语音不匹配启动了句子理解过程中失败预测的抑制控制
Jina Kim1, Jan R Wessel2,3, Kristi Hendrickson1
1Department of Communication Sciences & Disorders, University of Iowa, USA.
概括
在句子理解过程中对错误的词预测的抑制是由声学不匹配引起的,而不是语义上的不匹配. 这表明,词汇语义信息并不总是需要抑制不正确的预测.
科学领域:
- 心理语言学 心理语言学
- 认知神经科学 认知神经科学
- 语言处理语言处理.
背景情况:
- 在句子理解过程中,错误的预测很常见.
- 抑制机制抑制这些错误的预测在受约束的句子.
- 这种抑制的特定触发因素仍然不清楚.
研究的目的:
- 调查在句子理解过程中抑制预测单词的触发因素.
- 为了确定语音或语义不匹配是否引起抑制.
主要方法:
- 交叉模式的词汇原始化范式与单语言英语说话者.
- 视觉词汇决策任务 (LDT) 在听觉句子刺激之后.
- 实验1:语音上的不匹配 (伪词);实验2:语义上的不匹配 (环境声音).
主要成果:
- 对预测词的词汇决策任务反应时间 (RTs) 在伪词 (语音不匹配) 后显著较慢.
- 在环境声音 (语义不匹配) 后,对预测单词的RT没有显著差异.
结论:
- 语音信息,但不一定是语义信息,可以触发错误预测的抑制.
- 词语语义信息可能不需要激活预测抑制的抑制机制.
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