyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodThirtySevenMember" abstract="true" name="OptionExpirationPeriodThirtySevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodThirtyEightMember" abstract="true" name="OptionExpirationPeriodThirtyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cybn_OptionExpirationPeriodThirtyOneMember" abstract="true" name="OptionExpirationPeriodThirtyOneMember" 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-types:domainItemType"/>
  <xs:element id="cybn_ShareOptionsVestingFirstTrancheMember" abstract="true" name="ShareOptionsVestingFirstTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_ShareOptionsVestingSecondTrancheMember" abstract="true" name="ShareOptionsVestingSecondTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_ShareOptionsVestingThirdTrancheMember" abstract="true" name="ShareOptionsVestingThirdTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_ShareOptionsVestingFourthTrancheMember" abstract="true" name="ShareOptionsVestingFourthTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_ShareOptionsVestingFifthTrancheMember" abstract="true" name="ShareOptionsVestingFifthTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_NumberOfShareOptionsVestedInShareBasedPaymentArrangement" abstract="false" name="NumberOfShareOptionsVestedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cybn_VestingRequirementsForShareBasedPaymentArrangementVestingPeriod" abstract="false" name="VestingRequirementsForShareBasedPaymentArrangementVestingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <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-types:perShareItemType"/>
  <xs:element id="cybn_UnvestedForfeitureRateAsPercentageShareOptionsGranted" abstract="false" name="UnvestedForfeitureRateAsPercentageShareOptionsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_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_OptionExpirationPeriodThirtyThreeMember" abstract="true" name="OptionExpirationPeriodThirtyThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_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_PayrollAndBenefits" abstract="false" name="PayrollAndBenefits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cybn_LabAndAdministration" abstract="false" name="LabAndAdministration" 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_BusinessDevelopmentExpense" abstract="false" name="BusinessDevelopmentExpense" 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_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-types: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_SensitivityAnalysisForTypesOfRisksReasonablyPossibleChangeInRiskVariablePercent" abstract="false" name="SensitivityAnalysisForTypesOfRisksReasonablyPossibleChangeInRiskVariablePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cybn_SensitivityAnalysisForTypesOfRisksReasonablyPossibleChangeInRiskVariableImpactOnProfitLoss" abstract="false" name="SensitivityAnalysisForTypesOfRisksReasonablyPossibleChangeInRiskVariableImpactOnProfitLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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-types:domainItemType"/>
  <xs:element id="cybn_A2037Member" abstract="true" name="A2037Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_A2038Member" abstract="true" name="A2038Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_A2039Member" abstract="true" name="A2039Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_A2040Member" abstract="true" name="A2040Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_A2041Member" abstract="true" name="A2041Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_A2042Member" abstract="true" name="A2042Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_A2043Member" abstract="true" name="A2043Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_A2044Member" abstract="true" name="A2044Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_A2045Member" abstract="true" name="A2045Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_A20402041Member" abstract="true" name="A20402041Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="cybn_ClassesOfDebtInstrumentsDomain" abstract="true" name="ClassesOfDebtInstrumentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="cybn_ConvertibleDebenturePrivatePlacementMember" abstract="true" name="ConvertibleDebenturePrivatePlacementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cybn_DebtInstrumentTerm" abstract="false" name="DebtInstrumentTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cybn_DebtInstrumentGuaranteedInterestPayableRate" abstract="false" name="DebtInstrumentGuaranteedInterestPayableRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentGuaranteedInterestPayableAnnualRate" abstract="false" name="DebtInstrumentGuaranteedInterestPayableAnnualRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentDefaultRate" abstract="false" name="DebtInstrumentDefaultRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentConvertibleDebentureThresholdPercentageOfStockPriceTrigger" abstract="false" name="DebtInstrumentConvertibleDebentureThresholdPercentageOfStockPriceTrigger" 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_DebtInstrumentPrepaymentPremiumYearOne" abstract="false" name="DebtInstrumentPrepaymentPremiumYearOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentPrepaymentPremiumYearTwo" abstract="false" name="DebtInstrumentPrepaymentPremiumYearTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cybn_DebtInstrumentConvertibleDebentureMaximumAffiliateOwnershipPercentage" abstract="false" name="DebtInstrumentConvertibleDebentureMaximumAffiliateOwnershipPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
</xs:schema>
