A Pilot Study of Nonconscious Mimicry among Japanese University
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A Pilot Study of Nonconscious Mimicry among Japanese University
APilotStudyofNonconsciousMimicryamong JapaneseUniversityStudents: IsaSociallyUndesirableBehaviorMimicked? YohsukeOhtsubo* NaraUniversity Abstract Thepurposeofthisstudywastoexaminewhetheraculturally-undesirablebehavior (playingwithapen)wouldbelesslikelytobemimickedbyparticipantsthananeutral behavior(claspingoneshands).Sixtyparticipantstookpartintheexperiment,in whichthetypeofbehavior(undesirablevs.neutral)wasawithin-participantfactor. Duringtwoexperimentalsessions,eachparticipantinteractedwithaconfederatewho engagedinoneofthetargetbehaviors.Theresultshowedthatnonconsciousmimicry occurredonlywiththepen-playbehavior.Also,onlymalesshowedmimicryofthepenplaybehavior.Somepossiblereasonsfortheunexpectedresultsarediscussed. Recently,socialpsychologistshavebeeninterestedinthesocialfunctionsofnonconscious mimicry‐peoplesautomatictendencytoimitateotherspostures,mannerisms,facial expressions,andotherbehaviors.Recentexperimentsdemonstratedthatparticipantswho engagedinabriefinteractionwithanexperimentalconfederatetendedtomimicthe confederate'srubbingofhis/herface,shakingofhis/herfoot(Chartrand&Bargh,1999; Cheng&Chartrand,2003;vanBaaren,Maddux,Chartrand,deBouter,&vanKnippenberg, 2003),andplayingwithapen(vanBaarenetal.,2003).Suchtendencytomimicothers' mannerismsappearsmeaninglessatfirstglance.However,recentresearchhasshownthat nonconsciousmimicryhasanimportantsocialfunction(Lakin,Jefferis,Cheng,&Chartrand, 2003).InChartrandandBargh's(1999)experiment(Experiment2),forexample,each participantengagedinanexperimentaltaskwithaconfederate.Duringtheexperimental session,inoneconditiontheconfederatemimickedtheparticipant'smannerisms(mimicking condition),whileintheotherconditiontheconfederatebehavedinanon-imitativemanner (non-mimickingcondition).Thosewhowereinthemimickingconditionratedtheconfederate morelikablethanthosewhowereinthenon-mimickingcondition.Moreover,thosewhowere inthemimickingconditionfoundthattheinteractionwiththeconfederatewentmore 平 成18年9月7日 受 理*社 会 学 部 人 間 関係 学 科 助 教 授 一107一 BULLETINOFRESEARCHINSTITUTE smoothly.Somestudiesalsofoundthatbeingmimickedmakespeoplemorehelpfultoward others(vanBaaren,Holland,Kawakami,&vanKnippenberg,2004;vanBaaren,Holland, Steenaert,&vanKnippenberg,2003).Reviewingthesestudies,Lakinetal.pointoutthat nonconsciousmimicryhelpsustomaintainharmonioussocialrelationshipswithothers. Giventhesocialfunctionofnonconsciousmimicry,onemightwonderiftherearecertain typesofbehaviorsthatonemightbebettertorefrainfromimitating.Arecentstudy concerningdeceptivebehaviorsshowedthatpeopletendtotellliesmorefrequentlytoa personwhohasliedtothem(Tyler,Feldman,&Reichert,2006).Therefore,mimickinga deceptivebehaviortriggersasortofconflictspiral.Also,therearecertaintypesofbehaviors thatareconsideredunacceptableorundesirable.Onemightbedisinclinedtoimitateaperson whoisengaginginasocially-undesirablebehavior,especiallywhenotherpeopleare observingit.Inthiscase,amimickerofasocially-undesirablebehaviorisunlikelytodevelop cordialrelationshipswithobservers.Therefore,itisanticipatedthatnonconsciousmimicry willserveitssocialfunctionbetterinthepresenceofsomeinhibitorymechanismthan