Effects of semantic discrimination of Chinese words on N400 component of event-related potentials

被引：19
|
作者：
Luo, YJ
Hu, SQ
Weng, XC
Wei, JH
机构：
[1] Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100864, Peoples R China
[2] Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100864, Peoples R China
来源：
PERCEPTUAL AND MOTOR SKILLS | 1999年 / 89卷 / 01期
关键词：
D O I：
10.2466/PMS.89.5.185-193
中图分类号：
B84 [心理学];
学科分类号：
04 ; 0402 ;
摘要：
20 subjects' event-related brain potentials ii ere measured during a lexical decision task in which Chinese characters were used in both conditions of related (antonym) and unrelated words. Analysis indicated that the mean reaction time for unrelated words was 130 msec. longer than that elicited by related words. The condition of unrelated words elicited a significant N450, and an obvious P500 was evoked by related words at each of the 17 recording sites. Furthermore, the amplitudes of N210 and N450 were larger in the left hemisphere than in the right hemisphere but the amplitude of P500 was larger in the right hemisphere than in the left hemisphere.
引用
收藏
页码：185 / 193
页数：9
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