额头听觉皮层相互作用和感官预测在Marmoset子的声乐生产期间
Joji Tsunada1,2, Steven J Eliades3
1Chinese Institute for Brain Research, Beijing, China.
bioRxiv : the preprint server for biology
|February 14, 2024
概括
额叶皮层的信号预测在发声之前听觉皮层的抑制. 这种沟通可以通过将预期的声音与实际的听觉反进行比较来帮助完善语音输出.
科学领域:
- 神经科学是一个神经科学.
- 审计处理 审计处理
- 语音控制 控制语音控制
背景情况:
- 语音和声音控制依赖于预期和实际听觉反之间的错误计算.
- 听觉皮层在发声前和发声期间显示抑制,但对改变的反仍然敏感.
- 假设来自前额区域的自上而下的信号会导致这种听觉皮层抑制.
研究的目的:
- 调查前额叶皮层区域是否是声音发声期间听觉皮层抑制和预测信号的来源.
- 探索前额外和听觉皮层之间的神经活动和连接,先于马尔莫塞特的自我发声.
主要方法:
- 在自我发起的发声过程中,子子的听觉和额叶皮层同时进行神经记录.
- 分析多个单元活动和局部电场潜力的theta频段功率.
- 格兰杰因果关系分析以评估大脑区域之间的定向信号.
主要成果:
- 在发声开始之前,在前额和听觉皮层观察到神经活动增加.
- 额叶皮层在声声前期向听觉皮层发出有针对性的信号.
- 声前额头活动预测了听力皮层抑制和随后的发声声学.
结论:
- 额叶皮层区域在发声之前与听觉皮层进行通信.
- 额头到听觉信号可能传递感官预测信息,有助于语音错误计算.
- 这种正面 - 听力交互对于在沟通过程中提炼语音输出至关重要.
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