withoutit.Ekman(1972)showedthatJapaneseundergraduateswhowereexposedto stressfulstimuliinhibitedthemselvesfrommakingnegativefacialexpressionsinthepresence ofanauthorityfigure.Similarmechanismsmightapplytononconsciousmimicry;thatis, peoplemightrefrainfrommimickingculturally-undesirablebehaviors. Thepurposeofthisstudywastotestifaculturally-undesirablebehaviorislesslikelyto bemimickedthananeutralbehavior.Participantsofthestudyengagedinanalleged inspirationexperiment,inwhicheachparticipantwaspairedwithasame-sexconfederateand askedtoproducemanyadjectivesapplyingtogivennouns.Duringtheinspiration experiment,theconfederateeitherplayedwithapen(aculturally-undesirablebehavior)or claspedhisorherhandsontopofadesk(neutralbehavior).InJapan,playingwithapenisnot taboo,butkeepingstillisconsideredmoredesirableinsuchacontext.Therefore,playingwith apenisconsideredamoderately-undesirablebehavior.Oneofthefemaleresearchassistants whoservedasaconfederateprofessedthatshewasafraidthatparticipantswouldthinkher atomboywhensheplayedwithapen.Thestudyemployedawithin-participantdesignin whichallparticipantswereexposedtobothtypesofbehaviors.Theinspirationexperiment consistedoftwosessions,andhalfoftheparticipantswereexposedtoaconfederateplaying withapeninthefirstsession(pen-handcondition),whiletheotherhalfoftheparticipants wereexposedtoaconfederateclaspinghisorherhandsinthefirstsession(hand-pen condition).Itwasanticipatedthattheconfederatewillbemimickedmorefrequentlyby participantswhenheorsheisclaspinghisorherhandsthanwhenheorsheisplayingwith apen. 一108一 Ohtsubo:NONCONSCIOUSMIMICRY Methods ParticipantsandDesign Participantswere60undergraduates(30malesand30females)atNaraUniversity,Japan. Theywerepaid500yenfortheirparticipation.Thirtyparticipants(15malesand15females) wereassignedtothepen-handconditionandtheremainingthirtyparticipants(15malesand 15females)wereassignedtothehand-pencondition.Therewasabetween-participant condition:Halfoftheparticipantsweresupraliminallyprimedwiththeword"cooperation," whiletheotherhalfoftheparticipantsweresupraliminallyprimedwiththeword "competition ."Thisbetween-participantconditiondidnothaveanyeffectontheresultsofthis studyandwillnotbementionedfurther. Procedure Uponarrival,eachparticipantwasaskedtostayinawaitingroom.Afterarrivalofthe confederate,whoshowedupwithinafewminutesaftertheparticipant'sarrival,the experimentertooktheparticipantandtheconfederatetothelaboratory,inwhichtwochairs werearrangedinsuchawaythatthechairswerehalf-facingeachotherandhalf-facingthe experimenter'sdesk.Eachchairwasequippedwithawritingarm.Afterbeingseated,each participantfirstcompletedabriefquestionnaireaskinghisorhersexandage.This questionnairewasintroducedsothatapenwouldnecessarilybeplacedonthewritingarm. Aftercompletionofthequestionnaire,theexperimenterexplainedthenatureofthe inspirationexperiment,givinganexamplenoun,"hand,"totheparticipantandthe confederate.Theexperimenterpromptedtheconfederatetoproduceafewadjectivesto modifythenoun.Whentheconfederateproducedsomeexamples,suchas"small"and"leaf like,"theexperimenteraffirmedthattheconfederateunderstoodthetask.Afterconfirming thattheparticipantsunderstoodthetask,theexperimenterexplainedthattheparticipant andtheconfederatewouldtaketurnsinthinkingupadjectives:Firsttheparticipantwould