人类言语中的一个相应的放电电路
Amirhossein Khalilian-Gourtani1, Ran Wang2, Xupeng Chen2
1Neurology Department, New York University, New York, NY 10016.
概括
科学家们确定了在人类大脑中源源流放信号的来源,这有助于区分自我发声与外部声音. 这一发现对理解语音运动控制和听觉幻觉有意义.
科学领域:
- 神经科学是一个神经科学.
- 语音运动控制 语音运动控制
- 审计处理 审计处理
背景情况:
- 大脑区分了自我产生的声音与外部声音,这种功能在动物体内得到 corolar 放电信号的支持.
- 人类冠状动脉分泌的确切起源和时间在很大程度上是未知的.
- 了解这个信号对于语音产生和听觉感知至关重要.
研究的目的:
- 为了确定神经源和时间动力学在人类的语音生产期间的尾随性放电信号.
- 为了研究尾随性放电和听觉皮层抑制之间的关系.
主要方法:
- 电皮质谱 (ECoG) 记录是从神经外科患者在语音任务期间获得的.
- 使用格兰杰因果关系的连接分析框架被用来绘制神经通信的地图.
- 为了确保可重现性,使用了多种语音制作范式.
主要成果:
- 一个可重复的源源的尾随性放电被确定在腹部语音运动皮质,之前的语音发音.
- 尾随性放电信号的强度预测了听力皮层抑制的程度.
- 这为腹部语音运动皮质在产生后果性放电方面的作用提供了直接证据.
结论:
- 这项研究揭示了人类尾随性放电源及其时间,为语音运动控制提供了关键的见解.
- 这些发现对理解精神病中听觉幻觉的神经基础具有重要意义.
- 这项工作推动了我们对大脑如何处理自我生成的听觉信息的了解.
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