17 Cortical Networks and Disconnection Syndromes Notes Copy.pdf - adapability Now we r looking c connections viabrain t connections b w various regions

17 Cortical Networks and Disconnection Syndromes Notes Copy.pdf

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CorticalsurfaceimportantforalthflexibilityadapabilityNowwerlookingcconnectionsviabrain17CorticalNetworkstDisconnectionsyndromeconnections bwvariousregionsof the cortexconnections bwthe2hemispheresCommissuralfibrerepresentsgreatestofaxonsthatconnects2hem2getherAnteriorcommissure2frontallobesPosteriorcommissure2backsidesIntermediatemass2sidesofthalmusHippocampalcommissurebothhippocampiCorpuscallosumPortrait AtCrossPurposesDMDirectoroflargepsychiatrichospitalDevelopedsymptomsofheadachesmemoryproblemsCystin3rdventricledrained torelievepressurecausingsymptomscannulainsertedthroughdorsalsurface ofbrainthroughcorpuscallosumpartof brainstemGoodrecoveryheadachesdisappearedmemoryimproved returnedtoworksomememorydifficultiesButhands werenotworkingtogetherintermanualconflictsurgeoncutpartofCorpuscallosumseveringtheconnectionslinkingthehandsinthe2hemispheresCannulacommingdowngoesthroughcorpuscallosumtalsohastogothroughfornixpartoflimbicsystemmightbewhyhe'shavingmemoryissuesPplwhohavehad todrain3rdventricleonlyseepersistentmemoryissueswhentheyhavebilateraldamage1Interruptionoffornixhaveanterogradememorydeficitstossabilitytoformnew memories17.1DisconnectingCognitiveFunctions1Anatomicallydefinedcorticallobeseachengageinawiderangeofcognitiveactivitesex temporallobemainlyvisionauditionbutalsomemorylanguagetemotion2 Corticallobesengageindiffcognitiveactivitybutalsooverlapinfunction
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DisconnectionscuttingofcerebralconnectionsDisconnectionsyndromebehaviouraleffectsofdisconnectionsJohnDowner'sExperimentwMonkeys
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