Experimental studies on spinalized frogs and rats have led to the conclusion that the premotor circuits within the spinal cord are organized into a set of discrete modules.

• 在切断脊髓神经蛙、鼠的实验研究中已经获得一个结论，那就是于脊髓内的运动前神经回路会整合出一套离散式的模组；