Hypnotic effect in the individuals with different suggestibility

The paper presents the results of the investigation concerning time and spa ce organization of brain cortex electric activity and peculiarities of auto nomic regulation of cardiac functions in 19 healthy individuals, which had a pronounced intention to counteract of hypnotic influence. Taking into con sideration the reactions to hypnosis, these individuals were divided into t hree groups: predisposed to hypnotic suggestion, sensitive (intermediate gr oup) and resistant to hypnotic suggestion. In predisposed individuals there were more pronounced sympathetic influences on cardiac functions and less spectral power of all EEG rhythms, except beta(2)-rhythm. In individuals re sistant to hypnotic suggestion there was more pronounced alpha-rhythm in br ain cortex, while sympathetic influences on the cardiac functions were not so pronounced. All individuals reacted to hypnotic suggestion by a decreasi ng of the representation of alpha-rhythm and by diminishing initial interhe mispheric asymmetry. However, a share of beta-rhythm was increased in predi sposed individuals and of theta-rhythm in resistant individuals. In posthyp notic state in resistant persons the correlations of initial EEG rhythms we re completely recovered, while in the individuals from the other groups a r ecovery was observed only in separate EEG frequences.