Inthisstudy,weinvestigatedthecombinedeffectoftranscranialdirectcurrentstimulation(tDCS)andanintensiveConversationaltherapytreatmentondiscourseskillsin12personswithchronicaphasia.Sixshortvideoclipsdepictingeverydaylifecontextswereprepared.Threevideoclipswereusedtoelicitspontaneousconversationduringtreatment.Theremainingthreewerepresentedonlybeforeandafterthetherapy.ParticipantswerepromptedtotalkaboutthecontentsofeachvideoclipwhilestimulatedwithtDCS(20min1mA)overthelefthemisphereinthreeconditions:anodictDCSovertheBroca’sarea,anodictDCSovertheWernicke’sarea,andashamcondition.Eachexperimentalconditionwasperformedfor10consecutivedailysessionswith14daysofintersessioninterval.AfterstimulationoverBroca’sarea,theparticipantsproducedmoreContentUnits,verbsandsentencesthanintheremainingtwoconditions.Importantly,thisimprovementwasstilldetectable1monthaftertheendoftreatmentanditseffectsweregeneralizedalsotothethreevideoclipsthathadbeenadministeredatthebeginningandattheendofthetherapysessions.Inconclusion,anodictDCSappliedovertheleftBroca’sareatogetherwithanintensive“ConversationalTherapy”treatmentimprovesinformativespeechinpersonswithchronicaphasia.WebelievethatpositivetDCSeffectsmaybefurtherextendedtootherlanguagedomains,suchastherecoveryofspeechproduction.

tDCS over the left inferior frontal cortex improves speech production in aphasia

MARINI, Andrea
2013-01-01

Abstract

Inthisstudy,weinvestigatedthecombinedeffectoftranscranialdirectcurrentstimulation(tDCS)andanintensiveConversationaltherapytreatmentondiscourseskillsin12personswithchronicaphasia.Sixshortvideoclipsdepictingeverydaylifecontextswereprepared.Threevideoclipswereusedtoelicitspontaneousconversationduringtreatment.Theremainingthreewerepresentedonlybeforeandafterthetherapy.ParticipantswerepromptedtotalkaboutthecontentsofeachvideoclipwhilestimulatedwithtDCS(20min1mA)overthelefthemisphereinthreeconditions:anodictDCSovertheBroca’sarea,anodictDCSovertheWernicke’sarea,andashamcondition.Eachexperimentalconditionwasperformedfor10consecutivedailysessionswith14daysofintersessioninterval.AfterstimulationoverBroca’sarea,theparticipantsproducedmoreContentUnits,verbsandsentencesthanintheremainingtwoconditions.Importantly,thisimprovementwasstilldetectable1monthaftertheendoftreatmentanditseffectsweregeneralizedalsotothethreevideoclipsthathadbeenadministeredatthebeginningandattheendofthetherapysessions.Inconclusion,anodictDCSappliedovertheleftBroca’sareatogetherwithanintensive“ConversationalTherapy”treatmentimprovesinformativespeechinpersonswithchronicaphasia.WebelievethatpositivetDCSeffectsmaybefurtherextendedtootherlanguagedomains,suchastherecoveryofspeechproduction.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/876264
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