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工作记忆中汉字与空间的分离及动态优势半球的ERP效应
Authors
卫星
林崇德
+3 more
王益文
罗跃嘉
魏景汉
Publication date
1 January 2004
Publisher
Abstract
测量了 14名正常青年被试在进行延迟反应任务时的事件相关脑电位 (ERP)。在刺激消失后的延迟阶段 ,汉字任务和空间任务均在头皮前部额区产生P2 6 0和晚期正成分 (LPC) ,在头皮后部顶枕区产生N15 0和晚期负成分 (LNC)。汉字任务的P2 6 0为右半球优势 ,4 0 0~ 80 0ms转化为左半球的激活程度显著大于空间任务。空间任务从P2 6 0的左右半球均衡变化为 4 0 0~ 80 0ms的右半球优势。头皮后部无显著差异。研究结果提供了工作记忆中汉字与空间信息保持的分离及其优势半球动态变化的电生理学证据
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Institutional Repository of Institute of Psychology, Chinese Academy of Sciences
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Last time updated on 30/04/2021