当抽象变得具体时,大脑中的概念自然编码
Viktor Nikolaus Kewenig1, Gabriella Vigliocco1, Jeremy I Skipper1
1Experimental Psychology, University College London, London, United Kingdom.
eLife
|December 5, 2024
概括
大脑对抽象和具体概念的反应随着视觉上下文的动态变化而变化. 概念处理不是固定的,而是适应现实世界的多式联络信息,影响神经生物学组织.
科学领域:
- 认知神经科学 认知神经科学
- 心理语言学 心理语言学
- 语言的神经生物学 语言的神经生物学
背景情况:
- 了解大脑如何在自然环境中编码单词含义至关重要.
- 现实世界语言处理涉及将语音与丰富的视觉信息整合在一起.
- 抽象与具体概念的动态神经表示在很大程度上仍然是未知的.
研究的目的:
- 在自然主义的电影观看中调查具体和抽象概念的表达结构.
- 确定视觉背景如何动态地影响大脑对概念信息的反应.
- 探索多模式环境中概念编码的神经生物学基础.
主要方法:
- 在电影观看期间进行功能磁共振成像 (fMRI).
- 分析与具体和抽象概念相关的大脑活动模式.
- 通过不同层次的上下文相关性来比较神经反应.
主要成果:
- 具体和抽象的概念最初会根据经验激活不同的大脑区域.
- 当考虑多式联络视觉背景时,这些独特的模式汇聚在一起.
- 在相关的视觉场景中处理的抽象单词显示出更具具体性的大脑活动,反之亦然.
结论:
- 概念表征不是静态的,而是由情境信息动态地塑造出来的.
- 神经生物学的概念组织根据单词含义和视觉环境的相互作用而适应.
- 这表明在自然条件下进行概念处理的灵活系统.
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