Results:BCR, ICR and SSEP latencies in patients with nervous system diseaes were remarkably prolonged and the amplitude was lower than that in normal subjects .

• 结果:病例组BCR；ICR；SSEP潜伏期延长；波幅降低；与正常对照组比较存在显著性差异(P<0.；05)；其异常与病变部位有关。