皮层架构代表了对话性言语的语言层次结构
Ruhuiya Aili1, Siyuan Zhou2, Xinran Xu1
1State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, 100875, China.
NeuroImage
|March 30, 2025
概括
谈话期间的大脑活动揭示了自然对话中的语言层次结构. 这项研究探讨了大脑如何实时处理语言,显示了轮换和主题表示的共享神经模式.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 语言学的语言学.
背景情况:
- 之前的研究表明,大脑处理语言是分层的,较小的单元位于较低的区域,较大的单元位于较高的区域.
- 大多数研究都集中在单向语音上,使得双向对话中语言层次的皮质表征未被探索.
研究的目的:
- 调查语言层次结构及其皮层表现在双向对话性语言.
- 探索大脑如何实时处理自然对话.
主要方法:
- 功能近红外光谱 (fNIRS) 超扫描被用来测量两个同时交谈的人的大脑活动.
- 预先训练的语言模型 (PLM) 和表示相似性分析 (RSA) 用于分析语言结构和神经表示.
- 人际神经同步 (INS) 被评估以确定共享的大脑活动模式.
主要成果:
- 对话性语言表现出一种语言层次结构,具有边界和增量上下文效应.
- 在二分级水平上观察到语言层次的共享皮层表示.
- 在特定的大脑区域的人际神经同步 (INS) 与轮换和主题表示相关.
结论:
- 这些发现证实了不同大小的语言单元在对话中的独特性.
- 这项研究为语言层次结构及其皮层架构在自然主义对话中提供了原始证据.
- 语言处理的等级性质从单向叙事演讲延伸到双向对话演讲.
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