不同效价情绪面孔阈下情绪启动效应的事件相关电位erp分析

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1、不同效价情绪面孔闪下情绪启动效应的ERP研究ABSTRACTSubliminalAffectivePrimingEffeetbyFaeesWithDifferentValenee:evideneefromevent一relatedPotentialsThebrainreceivestensofmillionsofinPutswithdifferentlevelsofemotionalO犷UIthemuneonseiously.signifieanee.However，weexPerieneeth

2、emajority0l(lNevertheless，theseinPutscansignifieantlyinflueneebehavior.StudiesinsubliminalaffeetivePriminghavefoundthatthesubliminaleffeet15veryPowerful.Subliminalaffective如minghastwodifferenimeanings:(l)FirstmeaningreferstothePhenomenonwheresublimin

3、alPresentationofaPrimeobjectshiftssubsequentaffeetiveevaluationofthesuPraliminalobjectintheaffeetivedireetionofthePrimeobjeet.(2)SecondmeaningreferstothePhenomenonoecurswhentheProcessingofaPositivestimulus(e.g.，love)15fasterandmoreaecuratewhenit15Pre

4、eededbyaPositivestimulus(e.g.，sunshine)ratherthananegativestimulus(e.g.，death).Inthisstudy，thedimensionofarousalwaseontrolledandtwogrouPsofPositiveandnegativefaeeswereseleetedasPrimingstimuli.Behavioralanalyseswereeolnbinedwithreeordingsofevent一relat

5、edPotential(E即)toinvestigatetheneuralmeehanismsofthetwodi月笼rentkindsofsubliminalaffeetivePrimingeffect.ThefirstkindofsubliminalaffectivePrimingwasstudiedt】lroughexPerimentlbyrecordingERPtoambiguousneutralfaeesPreeededbysubliminalPresentedPositiveorne

6、gativePrimefaees.BehavioralresultsshowedthatPositiveandnegativePrimefaeesledtovalanee一eonsistentbiasesinaffeetivejudglllentsofambigUousneutralfaees.ERPdatashowedthatsubliminalPrimesdifferentiallyinflueneedanteriorN100，N300andPosteriorP17OPotentials，w

7、ithlargeramPlitudesinnegativePrimingtrials.TheseresultssuPPorttheeonelusionthattheearlyPercePtualanalysisofobjeets，aswellasevaluationandseleetionofobjeets，15affeetedbysublil二inalaffeetiveinformation.SoureinganalysisshowedthatP170Potentialsmightbegene

8、ratedfromthefusiformgyrus.11!不同效价情绪面孔闽下情绪启动效应的ERP研究ExPeriment2investigatedtheseeondkindofSubliminalaffeetivePriming.ThestudyusedPositiveornegativefaeesasobjeetsPreeededbysubliminalPresentedPositiveornegativePrimefaces.Behavioralresultseonfirmedtheaff