Sabourin M E, Cutcomb S D, Crawford H J, Pribram K
Department of Psychology, University of Montreal, Que., Canada.
Int J Psychophysiol. 1990 Dec;10(2):125-42. doi: 10.1016/0167-8760(90)90027-b.
EEG was recorded monopolarly at frontal (F3, F4), central (C3, C4) and occipital (O1, O2) derivations during A-B-A conditions of waking rest, hypnosis (rest, arm immobilization, mosquito hallucination, hypnotic dream), and waking rest. Stringently screened on several measures of hypnotic susceptibility, 12 very low hypnotizable and 12 very highly hypnotizable, right-handed undergraduate, subjects participated in one session. Evaluations were Fast-Fourier spectral analysis, EEG coherence between selected derivations and maximum spectral power within EEG bands. In eyes open and closed conditions in waking and hypnosis, highly hypnotizable subjects generated substantially more mean theta power than did low hypnotizable subjects at all occipital, central and frontal locations in almost all conditions of waking and hypnosis, with a larger difference in frontal locations. Both low and high hypnotizables showed increased mean theta power in hypnosis, suggesting an intensification of attentional processes and imagery enhancement. Mean alpha power was never a predictor of hypnotic susceptibility. Interactions with hypnotic susceptibility showed that highly susceptible subjects had more beta activity in the left than right hemispheres, while low susceptible subjects showed only weak asymmetry. No main effects for or interactions between waking/hypnosis and hypnotic level were found for coherence between derivations or maximum spectral power within theta, alpha and beta EEG bands.
在清醒休息、催眠（休息、手臂固定、蚊虫幻觉、催眠梦境）以及清醒休息的A - B - A条件下，通过单极导联在额叶（F3、F4）、中央（C3、C4）和枕叶（O1、O2）部位记录脑电图。经过严格的催眠易感性多项指标筛选，12名极易被催眠和12名极难被催眠的右利手本科受试者参与了一次实验。评估方法包括快速傅里叶频谱分析、选定导联之间的脑电图相干性以及脑电图频段内的最大频谱功率。在清醒和催眠状态下的睁眼和闭眼条件下，在几乎所有清醒和催眠状态下，高催眠易感性受试者在所有枕叶、中央和额叶部位产生的平均θ波功率均显著高于低催眠易感性受试者，额叶部位的差异更大。低催眠易感性和高催眠易感性受试者在催眠状态下的平均θ波功率均增加，表明注意力过程增强和意象增强。平均α波功率从未成为催眠易感性的预测指标。与催眠易感性的交互作用表明，高易感性受试者左半球的β活动多于右半球，而低易感性受试者仅表现出微弱的不对称性。在脑电图θ、α和β频段内，未发现导联间相干性或最大频谱功率在清醒/催眠与催眠水平之间的主效应或交互作用。
