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目的 观察电针和经皮穴位电刺激(TEAS)前后体感诱发电位(SEP)的变化.方法 2015年10月至2016年4月本科实习生10例,采用自身前后对照研究,每例受试者均随机接受电针和TEAS治疗,间隔1周.治疗前后检测SEP的N20、N9潜伏期及波幅.结果 电针治疗后,刺激侧N20潜伏期明显延长(Z=-2.620,P<0.01);非刺激侧N9潜伏期延长(Z=-2.454,P<0.05),N9波幅降低(Z=-2.330,P2.695,P<0.01).两组治疗前后刺激侧及非刺激侧N20和N9潜伏期、波幅差值均无显著性差异(Z0.05).结论 单次电针及TEAS治疗均可对SEP的N20、N9潜伏期及波幅产生影响,两种治疗对SEP的影响组间无明显差异.“,”Objective To explore the effect of electroacupuncture and transcutaneous electrical acupoint stimulation (TEAS) on somato-sensory evoked potential (SEP) of the upper extremity in healthy subjects. Methods From October, 2015 to April, 2016, ten healthy young volunteers were selected. Each of the subjects was randomly treated with electroacupuncture and TEAS. Before and after treatment, the la-tency and amplitude of N20 and N9 of SEP were detected. Results After electroacupuncture, the latency of N20 prolonged in the stimulated side (Z=-2.620, P<0.01);the latency of N9 prolonged (Z=-2.454, P<0.05), and the amplitude of N9 decreased (Z=-2.330, P2.695, P<0.01). There was no significant difference in the D-value of latency and amplitude of N20 and N9 in both two sides between two treatments (Z0.05). Conclusion Both electroacupuncture and TEAS could affect the latency and amplitude of N20 and N9, and no difference was found between two treatments.