• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Cognitive Neuroscience >The Influence of Semantic and Syntactic Context Constraints on Lexical Selection and Integration in Spoken-Word Comprehension as Revealed by ERPs
【24h】

The Influence of Semantic and Syntactic Context Constraints on Lexical Selection and Integration in Spoken-Word Comprehension as Revealed by ERPs

机译：语义和句法语境限制对ERP所揭示的口语理解中词汇选择和整合的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An event-related brain potential experiment was carried out to investigate the influence of semantic and syntactic context constraints on lexical selection and integration in spoken-word comprehension. Subjects were presented with constraining spoken sentences that contained a critical word that was either (a) congruent, (b) semantically and syntactically incongruent, but beginning with the same initial phonemes as the congruent critical word, or (c) semantically and syntactically incongruent, beginning with phonemes that differed from the congruent critical word. Relative to the congruent condition, an N200 effect reflecting difficulty in the lexical selection process was obtained in the semantically and syntactically incongruent condition where word onset differed from that of the congruent critical word. Both incongruent conditions elicited a large N400 followed by a left anterior negativity (LAN) time-locked to the moment of word category violation and a P600 effect. These results would best fit within a cascaded model of spoken-word processing, proclaiming an optimal use of contextual information during spoken-word identification by allowing for semantic and syntactic processing to take place in parallel after bottom-up activation of a set of candidates, and lexical integration to proceed with a limited number of candidates that still match the acoustic input.
机译：进行了一项与事件相关的脑潜能实验，以研究语义和句法语境限制对口语理解中词汇选择和整合的影响。为受试对象提供了具有约束力的口头句子，其中包含一个（a）一致，（b）在语义和句法上不一致的，但与该一致的评判词相同的初始音素或（c）在语义和句法上不一致的，从与全称关键词不同的音素开始。相对于全等条件，在词与非全等关键词在语义和句法上不一致的条件下，获得了反映词汇选择过程中困难的N200效果。两种不一致的情况都会引发一个大的N400，然后左前负（LAN）锁定到违反单词类别的时刻并产生P600效果。这些结果最适合于口语处理的级联模型，通过允许自下而上激活一组候选者后并行进行语义和句法处理，从而在口语识别过程中宣告了上下文信息的最佳使用，和词汇整合，以继续与声学输入匹配的有限候选数。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号