诱发电位是指感觉传入系统受到刺激时,在中枢神经系统引起的电位变化。在清醒状态时,由颅外引导的这种电位变化,总是出现在比它大得多的自发脑电的背景上,因此,只有当计算机平均技术发展后,才能满意地记录下来。在国际上,从六十年代以后已逐渐应用于临床,在我国,目前刚刚开始。 临床上检查诱发电位的方法很简单,只要有一定的仪器,脑电图技术员很容易掌握这一技术。对病人无痛苦,时间很短即可完成。目前临床上应用的诱发电位检查主要有以下三方面;躯体感觉诱发电位(Somatosensory Evoked Potential简称SEP)视觉诱发电位(Visual Evoked Potential简称VEP)和听觉诱发电 Evoked potentials refer to changes in the electrical potential induced in the central nervous system when the sensory afferent system is stimulated. During wakefulness, this potential change induced by the extracranial head always appears on the background of much larger spontaneous EEG, and therefore can only be satisfactorily recorded when computer-aided techniques are developed. In the world, it has gradually been applied to clinical practice since the 1960s, and in our country it is just beginning. The method of examining the evoked potentials is very simple, as long as there is a certain instrument, EEG technicians can easily master this technology. No pain for the patient, a short time to complete. At present, there are mainly three aspects of evoked potentials in clinical application: somatic evoked potentials (SoP) evoked potential (Visual Evoked Potential referred to as VEP) and evoked evoked potentials