在多人说话的情况下,见和掩饰语音的明显神经编码
Vinay S Raghavan1,2, James O'Sullivan1,2, Stephan Bickel3,4,5
1Department of Electrical Engineering, Columbia University, New York, New York, United States of America.
PLoS biology
|June 6, 2023
概括
人类在语音上处理见的语音,即使是背景说话者. 蒙面语音的处理方式不同,这表明在杂的环境中听觉感知有不同的神经机制.
科学领域:
- 神经科学是一个神经科学.
- 听觉感知是一种听觉感知.
- 语音处理 语音处理
背景情况:
- 人类可以在背景语言中选择性地关注一个演讲者.
- 在多语者环境中,尤其是面具语音中,语言感知背后的神经机制尚未完全被理解.
- 现有的模型建议"眼"或"恢复"的口罩区域的语音感知.
研究的目的:
- 为了研究大脑如何编码见和掩饰的语言.
- 为了确定目标与非目标语言在多语者环境中的神经处理.
- 为语言感知模型提供神经证据.
主要方法:
- 在神经外科患者中,从听觉皮层 (AC) 直接记录神经活动.
- 训练时间响应函数模型来预测高马神经活动.
- 从见和掩饰的语音刺激中分析语音特征的神经编码.
主要成果:
- 眼语,包括非目标说话者,在语音层面上被编码.
- 目标语音在非初级听觉皮层中显示了增强的语音编码.
- 蒙面的语音特征仅为目标说话者编码,具有延迟延迟和独特的神经组织.
结论:
- 存在着独立的神经机制来处理见和掩饰的语言.
- 这些发现支持了语音感知的"眼"模型.
- 神经证据区分了可听和隐藏的语音组件的处理.
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