文档介绍：面孔容颜信息加工的事件相关电位时空模式研究
作者:罗一峰,周曙,尹恝,吕田明,陆兵勋,刘玲,周宏珍,安红伟
【摘要】目的::志愿受试者34名参与,以另外23名评估吸引力程度即容颜美丽程度分类的面孔照片作刺激,面孔性别识别为任务,记录的多导事件相关电位经重复测量方差分析(吸引力高、中、低)和配对t检验绘制统计参数映象(SPM).结果:动态SPM显示不同面孔吸引力所诱发的电活动于右额前区域刺激后60~~~:大脑对面孔容颜的认知可能经历早期粗分类加工、粗分类后重新评估及晚期与语言表达有关的加工.
【关键词】面部;事件相关电位;统计参数映象
【Abstract】AIM:Toinvestigatetheneuralmechanismunderlyingfacialbeautywitheventrelatedpotentials(ERPs).METHODS:Thirtyfourparticipantstooktaskofgenderdiscriminationonfacialstimuli,way(attractiveness:high/median/low)ANOVAofrepeated
measurewasperformedbeforepost(SPM)wasinterpolatedwithbothFvalueandt:DynamicSPMshowedthatbothattractiveandunattractivefaceswereprocessedtogetherassalientfeaturesinrightfrontalarea(60-100ms).Thedifferentiationbetweenthetwoinvolvedtherightparietalandleftfrontalareas(140-240ms).Attractivefaceselicitedpositiveeffectsviatheactivationofleftandmidlinefrontalareas(340-380ms).CONCLUSION:Facialbeautyprocessinginhumanbrainmayincludetheearlycoarsecategorization,thefollowingreevaluation,andthenextprocessingrelatedtolanguagedescription.
【Keywords】Face;Eventrelatedpotentials(ERPs);Statisticalparametricmapping(SPM)
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