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, United States.
eLife
|September 10, 2024
概括
听觉皮层的神经反应在演讲过程中被抑制. 这项研究发现,人类这种听觉抑制与语音监控灵敏度相关,可能有助于错误检测.
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.
- 假设这种听觉抑制可以增强对声响反的敏感性,以检测语音错误.
- 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:
- 研究人类的听觉抑制和语音监控灵敏度之间的关系.
- 为了绘制人类听觉皮层中听觉抑制的地形.
- 为了确定被抑制的大脑区域是否对听觉反的变化敏感.
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.
- 听力抑制拓在上旋环 (STG) 的表征.
- 延迟的听觉反 (DAF) 任务来评估对听觉反变化的敏感性.
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.
- 在DAF条件下,后部STG激活增加,这表明注意力负荷调节了反灵敏度.
结论:
- 在发言过程中听觉抑制与人类的听觉反灵敏度密切相关.
- 这种抑制机制可能在人类语音监控和错误检测中发挥关键作用.
- 注意力负荷,特别是在像DAF这样的任务中,可以调节听觉皮层对语音反的敏感性.
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