在语言处理中的功能和结构性大脑不对称性
Patrick C Trettenbrein1, Angela D Friederici2
1Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; International Max Planck Research School on Neuroscience of Communication: Structure, Function, and Plasticity (IMPRS NeuroCom), Leipzig, Germany; Experimental Sign Language Laboratory (SignLab), Department of German Philology, University of Göttingen, Göttingen, Germany.
语言处理显示左半球占主导地位,但也有一些双边功能,特别是意义和声音. 核心左半球网络对于语法至关重要,它支持语言的演变.
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:
- 语言向左半球的横向化是生物不对称的经典例子.
- 左半球的损伤不会导致完全失去语言,这表明神经系统有复杂的组织.
研究的目的:
- 对各种语言方面审查神经基质的功能和结构侧面化.
- 在语言处理中探索两个半球的均等潜力.
主要方法:
- 审查近几十年的神经成像研究结果.
- 语言网络中的功能和结构不对称性的分析.
主要成果:
- 大多数语言处理方面在功能上是向成年人左半球侧向的.
- 这两个半球表现出对处理意义和声音的同等能力.
- 左半球的核心语言网络对语法至关重要,并显示功能/结构不对称.
结论:
- 语言能力及其神经基础不是单一的.
- 左半球核心语言网络对语法至关重要,受遗传影响,可能是人类语言进化的先决条件.
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