Time course of word identification and semantic integration in spoken language.
Time course of word identification and semantic integration in spoken language.
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口语中的词识别和语义整合的时间过程。
DOI：
10.1037//0278-7393.25.2.394
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Parks,M
中科院分区：
文献类型：
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作者：
VanPetten,C;Coulson,S;Rubin,S;Plante,E;Parks,M
识别一组口语单词所需的最小持续时间信号是由门控技术建立的;大多数单词可以在它们的声学偏移之前被识别。门控词被用来作为一致和不一致的句子完成，并在门控实验中建立的隔离点进行了比较，与事件相关脑电位中明显的语义整合的时间过程。差分N400响应上下文适当和不适当的话，观察隔离点前约200毫秒。在声学信号足以唯一地识别单词之前，语义处理是明显的。结果表明，语义整合可以开始运作，只有部分，不完整的信息，词的身份。语义约束，词频和呈现率的影响进行了描述。
The minimum duration signal necessary to identify a set of spoken words was established by the gating technique; most words could be identified before their acoustic offset. Gated words were used as congruous and incongruous sentence completions, and isolation points established in the gating experiment were compared with the time course of semantic integration evident in event-related brain potentials. Differential N400 responses to contextually appropriate and inappropriate words were observed about 200 ms before the isolation point. Semantic processing was evident before the acoustic signal was sufficient to identify the words uniquely. Results indicate that semantic integration can begin to operate with only partial, incomplete information about word identity. Influences of semantic constraint, word frequency, and rate of presentation are described.