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1、DecodingHumorExperiencesfromBrainActivityofPeopleViewingComedyMoviesYasuhitoSawahata,*KazuteruKomine,ToshiyaMorita,andNobuyukiHirumaMasahikoSumitani,EditorScienceandTechnologyResearchLaboratories,NHK(JapanBroadcastingCorporation),Setagaya,Tokyo,JapanTheUniversityofTok
2、yoHospital,Japan*E-mail:sawahata.y-jq@nhk.or.jpCompetingInterests:Theauthorshavedeclaredthatnocompetinginterestsexist.Conceivedanddesignedtheexperiments:YSKKTMNH.Performedtheexperiments:YSKKTM.Analyzedthedata:YS.Contributedreagents/materials/analysistools:YSKKTM.Wrote
3、thepaper:YSKKNH.Authorinformation►Articlenotes►CopyrightandLicenseinformation►ReceivedMay9,2013;AcceptedOctober9,2013.CopyrightnoticeThisisanopen-accessarticledistributedunderthetermsoftheCreativeCommonsAttributionLicense,whichpermitsunrestricteduse,distribution,andre
4、productioninanymedium,providedtheoriginalauthorandsourcearecredited.Goto:AbstractHumansnaturallyhaveasenseofhumor.Experiencinghumornotonlyencouragessocialinteractions,butalsoproducespositivephysiologicaleffectsonthehumanbody,suchasloweringbloodpressure.Recentneuro-ima
5、gingstudieshaveshownevidencefordistinctmentalstatechangesatworkinpeopleexperiencinghumor.However,thetemporalcharacteristicsofthesechangesremainelusive.Inthispaper,weobjectivelymeasuredhumor-relatedmentalstatesfromsingle-trialfunctionalmagneticresonanceimaging(fMRI)dat
6、aobtainedwhilesubjectsviewedcomedyTVprograms.MeasuredfMRIdatawerelabeledonthebasisofthelagbeforeoraftertheviewer’sperceptionofhumor(humoronset)determinedbytheviewer-reportedhumorexperiencesduringthefMRIscans.Wetrainedmultiplebinaryclassifiers,ordecoders,todistinguishb
7、etweenfMRIdataobtainedateachlagfromonesobtainedduringaneutralstateinwhichsubjectswerenotexperiencinghumor.Asaresult,intherightdorsolateralprefrontalcortexandtherighttemporalarea,thedecodersshowedsignificantclassificationaccuraciesevenattwosecondsaheadofthehumoronsets.
8、Furthermore,givenatimeseriesoffMRIdataobtainedduringmovieviewing,wefoundthatthedecoderswithsignificantperformancewerealsoabl
