额叶皮层的拉动态在运动规划期间在多个时间尺度上展开
Rifqi O Affan1, Ian M Bright2, Luke N Pemberton2
1Graduate Program in Neuroscience, Boston University, Boston, Massachusetts, United States.
Journal of neurophysiology
|January 17, 2025
概括
鼠标前部运动皮层中的神经回路在运动规划过程中表现出多样化的升级活动. 这种时间异质性允许在多个时间尺度上精确编码运动计划和时间.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
背景情况:
- 神经回路为记忆和行为编码时间信息.
- 参与运动规划的神经回路的时间动态尚不清楚.
研究的目的:
- 在运动规划过程中调查小鼠前额运动皮质中神经元活动的时间动态.
- 为了确定参与计划的神经电路是否表现出与记忆电路相似的时间动态.
主要方法:
- 来自小鼠前额运动皮层的公开可用的神经元活动数据的分析.
- 检查在运动执行之前的延迟间隔期间的单个神经元发射模式和集体神经活动.
- 解码分析以评估基于神经活动的时间预测的精度.
主要成果:
- 额头运动皮层中的单个神经元在运动计划延迟间隔期间表现出多样化的升级活动.
- 这些神经元的集体活动使得随着运动的临近,越来越精确的时间预测成为可能.
- 一系列的编码模式,从稳定到动态,从这种时间多样性中出现.
- 拉活动发生在多个时间尺度上,表明时间异质性.
结论:
- 前额运动皮质在运动规划过程中表现出神经元发射的时间异质性.
- 这种异质性支持移动计划和时间的精确和可靠编码.
- 共享的神经机制可能会处理时间信息,用于过去的记忆和未来的计划.
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