脊髓牵张反射中的适应性可塑性。

Adaptive plasticity in the spinal stretch reflex.

作者信息

Wolpaw J R, Kieffer V A, Seegal R F, Braitman D J, Sanders M G

出版信息

Brain Res. 1983 May 9;267(1):196-200. doi: 10.1016/0006-8993(83)91059-4.

Abstract

Monkeys can change the amplitude of the spinal stretch reflex without change in initial alpha motor neuron tone, as measured by EMG, or in initial muscle length. Change is apparent in 5-10 days, continues to develop over weeks, and persists during inactive periods. Spinal stretch reflex change may be a valuable system for studying the neuronal and synaptic bases of an adaptive change in primate CNS function.

摘要

猴子能够改变脊髓牵张反射的幅度，而通过肌电图测量的初始α运动神经元张力或初始肌肉长度并无变化。这种变化在5 - 10天内明显可见，在数周内持续发展，并在非活动期持续存在。脊髓牵张反射的变化可能是研究灵长类动物中枢神经系统功能适应性变化的神经元和突触基础的一个有价值的系统。