对自我产生声音的听觉皮层反应的体感影响
Nozomi Endo1, Coriandre Vilain2, Kimitaka Nakazawa1
1Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1, Komaba, Meguro-ku, Tokyo, 153-8902, Japan.
Neuropsychologia
|February 28, 2025
概括
来自触摸的体感输入可以改变大脑如何处理自我生成的声音. 这项研究发现,在声音产生过程中变化的物体刚度改变了听觉反应,这表明了动作和感知之间的联系.
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.
- 身体感官系统 身体感官系统
背景情况:
- 运动执行通常会减弱皮质对自我生成的声音的反应,通常归因于运动处理.
- 同时的体感反在调节自我生成声音的听觉处理中的作用仍然不太清楚.
研究的目的:
- 调查体感输入如何影响自我生成声音的听觉处理.
- 为了确定不同的触觉反 (物体刚度) 是否会影响听觉衰减.
主要方法:
- 听觉事件相关潜能 (ERP) 被记录在一个触觉机器人设备上的手指运动产生的声音的响应.
- 虚拟对象的刚度被操纵 (低和高) 来调节体感官输入.
- 为了比较,使用计算机键盘的控制条件被包括在内.
主要成果:
- 听觉N1减弱与虚拟对象的性有所不同;低性模仿键盘诱导的减弱,而高性则没有.
- 在硬度条件下,P2减弱没有显著差异.
- 在200ms之后的听觉ERP波形显示出基于刚度条件的差异,N1减弱源局部位于右侧面区域.
结论:
- 运动期间的体感反显著改变了自我产生的声音的听觉处理.
- 这些发现支持了自我引用处理,体现认知和听觉处理中的行动感知机制的理论.
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