揭示了书面和口语编码神经群体在视觉文字形式区域的共存
Shuai Wang1,2, Anne-Sophie Dubarry3, Valérie Chanoine1,2
1Aix Marseille University, CNRS, LPL, Aix-en-Provence, France.
Imaging neuroscience (Cambridge, Mass.)
|August 13, 2025
概括
大脑中的视觉文字形式区域 (VWFA) 处理文字和口语. 在VWFA中的不同神经群体能够实现这种双重功能,帮助阅读获取.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 心理语言学 心理语言学
背景情况:
- 阅读包括将书面符号映射到语音中.
- 视觉文字形式区域 (VWFA) 位于左腹尾皮质,对于阅读至关重要.
- 尽管VWFA在视觉语言识别中的作用很大,但它对语音的反应却引发了关于它的神经表征的问题.
研究的目的:
- 调查VWFA中神经表示的性质.
- 了解VWFA对视觉和听觉刺激的交叉模式反应背后的机制.
- 为了确定VWFA内的不同神经群体是否编码书面和口语.
主要方法:
- 进行了fMRI和sEEG实验.
- 应用了内部和跨模式重复抑制效应 (RSEs) 的细粒度分析.
- 使用多声模式分析 (MVPA) 来解码神经模式.
主要成果:
- 在视觉和听觉条件下观察到显著的重复抑制效应 (RSEs).
- 在书面语言和口语语言中,成功地解码了神经模式.
- 不同分析方法的融合证据支持了这些发现.
结论:
- 在VWFA中的神经元群体明显编码书面和口语.
- 这种功能组织使VWFA能够响应视觉和听觉语言输入.
- 这些发现表明,大脑本质上是为获得阅读等复杂能力做好准备的.
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