An electrophysiological investigation of the effects of coreference on word repetition and synonymy
An electrophysiological investigation of the effects of coreference on word repetition and synonymy
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DOI：
10.1016/j.bandl.2005.01.001
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发表时间：
2005-08-01
影响因子：
2.5
通讯作者：
Holcomb, PJ
中科院分区：
文献类型：
--
作者：
Anderson, JE;Holcomb, PJ
在两个实验中，研究了单词重复、同义词和共指对文本处理过程中事件相关脑电位的影响。参与者阅读一篇（实验1）或两篇（实验2）批评性名词前面有定冠词（the）或不定冠词(a)的文章。实验1作为对照进行，以验证实验2第二句中文章处理的差异不会污染erp对关键名词项目的影响。他们没有。在实验2中，一个初始句子被用来建立一个语境，并包含来自第二个句子的关键词的第一个表示或同义词。重复和同义词在第二句中的启动效应为N400（后期积极成分；LPC）。这将对单词列表和单句文本的启动现象的观察扩展到两句文本。与非共指关键名词（文章“a”后面的名词）相比，共指关键名词（文章“the”后面的名词）的左前侧负性或“LAN”也更大，这表明erp对参考分配过程中参与的工作记忆过程敏感。作为对文章本身的回应，文章“a”vs.引起了更大的N400-700。“。”最后，非共指句子的最后一个词具有更大的n400样否定性，这意味着这些句子的意义难以与前一句建立的语篇层次表征相融合。(c) 2005爱思唯尔公司版权所有。
In two experiments the effects of word repetition, synonymy, and coreference on event-related brain potentials during text processing were studied. Participants read one (Experiment 1) or two sentence (Experiment 2) texts in which critical nouns were preceded by the definite (the) or indefinite (a) articles. Experiment I was run as a control to verify that differences in article processing in the second sentences of Experiment 2 would not contaminate the ERPs to critical noun items. They did not. In Experiment 2, an initial sentence was used to set up a context and contained either a first presentation or synonym of the critical word from the second sentence. N400 (but not Late Positive Component; LPC) priming effects were found for repetitions and synonyms (larger for repetitions) in second sentences. This extends observations of priming in word lists and single sentences to two-sentence texts. There was also a greater left anterior negativity or "LAN" for coreferential critical nouns (those following the article "The") compared to noncoreferential critical nouns (those following the article "A") suggesting that ERPs are sensitive to working memory processes engaged during referential assignment. In response to the articles themselves, there was a greater N400-700 elicited by the article "A" vs. "The." Finally, there was a greater N400-like negativity to the final words of non-coreferential sentences implying that the meanings of these sentences were difficult to integrate with the discourse level representation established by the prior sentence. (c) 2005 Elsevier Inc. All rights reserved.