compileadjectivesapplyingtoanounforoneminute,andthentheconfederatewouldcompile adjectivesapplyingtoadifferentnounforoneminute,andsoon.Beforestartingthe experiment,theexperimenteraskedtheparticipantandtheconfederateiftheywouldmind beingvideorecorded.Noparticipantsrefusedtoberecorded.Thevideowasmanipulatedby anexperimentassistantwhostoodbehindtheparticipantduringtheexperimentalsessionsso thattheassistantsbehaviorswerenotvisibletotheparticipant. Presentingatargetnoun,theexperimenteralwaysfirstaskedtheparticipanttoproduce asmanyadjectivesaspossiblewithinthespanofoneminute.Afteroneminutehadelapsed, theexperimenterpresentedadifferentnounandaskedtheconfederatetoproduceasmany adjectivesaspossible.Twentysecondsaftertheconfederatebeganhisorherturn,the 一109一 BULLETINOFRESEARCHINSTITUTE experimenterliftedupastopwatchtosignaltheconfederatetoengageinatargetbehavior (i.e.,playingwithapenorclaspinghisorherhands).Afteroneminutehadelapsed,the experimenterpresentedanewnounandaskedtheparticipanttoproduceasmanyadjectives foritaspossible.Duringtheparticipantsturn,theexperimentersignaledtheconfederateto stopthetargetbehavior.Afterpresentingsixnounsinthismanner,theexperimenter announcedthattheywouldhaveashortbreak.Theconfederateengagedinthetarget behaviorthreetimesduringthefirstsession,for90seconds,60seconds,and40seconds, respectively.Afterashortbreak,theexperimenterstartedthesecondsession.Theprocedure forthesecondsessionwasthesameasthatforthefirstsessionexceptthatadifferentsetof nounswasusedandthetargetbehaviorwasaltered. Aftercompletionoftheexperiment,theexperimenterexplainedfullythepurposeofthe experimentandaskedtheparticipantifheorshehadanysuspicionsabouttheexperiment. Noneoftheparticipantsreportedsuspicionsrelevanttothepurposeoftheexperiment.The participantwasthenaskedtosignaformallowingtheexperimentertousethevideo recording.Thentheparticipantwaspaidandthankedforhisorherparticipationinthestudy. Results Thevideorecordingswerecodedbyfourindependentjudgeswhowereblindtothe conditionsofparticipants.Eachvideorecordingwascodedbytwoofthejudges.Thejudges countedthenumberoftimestheparticipantclaspedhisorherhandsandplayedwithapen. Theinterraterreliabilitiesareasfollows:forthehand-claspingbehavior,.64(firstsession)and .74(secondsession),andforthepen-playbehavior,.74(firstsession)and.97(secondsession). Althoughsomeinterraterreliabilitiesareonlymoderatelyhigh,thetwojudgesalwaysagreed onwhetherornotaparticularparticipanthadengagedineachofthetargetbehaviorsatleast onceinagivensession.Thedatafromthetwojudgeswereaveragedandusedasdependent variales. Itturnedoutthatalargeportionoftheparticipantsdidnotengageineithertypeof behavior.Duringthesessioninwhichtheconfederateclaspedhisorherhandsanddidnot playwithapen,19participantsclaspedtheirhandsatleastonce,andsixparticipantsplayed withapenatleastonce.Duringthesessioninwhichtheconfederateplayedwithapenand didnotclasphisorherhands,toparticipantsplayedwithapenatleastonce,and22 participantsclaspedtheirhandsatleastonce.Therefore,distributionsofthedependent variableswerehighlypositively-skewed.Accordingly,eachdatapointwasgivenaconstant, 1.00,andthensubmittedtothelog10transformation.Twoseparate2(condition:hand-penvs. pen-hand)x2(confederatesbehavior:clasping-handsvs.pen-play)ANOVAswiththelatter 一110一 Ohtsubo:NONCONSCIOUSMIMICRY