Right hemisphere sensitivity to word- and sentence-level context: Evidence from event-related brain potentials
Right hemisphere sensitivity to word- and sentence-level context: Evidence from event-related brain potentials
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DOI：
10.1037/0278-7393.31.1.129
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发表时间：
2005-01-01
影响因子：
2.6
通讯作者：
Kutas, M
中科院分区：
文献类型：
--
作者：
Coulson, S;Federmeier, KD;Kutas, M
研究人员使用偏侧刺激表明，左半球是敏感的词汇水平的上下文，而右半球（RH）主要处理单词水平的意义。作者通过测量事件相关脑电位（ERP）的联想启动来研究这个消息盲RH模型。对于孤立的词对，关联词引起更多的积极ERPs比无关联的词具有相似的幅度和发病lavery在两个视野。嵌入在句子中，这些相同的对在两个领域都表现出很大的连续上下文效应。小的影响，协会进行了观察，仅限于不一致的句子后，右视觉hemifield介绍，但目前的一致和不一致的句子后，左视觉hemifield介绍。结果不支持的消息盲RH模型，但建议半球的不对称使用的单词和句子的上下文中的实时处理。
Researchers using lateralized stimuli have suggested that the left hemisphere is sensitive to sentence-level context, whereas the right hemisphere (RH) primarily processes word-level meaning. The authors investigated this message-blind RH model by measuring associative priming with event-related brain potentials (ERPs). For word pairs in isolation, associated words elicited more positive ERPs than unassociated words with similar magnitudes and onset latencies in both visual fields. Embedded in sentences, these same pairs showed large sentential context effects in both fields. Small effects of association were observed, confined to incongruous sentences after right visual hemifield presentation but present for both congruous and incongruous sentences after left visual hemifield presentation. Results do not support the message-blind RH model but do suggest hemispheric asymmetries in the use of word and sentence context during real-time processing.