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1、ORIGINALRESEARCHARTICLEpublished:12September2012doi:10.3389/fpsyg.2012.00345Taskdifficultymodulatestheimpactofemotionalstimulionneuralresponseincognitive-controlregions1,22222AgnesJ.Jasinska*,MarieYasuda,RebeccaE.Rhodes,ChengWangandThadA.Polk1MichiganInstituteforClinicalandHealthResearch,Universityof
2、Michigan,AnnArbor,MI,USA2DepartmentofPsychology,UniversityofMichigan,AnnArbor,MI,USAEditedby:BothheightenedreactivitytoemotionalstimuliandimpairedcognitivecontrolarekeyFlorinDolcos,UniversityofIllinoisataspectsofdepression,anxiety,andaddiction.Buttheimpactofemotiononcognitive-Urbana-Champaign,USAcon
3、trolprocesses,andthefactorsthatmodulatethisimpact,arestillnotwellunderstood.Reviewedby:Weexaminedtheeffectsofthreatandrewarddistractersontheneuralcorrelatesofcog-SteveMost,UniversityofDelaware,USAnitivecontrolusingfunctionalMRI(fMRI)andtheMulti-SourceInterferenceTask(MSIT).PhilippKanske,MaxPlanckIns
4、tituteBehaviorally,subjectswereslowerandlessaccurateonthemoredemandingincongruentforHumanCognitiveandBraintrialscomparedtotheeasiercongruenttrials.Inaddition,boththreatandrewarddis-Sciences,Germanytracterssignificantlyimpairedthespeedofrespondingonincongruenttrialsrelativetothe*Correspondence:no-dist
5、ractercondition.Attheneurallevel,weusedtheincongruent–congruentcontrastAgnesJ.Jasinska,NeuroimagingResearchBranch,NationalInstitutetofunctionallydefinefourcognitive-controlregionsofinterest(ROIs):anteriorcingulatecor-onDrugAbuse–IntramuralResearchtex(ACC),leftandrightinferiorfrontalgyrus(IFG)/insula,
6、andrightdorsolateralprefrontalProgram,251BayviewBlvd,cortex(DLPFC).Arepeated-measuresanalysisofvarianceontheextractedcontrastval-Baltimore,MD21224,USA.e-mail:jasinskaaj@mail.nih.govuesintheseROIsindicatedasignificantinteractionofstimulussalienceandtaskdifficultyontheneuralresponseincognitive-controlre
7、gions.Specifically,threatdistracterssignifi-cantlydecreasedtheresponseincognitive-controlregionsonincongruenttrials,whereastheysignificantlyincreasedthatresponseoncongruenttrials,relativetotheno-distract
