前馈
计算机科学
电动机控制
神经科学
控制(管理)
运动(音乐)
动力学(音乐)
集合(抽象数据类型)
内部模型
控制理论(社会学)
心理学
人工智能
控制工程
工程类
美学
哲学
程序设计语言
教育学
作者
Ta-Chu Kao,Mahdieh S. Sadabadi,Guillaume Hennequin
出处
期刊:Neuron
[Elsevier]
日期:2021-05-01
卷期号:109 (9): 1567-1581.e12
被引量:45
标识
DOI:10.1016/j.neuron.2021.03.009
摘要
Across a range of motor and cognitive tasks, cortical activity can be accurately described by low-dimensional dynamics unfolding from specific initial conditions on every trial. These “preparatory states” largely determine the subsequent evolution of both neural activity and behavior, and their importance raises questions regarding how they are, or ought to be, set. Here, we formulate motor preparation as optimal anticipatory control of future movements and show that the solution requires a form of internal feedback control of cortical circuit dynamics. In contrast to a simple feedforward strategy, feedback control enables fast movement preparation by selectively controlling the cortical state in the small subspace that matters for the upcoming movement. Feedback but not feedforward control explains the orthogonality between preparatory and movement activity observed in reaching monkeys. We propose a circuit model in which optimal preparatory control is implemented as a thalamo-cortical loop gated by the basal ganglia.
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