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1、心理学报2004,36(4):426～433ActaPsychologicaSinicaKnowingthatYouKnowandKnowingthatYoudon’tKnow:AfMRIStudyon3Feeling2of2Knowing(FOK)1231LuoJing,KazuhisaNiki,YingXiaoping,LuoYue2jia(1KeyLaboratoryofMentalHealth,InstituteofPsychology,ChineseAcademyofSciences,Beijing100101,China)(2NeuroscienceR
2、esearchInstitute,AIST,Tsukuba305-8568,Japan)(3UniversityofTsukuba,Tsukuba305-8568,Japan)AbstractNeuralcorrelatesoffeeling2of2knowing(FOK)wereinvestigatedbyevent2relatedfMRIandunrelatedword2pairsinastandardRecall2Judgment2Recognition(RJR)procedure.Accordingtoperformanceinpost2scancrite
3、riontest,FOKtrialswerecategorizedas”PP”(positive2FOK,positive/”hits”2recognition),”NN”(negative2FOK,negative/”misses”2recognition),”NP”(negative2FOK,negative2recognition),and”PN”(positive2FOK,negative2recognition).ContrastsbetweenaccurateFOKpredictions(PP,NN)andinaccurateones(NP,PN)re
4、vealednodifference.FurtheranalysisindicatedPPandNNweredifferent;combiningthemtogethermightconcealdifferences.Specifically,PPwasas2sociatedwithleftprefrontalactivitiesinBA8orBA47relativetoNNorNPrespectively.ThisobservationqueriedtheconventionalviewthatregardedPPandNNasthesamekindof”acc
5、urateFOKpredictions”,andcalledfordissociationsbetweenfeeling2of2knowing(PP)andfeeling2of2not2knowing(NN).Keywordsfeeling2of2knowing,event2relatedfMRI,metamemory.[2].Thetypicalversionof”trace2accessmechanism”1IntroductionproposedthatFOKwasbasedonpartialretrievalof[1]targetinformation(t
6、he”partialretrievalhypothesis”Hartstudiedfeeling2of2knowing(FOK)in[3]),whereasthetypicalversionof”inferentialmecha21965.InatypicalRecall2Judgment2Recognitionnism”proposedthatFOKwasbasedonthefamiliari2(RJR)paradigmofFOK,subjectswereaskedtoan2[4]tywiththecue(”cue2familiarityhypothesis”.
7、sweraspecificquestion(e.g.,thecapitalofacoun2However,theneuralcorrelatesofFOKisstillun2try)ortorecallthe”targetword”thathadbeenasso2known.ShimamuraandSquirefoundsubjectsofKor2ciatedwiththe”cueword”inlearningphase.Ifsub2jectsfailedtorecallthecorrectanswer,theyweresakoff’ssyndromewereim
8、paire
