人类皮质的语音诱导抑制和语音反敏感性
Muge Ozker1,2, Leyao Yu1,3, Patricia Dugan1
1Neurology Department, New York University, New York, 10016, NY, USA.
bioRxiv : the preprint server for biology
|February 19, 2024
概括
听觉皮层中的神经反应在语音过程中被抑制,以增强听觉反的灵敏度,帮助检测发音错误. 这项研究证实了人类的这种联系,对于语音监控至关重要.
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.
- 语音制作 语音制作
背景情况:
- 在不同物种的发声过程中,听觉皮层的神经反应被抑制.
- 假设这种抑制可以增加对用于错误检测的听觉反的灵敏度.
- 以前在非人类灵长类动物中的证据支持了这一点,但在人类语音监测中缺乏直接联系.
研究的目的:
- 调查在人类的言语和听觉反灵敏度期间的听觉抑制之间的关系.
- 为了确定抑郁的听觉反应的大脑区域是否也对改变的听觉反敏感.
- 探索注意力负荷在调节听觉反灵敏度中的作用.
主要方法:
- 35名神经外科参与者在发言过程中的内脑电图 (iEEG) 记录.
- 通过上旋 (STG) 进行听觉抑制的拓形状的表征.
- 延迟的听觉反 (DAF) 任务来评估对被抑制位置的反变化的敏感性.
主要成果:
- 听力抑制的地形在STG中各不相同.
- 展示听觉抑制的网站也显示了对改变的听觉反的增强反应,证实了灵敏度.
- 在听力抑制程度和反灵敏度之间发现了强烈的相关性.
- 后部STG激活在DAF期间增加,这表明注意力负载调节了反灵敏度.
结论:
- 在发声过程中听觉抑制是人类语音监测的关键机制.
- 听觉抑制的程度与对听觉反变化的敏感性直接相关.
- 注意力负荷,特别是在DAF范式中,可以调节后部STG的听觉反灵敏度.
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