308-听不懂外语是大脑缺了什么

本研究深入探究了人类颞上回（STG）如何处理语音，旨在区分独立于语言经验的普遍机制和依赖于学习的特定语言机制。通过对单语和双语参与者进行高密度皮层电图（ECoG）记录，研究人员发现STG对母语和外语均表现出相似的总体活动，并且一致地编码了共享的声学-语音特征。然而，只有在听母语时，STG才显示出对更高级别语言结构信息的显著增强编码，包括词边界、词频和特定于语言的音序统计信息。在双语者中，这种强大的词汇和序列信息编码则体现在所有熟悉的语言中，且使用相同的神经元群体。这些结果表明，语言经验会动态地影响STG的功能，显著增强大脑将连续语流分割成词汇的能力，以弥补纯粹声学信号的不足。References:* Bhaya-Grossman I, Leonard M K, Zhang Y, et al. Shared and language-specific phonological proce...去小宇宙查看完整单集简介前往小宇宙评论区与主播互动

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308-听不懂外语是大脑缺了什么

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