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本文对正常80人采用上下唇表面电刺激记录了三叉神经诱发电位。记录电极安放在C_5’/C_6’(10～20系统Cz至外耳孔的中间点),参考电极安放在Fz点,刺激强度为感觉阈的3～4倍。其结果:刺激上唇在C_5’/C_6’点可记录到P_3、N_9、P_(20)、N_(25)、P_(35)、N_(45)各波,刺激下唇时在C_5’/C_6’,可记录到N_3、P_9、N_(13)、P_(20)、N_(25)、P_(35)、N_(45)各波。其记录方法简单,准确,易使被检者接受并在临床应用。
In this paper, the normal 80 people with upper and lower lip surface electrical stimulation recorded trigeminal nerve evoked potentials. The recording electrode was placed on C_5 ’/ C_6’ (10-20 system Cz to the middle point of the external auditory meatus). The reference electrode was placed at Fz and the stimulus intensity was 3 to 4 times of the sensory threshold. The results showed that stimulating upper lip could record P_3, N_9, P_ (20), N_ (25), P_ (35) and N_ (45) waves at C_5 ’/ C_6’ Can be recorded to each of N_3, P_9, N_ (13), P_ (20), N_ (25), P_ (35) and N_ (45). The recording method is simple and accurate, easy to make the subjects accepted and in clinical application.