Jervis B W, Nichols M J, Allen E M, Hudson N R, Johnson T E
Electroencephalogr Clin Neurophysiol. 1985 Nov;61(5):444-52. doi: 10.1016/0013-4694(85)91037-5.
A quantitative assessment of both computerised correlation and analogue techniques for the removal of eye movement artefact from the electroencephalogram was undertaken. In both methods a fraction of the measured EOGs was subtracted from the measured EEG to leave the corrected EEG. In the correlation method the correction factors were computed from the cross-correlations of the EOGs and measured EEGs. In the analogue method the fraction subtracted was derived using a potential divider arrangement. The relative effectiveness of the two methods was determined by comparing the autocorrelation functions of the corrected EEGs at a lag of 2 sec. It was found that the computerised correlation technique was superior. A 3-channel EOG correlation correction procedure was found adequate in which two horizontal and one vertical EOGs were used. The analogue technique was very time consuming and possibly erroneous.
对从脑电图中去除眼动伪迹的计算机相关技术和模拟技术进行了定量评估。在两种方法中，都从测量的脑电图中减去一部分测量的眼电图，以得到校正后的脑电图。在相关方法中，校正因子是根据眼电图和测量的脑电图的互相关计算得出的。在模拟方法中，减去的部分是使用分压器装置得出的。通过比较校正后的脑电图在2秒延迟时的自相关函数，确定了两种方法的相对有效性。结果发现计算机相关技术更优越。发现一种三通道眼电图相关校正程序是足够的，其中使用了两个水平眼电图和一个垂直眼电图。模拟技术非常耗时且可能有误。
