脑电图单极记录时参考点的位置问题,至今还没有一个理想之处,现在国内多数脑电图仍以使用耳垂者为多。但由于耳垂易浮动,伪差多,也由于该处太靠近颞叶,颞叶所记录的脑波幅度失真明显,而颞叶的异常电活动又可被耳垂电极接收,产生所谓公用电极“活化”现象,使定位发生困难,甚至出现错误, EEG unipolar recording reference point position, so far there is no ideal place, and now most of the country is still using EEG more. However, because the earlobe is easy to float and has many artifacts, because the place is too close to the temporal lobe, the amplitude of the brainwave recorded by the temporal lobe is obviously distorted, while the abnormal electrical activity of the temporal lobe can be received by the earlobe electrode, resulting in the so-called common electrode activation "Phenomenon, making positioning difficult, or even wrong,