EVENT-RELATED POTENTIAL ASYMMETRIES DURING THE READING OF SENTENCES
EVENT-RELATED POTENTIAL ASYMMETRIES DURING THE READING OF SENTENCES
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DOI：
10.1016/0013-4694(88)90131-9
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发表时间：
1988-03-01
期刊：
影响因子：
--
通讯作者：
BESSON, M
中科院分区：
文献类型：
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作者：
KUTAS, M;VANPETTEN, C;BESSON, M
本报告概述了7个不同实验中默读时记录的事件相关脑电位（ERPs）的侧向分布。单词和跨句的平均都显示了ERP的几种不对称性。在300到500毫秒之间的P1， P2和负性被发现在右半球比左半球大。我们认为这种不对称的否定性主要是由于所有实义词引发的N400的贡献。N400不对称程度不受句子呈现率和句子一致性与不一致性比例的影响，但对左撇子家族史非常敏感。相比之下，P1和P2不对称不受词汇类别和家族相似性的影响。
This report is an overview of the lateral distribution of event-related brain potentials (ERPs) recorded during silent reading in 7 different experiments. Both single word and cross-sentence averages revealed the presence of several ERP asymmetries. The P1, P2 and a negativity between 300 and 500 msec were found to be larger over the right than left hemisphere. It was argued that this asymmetric negativity was due primarily to the contribution of the N400 elicited by all content words. The degree of N400 asymmetry was unaffected either by the rate of sentence presentation or the ratio of congruent to incongruent sentences but was quite sensitive to family history of left-handedness. In contrast, the P1 and P2 asymmetries were uninfluenced by lexical class or familial sinistrality.