Bcm规则允许脊髓模型学习节奏运动
Matthias Kohler1, Florian Röhrbein2, Alois Knoll3
1Department of Informatics, Technical University of Munich, Boltzmannstraße 3, 85748, Garching, Bavaria, Germany. kohler@in.tum.de.
Biological cybernetics
|August 18, 2023
概括
这项研究引入了脊髓电路的新型学习规则,使动物在没有中央模式生成器的情况下能够适应动物的运动. 这为理解电机控制灵活性提供了一个替代模型.
科学领域:
- 神经科学是一个神经科学.
- 计算生物学 计算生物学
- 生物物理学的生物物理.
背景情况:
- 中央模式生成器 (CPG) 已被广泛接受,可以通过脊髓电路控制动物的运动.
- CPG模型解释了节奏输出,但没有适应跨物种的多样化生物力学特性.
- 现有的模型缺乏脊柱电路学习各种运动模式的机制.
研究的目的:
- 提出一种可适应不同物种的运动控制的替代理论.
- 为了证明脊髓回路控制运动的学习机制.
- 调查Bienenstock-Cooper-Munro (BCM) 学习规则对运动控制的适用性.
主要方法:
- 开发了一个单层脊髓电路模型.
- 实现了用于神经适应的Bienenstock-Cooper-Munro (BCM) 学习规则.
- 使用摆形模拟来测试模型,以学习节奏和交替运动.
主要成果:
- 该BCM学习规则使脊髓模型能够学习节奏和交替运动.
- 该模型展示了自适应的运动控制,而不依赖节奏生成神经元或固定的遗传连接.
- 这表明了基于学习的运动控制灵活性机制.
结论:
- 拟议的模型为传统的中央模式生成器 (CPG) 运动理论提供了替代方案.
- 脊髓电路可以通过像BCM规则这样的自适应机制来学习控制各种运动模式.
- 这种基于学习的方法可以增强现有的CPG模型,增强它们对跨物种运动控制变异的解释能力.
相关概念视频
Major Somatic Sensory Pathways
1.0K
Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the...
1.0K
Somatic Spinal Reflexes
2.2K
Somatic spinal reflexes are rapid, involuntary muscular responses to external stimuli that involve the somatic musculature and the spinal cord.
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
2.2K
Hierarchy of Motor Control
2.9K
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.
2.9K
Indirect Motor Pathways
1.6K
The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
1.6K
Spinal Cord: Information Processing
1.4K
The spinal cord is an integral hub for motor and sensory information that enables the brain to communicate with the peripheral nervous system (PNS). This communication consists of relaying sensory data and transmission of motor commands.
Sensory Information Processing
Sensory information processing begins at the sensory receptors located in the skin and other tissues, which detect somatic sensory stimuli such as touch, temperature, or pain. These receptors function as catalysts, initiating...
Sensory Information Processing
Sensory information processing begins at the sensory receptors located in the skin and other tissues, which detect somatic sensory stimuli such as touch, temperature, or pain. These receptors function as catalysts, initiating...
1.4K
Spinal Cord
522
The spinal cord, a critical component of the central nervous system, extends from the base of the brainstem to the lumbar region of the vertebral column. It is essential for maintaining physical stability and facilitating communication between the brain and peripheral parts of the body.
522


