In the MND group, the latency of positive and negative waves of TCR (P20/ N30) was markedly longer than that in the normal control group, and the difference was significant.

• 运动神经元病组三叉神经-颈反射正波/负波的峰潜伏期(P20/N30)明显高于正常对照组,差异有显著性。