行为结合神经动力学是所有你需要捕捉运动纠正
Nina Kudryashova1, Cole Hurwitz2, Matthew G Perich3,4
1School of Informatics, University of Edinburgh; Informatics Forum, 10 Crichton St, Newington, Edinburgh EH8 9AB, United Kingdom.
bioRxiv : the preprint server for biology
|April 8, 2025
概括
新的研究揭示了大脑如何通过感官反来纠正运动. 行为结合神经动力学 (BAND) 模型捕捉了神经活动中的这些意外调整,改善了我们对运动控制的理解.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
- 发动机控制器的控制器
背景情况:
- 运动皮质活动的特点是潜伏的神经群体动态,准备性活动解释了运动变化.
- 预备活动本身无法解释由感官反引导的实时运动校正.
研究的目的:
- 为了研究感官反如何影响运动皮质活动在计划外的运动调整期间.
- 开发一种新的计算模型,用于分析计划和计划外运动期间的神经动态.
主要方法:
- 介绍了行为结合神经动力学 (BAND) 模型,利用半监督学习.
- 分析神经群体轨迹及其在运动执行过程中的偏差.
- 与无监督推断方法对比BAND的能力.
主要成果:
- 感官引导的运动纠正表现为自主神经轨迹的暂时偏差.
- 这些纠正动态往往是微妙的,被编码在小的神经变化中.
- 主要运动皮层 (M1) 神经元的一个稀疏的子群体参与编码运动纠正.
- 该BAND模型成功地捕获了计划的运动轨迹和计划外的纠正.
结论:
- 将潜在动态建模与行为监督相结合,对于全面了解运动控制至关重要.
- BAND模型为剖析适应性运动行为的基础的神经机制提供了一个强大的工具.
- 神经可变性和稀疏编码在实时运动调整中起着重要作用.
相关概念视频
Time-Domain Interpretation of PD Control
74
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
Consider the example of control of motor torque. Initially, a positive...
74
Behavior Modification
106
Behavioral approaches have often been criticized for ignoring mental processes and focusing solely on observable behavior. However, these approaches provide an optimistic perspective for individuals seeking to change their behaviors. Rather than concentrating on intrinsic personality traits, behavioral approaches suggest that even longstanding habits can be modified by changing the reward contingencies that maintain them.
A real-world application of operant conditioning principles is applied...
A real-world application of operant conditioning principles is applied...
106
Hierarchy of Motor Control
2.3K
The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
2.3K