factorasrepeatedmeasureswereconductedforeachtypeofbehavior(seeFigurelfor untransformedmeans).Forthehand-claspingbehavior,amaineffectoftheconfederate's behaviorwasnotsignificant,F(1,58)=2.12,ns.Othereffectswerealsonotsignificant.Infact, participantsclaspedtheirhandsslightlymoreoftenduringthesessioninwhichthe confederatedidnotclasphisorherhands(untransformedmean=.94,SD=1.55)thanduring thesessioninwhichtheconfederateclaspedhisorherhands(untransformedmean=.58,SD =1 .19).Nonconsciousmimicrywasthusnotobservedwiththehand-claspingbehavior.For thepen-playbehavior,amaineffectofconfederate'sbehaviorwasmarginallysignificant,F(1, 58)=3.24,ρ=.08,η2=.053,andtheinteractioneffectbetweentheconditionandthe confederate'sbehaviorwasmarginallysignificant,F(1,58)=3.36,ρ=.07,η2=.055.Amain effectofconditionwasnotsignificant.Participantsplayedwithapenmorefrequentlyduring thesessioninwhichtheconfederateplayedwithapen(untransformedmean=.18,SD=.44) thanduringthesessioninwhichtheconfederatedidnotplaywithapen(untransformed mean=.13,SD=.48).Thispatternsuggeststhatnonconsciousmimicryoccurred,although theeffectwasweak.Themarginally-significantinteractioneffectwasduetothefactthatthis patternwasobservedonlyinthehand-pencondition. Closescrutinyofthepen-playdatashowedthatonlyonefemaleplayedwithapen,and shedidsothroughouttheexperiment(i.e.,inbothsessionsregardlessofwhetherthe confederateplayedwithapenornot).Thesexdifferenceinnonconsciousmimicryofthepen- playbehaviorwassignificantbyFisher'sexacttest.Nineof30malesplayedwithapenduring thesessioninwhichtheconfederateplayedwithapen,whileonlyoneof30femalesdidso. Theprobabilityofobservingthispatternbychancewas.ol.Itisnoteworthythatthiswasnot ハU 0 8 ほ 0 2 の (U 0 4 2 0欄 詫 慧 笛 も ①隻 ト 転 醤 4雛 勤o 台 器 尋 2 匹 § o謹 O 0 0 の ClaspingHandsPen-Play Participant'sE3ehavior Figure1.Meanfrequencyofeachtypeofbehaviorasafunction oftheconfederatebehavior(clasping-handsvs.pen-play). 一111一 BULLETINOFRESEARCHINSTITUTE 蛍0。40C。 酬erate癖sBehavi。r 1 $ y..0・30a §020 塁側 。 峯 α。 。 MaleFemale Figure2.Meanfrequencyofpen-playbehaviorasafunctionoftheconfederatebehavior (clasping-handsvs.pen-play)andparticipantssex. solelyduetothefactthatmalesweresimplymorepronetoplaywithapenthanwere females.Althoughtherewassuchtendency(i.e.,50f30malesplayedwithapenduringthe sessioninwhichtheconfederatedidnotplaywithapen,whileonlyoneof30femalesdidso),it wasnotsignificantbyFischer'sexacttest.Giventhesexdifferenceinnonconsciousmimicry, the2(condition)x2(confederate'sbehavior)ANOVAwasconductedincludingonlythemales' data.Themaineffectoftheconfederatesbehaviorreachedthestatisticallysignificantlevel, F(1,28)=4.65,ρ<.05,η2=.14(seeFigure2foruntransformedmeans). Discussion Theexperimentwasaimedattestingthehypothesisthatnonconsciousmimicrywould bemorefrequentlyobservedforaculturally-neutralbehavior(i.e.,hand-claspingbehavior) thanaculturally-undesirablebehavior(i.e.,pen-playbehavior).Thehand-claspingbehavior wasmorefrequentlyengagedinthanthepen-playbehavior.Ofthe60participants,24 participantsclaspedtheirhandsatleastonceduringtheexperiment,whilellparticipants playedwithapenatleastonceduringtheexperiment.Thispatternseemsconsistentwiththe assumptionthatthepen-playbehaviorwaslessculturallydesirable.Thereisaquestionasto whynonconsciousmimicrydidnotoccurwiththehand-claspingbehavior.Accordingtothe