Motor control mechanisms for psychological perturbation: Elucidationof spinal reflex network and introduction of non-invasive brain stimulation

通过两项实验研究了运动任务执行过程中心理干扰对脊髓反射的影响。结果表明，愉快情绪和不愉快情绪对脊柱反射有促进作用，心理压力对脊柱反射有抑制作用。此外，我们还进行了两个实验来研究经颅直流电刺激对运动皮层兴奋性变化对快速运动反应的影响。观察到阳极刺激可缩短反应时间和运动时间，提示非侵入性脑刺激可促进运动皮层兴奋性，从而提高运动技能。

T wo experiments were conducted to investigate the influence of psychological perturbations on spinal reflexes during motor task execution. Facilitation of spinal reflexes by pleasant and unpleasant emotion and inhibition of spinal reflexes under psychological pressure were shown. Furthermore, two experiments were performed to investigate the effect of changes in motor cortex excitability by transcranial direct current stimulation on a quick motor response. Shorten reaction and movement times by anodal stimulation were observed, suggesting that facilitation of motor cortex excitability by using non-invasive brain stimulation could improve motor skills.