在任务参与期间,主要听觉皮层中的分类反应的动力学和维护
Rupesh K Chillale1,2, Shihab Shamma1,3, Srdjan Ostojic2
1Laboratoire des Systèmes Perceptifs, Département d'Études Cognitives, École Normale Supérieure, PSL University,, Paris, France.
eLife
|November 16, 2023
概括
初级听觉皮层 (A1) 通过编码声音特征和任务变量来启动声音分类. 在A1中,分类神经活动很早就出现了,即使是在被动的声音暴露期间,并且通过任务参与来调节.
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.
- 认知科学 认知科学
背景情况:
- 声音分类是关键的认知能力,它将刺激与目标导向行为联系起来.
- 初级听觉皮层 (A1) 对于处理声音特征和与任务相关的信息至关重要.
研究的目的:
- 为了研究初级听觉皮层 (A1) 在启动声音分类中的作用.
- 了解A1如何为分类听觉刺激的认知过程做出贡献.
主要方法:
- 被训练在一个涉及点击列车的Go/No-Go延迟分类任务中.
- 在A1中,神经活动在积极的行为和被动的声音暴露期间被记录.
- 分类响应组件被隔离并与感官响应分开分析.
主要成果:
- 在A1的分类活动在主动和被动状态的声音呈现过程中出现.
- 任务参与导致了No-Go类别响应的抑制,创造了不对称的表示.
- 在刺激期和延迟时期的分类反应之间发现了相关性,这表明早期的A1参与.
结论:
- 初级听觉皮层 (A1) 在声音分类中起着早期的作用.
- A1展示了由任务需求调节的分类神经表示.
- 在A1中神经活动反映了声音的感官处理和认知分类.
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