coming from descending modulation from higher parts of the brain, like the motor cortex, the cerebellum, the basal ganglia, will all modulate activity of the spinal cord while we do locomotion.
大脑的高级中枢 例如运动皮层、小脑和基地神经节 进行下行调节并产生上述信号 并对脊髓中的活动起到调控作用