How and why neural and motor variation are related.
How and why neural and motor variation are related.
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DOI：
10.1016/j.conb.2015.03.008
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发表时间：
2015-08
影响因子：
5.7
通讯作者：
Medina JF
中科院分区：
文献类型：
--
作者：
Lisberger SG;Medina JF
移动是可变的。最近的研究发现，在平稳的追求眼球运动提供了一个解释运动的变化方面的组织大脑的感觉运动通路。感觉估计的变化通过感觉-运动回路传播，并最终导致运动变化。运动变异的感觉起源在感觉运动回路的每一级神经元的反应之间以及神经反应和行为反应之间产生了一次又一次的试验相关性。我们认为，运动变异是多个竞争约束之间的妥协。大脑在面对倾向于促进变化的约束时努力使运动行为“足够好”。
Movements are variable. Recent findings in smooth pursuit eye movements provide an explanation for motor variation in terms of the organization of the brain’s sensory-motor pathways. Variation in sensory estimation is propagated through sensory-motor circuits and ultimately causes motor variation. The sensory origin of motor variation creates trial-by-trial correlations among the responses of neurons at each level of the sensory motor circuit, and between neural and behavioral responses. We suggest that motor variation is a compromise between multiple competing constraints. The brain strives for motor behavior that is ‘good enough’ in the face of constraints that tend to promote variation.