confederates,thehand-claspingbehaviorwaslessnoticeablethanthepen-playbehavior. Theybelievedthatamajorityoftheparticipantsweresoconcentratedonthetaskthatthey didnotlookattheconfederateatall.Therefore,totestthehypothesis,morenoticeabletarget behaviorsareneeded. Althoughtheoriginalhypothesiswasnottestablebecauseofthelackofnonconscious 一112一 Ohtsubo:NONCONSCIOUSMIMICRY mimicryofthehand-claspingbehavior,aninterestingpatternrelatedtothehypothesiswas observed.Therewasatendencyforfemalesnottoexhibitnonconsciousmimicryofthepenplaybehavior.Itisreasonabletoassumethataculturalnorminhibitingrudebehaviorsaffects femalesmoremarkedlythanmales.Giventhefactthatnosexdifferenceinnonconscious mimicrywasobservedinChartrandandBargh's(1999)study,bothmalesandfemalessharea predispositiontononconsciousmimicry.Perhapstheresultsofthisstudyshouldbe interpretedasillustratingthatmalesarelesssusceptibletoculturalnormsthanfemales,and thusaremorelikelytoplayoutnonconsciouslyformedbehavioralintentionevenwhenthe intendedbehaviorisperceivedasslightlyundesirableinagivencontext.Thisinterpretation isconsistentwiththebasicideaofthestudythatnonconsciousmimicryisaccompaniedby someinhibitorymechanism.However,thisevidenceisatbestindirectandweak.Moredirect demonstrationofthepresenceofsomeinhibitorymechanismofnonconsciousmimicryis needed. Thisstudyshowedarelativelylowfrequencyofnonconsciousmimicry.Thisresult seemstocontradictvanBaarenetal.'s(2003)result(Experiment3).VanBaarenetal. comparedmimickingbehaviorsofJapaneseandAmericans.Consistentwiththehypothesis thatmimickingbehaviorsaremoreprominentamongJapanese,whohaverelatively interdependentself-construals,thanamongAmericans,whohaverelativelyindependentself contruals,Japaneseparticipantsshowedagreateramountofnonconsciousmimicry.Given vanBaarenetal.'sresult,thelowfrequencyofnonconsciousmimicryinthisstudy,inwhich Japaneseundergraduatestookpart,seemspuzzling.ItisnoteworthythatvanBaarenetal.'s JapanesesamplewasdrawnfromJapanesestudentsstudyingatanAmericanuniversity,as thesestudentsmightbesomewhatdifferentfromordinaryJapanese.Also,thedifferencein theresultsmightbeattributabletosomemethodologicaldifferences.Forexample,van Baarenetal.'sarrangementmighthaveallowedparticipantstoseetheconfederatebetter thanourarrangementdid.AstudythatcloselysimulatesvanBaarenetal.'sproceduremay beworthconductinginJapaninordertoexaminefullythematterofculturalinfluenceon nonconsciousmimicry. Acknowledgment IamgratefultoKazuhiroKii,EmiNoguchi,SaoriTakeuchi,andTetsuyaYamadafor theirassistanceinconductingtheexperiment. 一113一 BULLETINOFRESEARCHINSTITUTE References Chartrand,T.L.,&Bargh,J.A.(1999).Thechameleoneffect:Theperception-behaviorlinkandsocial interaction.JournalofPersonalityandSocialPsychology,76,893-910. Cheng,C.M.,&Chartrand,T.L.(2003).Self-monitoringwithoutawareness:Usingmimicryasa nonconsciousaffiliationstrategy.JournalofPersonalityandSocia!Psychology,85,1170-1179. Ekman,P.(1972).Universalsandculturaldifferencesinfacialexpressionsofemotion.InJ.Cole(Ed.), NebraskaSymposiumonMotivation,1971(pp.207-283).Lincoln,NE,UniversityofNebraskaPress. Lakin,J.L.,Jefferis,V.E.,Cheng,C.M.,&Chartrand,T.L.(2003).Thechameleoneffectassocialglue: Evidencefortheevolutionarysignificanceofnonconsciousmimicry.JournalofNonverbalBehavior, 27,145-162. 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