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头皮表面是一种高阻抗介质,周围有一层低阻抗导体.据观察,将头皮浸于无离子水中,可从不与头皮接触的不锈钢电极记录出脑电图及诱发电位.作者在试验时,把支撑电极排列在一个环形网状绷带上,并固定于下颌部.将无离子水注入塑料桶内,参考电极板置于桶底.受检者仰卧检查台上,头朝后伸入桶内,使额中至颈2浸入水中.然后进行脑电图描记或诱发电位记录.本技术优点在于,可施行大量电极的连接.如
Scalp surface is a high-impedance medium, surrounded by a layer of low-impedance conductor.It is observed that the scalp immersed in deionized water can be not in contact with the scalp of stainless steel electrodes recorded EEG and evoked potential.At the time of the experiment, The supporting electrodes are arranged on a ring-shaped mesh bandage and fixed on the lower jaw part, the ion-free water is injected into the plastic barrel, and the reference electrode plate is placed on the bottom of the barrel. , So that the amount to the neck 2 immersed in water and then EEG or evoked potential record The advantage of this technique is that a large number of electrodes can be connected,