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1、BrainResearchBulletin71(2006)316323ElectrophysiologicalcorrelatesofvisualaffectiveprimingQinZhanga,b,AdamLawsonb,ChunyanGuoa,b,YangJiangb,∗aDepartmentofPsychology,CapitalNormalUniversity,Beijing100037,ChinabBehavioralScienceDepartment,UniversityofKentu
2、cky,113CollegeofMedicineOfficeBldg.,Lexington,KY40536-0086,USAReceived23August2005;receivedinrevisedform26September2006;accepted26September2006Availableonline26October2006AbstractThepresentstudyusedevent-relatedpotentials(ERPs)toinvestigatetheunderlying
3、neuralmechanismsofvisualaffectivepriming.EighteenyoungnativeEnglish-speakers(6males,12females)participatedinthestudy.Twosetsof720primetargetpairs(240affectivelycongruent,240affectivelyincongruent,and240neutral)usedeitherwordsorpicturesasprimesandonlywo
4、rdsastargets.ERPswererecordedfrom64scalpelectrodeswhileparticipantspressedeitherHappyorSadbuttonstoindicatetargetpleasantness.Theresponsetime(RT)resultsconfirmedanaffectiveprimingeffect,withfasterresponsestoaffectivelycongruenttrials(659ms)thanaffective
5、lyincongruenttrials(690ms).AffectivelyincongruenttrialshadlargerandmorenegativeN200activationthanthosetoneutraltrials.Importantly,adelayedN400forwordprimetargetpairsmatchedtheRTresultswithlargernegativeamplitudesforincongruentthancongruentpairs.Thisfind
6、ingsuggeststhattheN400componentisnotonlysensitivetosemanticmismatches,butisalsosensitivetoaffectivemismatchesforwordprimetargetpairs.©2006ElsevierInc.Allrightsreserved.Keywords:Valence;Semantic;EEG/ERP;Visualevaluativetask;N200;N4001.Introductionseemst
7、obemorecriticalforobtainingaffectiveprimingthanforotherformsofpriming.IntypicalaffectiveprimingstudiesPrimingreferstothephenomenonthatpreviousexperience(e.g.,[18]),apositiveornegativeprimeispresentedfor200mswithagivenstimulus(e.g.,wordorpicture)biaseso
8、ralterssub-andthenfollowedbyapositiveornegativetargetafteraninter-sequentbehavior(e.g.,fasterresponsetime,improvedaccuracy,stimulusinterval(i.e.,ISI)of100ms,resultinginastimulusorbiasedresponsetothesameorsimilarstimulus).Affectiveonseta
