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面孔识别的脑加工成分——N170的ERP研究
Brain Processing Component during Face Cognition -N170 Revealed by Event-related Potentials
查看参考文献8篇
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文摘
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目的 研究面孔识别早期加工脑成分N170，考察其是否反映面孔加工的特异性，是否反映Bruce-Young面孔认知模型中结构编码及面孔加工是否具有右半球何优势等问题。方法 16名被试者学习和再认面孔照片，记录其脑电。结果 仅半数被试者出现N170，认知任务显著影响N170波幅。结论 N170不能反映面孔的结构编码，是否反映面孔加工特异性还值得进一步研究，面孔识别加工时两半球的优势在加工速度与加工强度两个维度上各占优势，并非单纯的右脑优势。 |
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其他语种文摘
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Objective To observe features of early component N170 during face recognition. Method Scalp distribution, amplitude, and latency of N170 was recorded during face recognition tasks in 16 normal subjects. Result N170 was elicited by the face stimuli in only half of the subjects and the amplitude was modulated by cognitive tasks. Conclusion N170 reflects not only face structure encoding unit but also direct visual processing unit. Whether N170 reflects the speciality in face recognition needs further study. The latency of N170 showed left hemisphere dominance and the amplitude showed right hemisphere dominance, indicating that it is not pure right hemisphere dominance in face recognition. |
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来源
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航天医学与医学工程
,2002,15(4):303-304 【扩展库】
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关键词
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事件相关电位
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面孔识别
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半球优势
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结构编码
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地址
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1.
中国科学院心理研究所, 北京, 100101
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航天医学工程研究所, 北京, 100094
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1002-0837 |
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学科
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特种医学 |
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基金
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中国科学院“百人计划”项目
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中国科学院知识创新工程重大项目
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文献收藏号
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CSCD:1001458
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参考文献 共
8
共1页
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