de Toffol B, Autret A
Clinique Neurologique, CHU Bretonneau, Tours, France.
Int J Psychophysiol. 1991 Aug;11(2):109-14. doi: 10.1016/0167-8760(91)90002-f.
Spectral analysis of the EEG (alpha-rhythm) was studied in 8 young right-handed men who underwent 6 experimental tasks which were compared with rest, and included two pure motor activities using only the right and then the left hand, two pure neuropsychological tasks, and two "mixed" tasks with both neurophysiological and motor activities. The electrophysiological parameters studied were the log of spectral power and an asymmetry index (RP-LP)/(RP + LP). In order to demonstrate lateralization of the EEG, one must associate lateralized motor and neuropsychological tasks (which are supposed to preferentially involve one of the cerebral hemispheres). These results may reconcile apparently divergent views published in the literature with respect to lateralized EEG modifications associated with cognitive activities.
对8名年轻右利手男性进行了脑电图（α波节律）的频谱分析，他们接受了6项实验任务，并与静息状态进行比较，这些任务包括两项仅使用右手然后左手的纯运动活动、两项纯神经心理学任务以及两项兼具神经生理和运动活动的“混合”任务。所研究的电生理参数是频谱功率的对数和不对称指数（RP-LP）/（RP + LP）。为了证明脑电图的侧化，必须将侧化的运动和神经心理学任务联系起来（这些任务被认为优先涉及大脑半球之一）。这些结果可能会调和文献中关于与认知活动相关的脑电图侧化改变的明显不同观点。
