ERP实验设计和解释的十条准则（外）

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1、ToappearinHandy,T.C.(Ed.),Event-RelatedPotentials:AMethodsHandbookTenSimpleRulesforDesigningandInterpretingERPExperimentsStevenJ.LuckUniversityofIowaOverviewnentC1inPanelB.ThisleadstoourfirstruleofERPexperimentaldesignandinterpretation:Thischapterdiscussessomeofthec

2、entralissuesinthedesignandinterpretationofERPexperiments.ManyRule#1-Peaksandcomponentsarenotthesamedesignandinterpretationissuesareuniquetoagivencon-thing.Thereisnothingspecialaboutthepointattentarea,butmanyprinciplesapplytovirtuallyallERPwhichthevoltagereachesaloca

3、lmaximumorstudiesandthesecommonprinciplesarethefocusofthisminimum.chapter.ThechapterbeginswithadiscussionofthenatureResearchersoftenquantifyERPwaveformsbyofERPcomponents,anissuethatliesattheheartofthemeasuringtheamplitudeandlatencyofthevoltagepeaks,designandinterpre

4、tationofERPexperiments.Itthendis-eitherimplicitlyorexplicitlyassumingthatthesemeasurescussessomegeneralprinciplesofdesignandinterpretation.provideagoodmeansofassessingthemagnitudeandtim-Finally,itdiscussesasimpleandyetvexingissuethatingofaparticularlatentcomponent.T

5、hisisnotusuallyamustbeaddressedbyanyexperimentaldesign,namelythegoodassumption,anditleadstomanyerrorsininterpreta-numberoftrialspersubject.Throughoutthechapter,thetion.Strategiesforavoidingthisproblemarediscussedinmostsignificantpointsaredistilledintoasetoftensimple

6、alatersectionofthischapter.rulesfordesigningandinterpretingERPexperiments.PanelCofFigure1showsanothersetoflatentPeaksandComponentscomponentsthatalsosumtogethertoequaltheERPwave-ThetermERPcomponentreferstooneofthemostformshowninpanelA.Inthiscase,therelativelyshortimp

7、ortantbutmostnebulousconceptsinERPresearch.durationandroundedshapeofpeak2inpanelAbearslittleAnERPwaveformunambiguouslyconsistsofaseriesofresemblancetothelongdurationcomponentC2’inpanelpeaksandtroughs,butthesevoltagedeflectionsreflecttheC.Thisleadstooursecondrule:sum

8、ofseveralrelativelyindependentunderlyingorlatentRule#2-Itisimpossibletoestimatethetimecomponents.Itisextremelydifficulttoisolatethelatentc