The subject of the study is the comparison of electroencephalographic parameters under various psychotherapeutic effects. Special attention is paid to the conditions that arise during Erickson's hypnosis and the process of visualizing emotionally significant events from the patient's past. The authors consider changes in the physiological and mental functions of the body under the influence of induced trance states. The article describes neurophysiological transformations in the cerebral cortex that occur as a result of the use of various methods of suggestive influence, and an analysis of their specific characteristics is proposed. It was assumed that under the influence of suggestion, EEG parameters can significantly change, indicating profound changes in the state of the central nervous system. To identify the neuroplastic changes caused by the suggestive effect, the background parameters of the electroencephalogram were compared before and after the hypnotic session. Based on the data obtained, an attempt was made to form a comprehensive understanding of the nature of modifications of cerebral activity under suggestive influence. The research methods are: 1) experimental psychological method; 2) EEG research as a method of functional study of the central nervous system. The main conclusions of the study are that the interaction between ancient and new brain structures is manifested through changes in the ratios of theta and alpha rhythms between the hemispheres. Each emotional state of the participants in the experimental study corresponds to a unique space-time pattern of electrical potentials of the brain. At the same time, the target setting embedded in the semantic content of the hypnotic formula is able to activate a specific response in certain brain areas. The authors concluded that the electrical activity of the brain is an indicator of the strength of emotional reactions. With moderate negative emotions, there is a decrease in the alpha rhythm, while positive emotions cause it to increase. The study of physiological and psychological transformations during therapeutic sessions opens up opportunities for creating more effective methods of psychological assistance and improving the well-being of people suffering from mental disorders.
Владимировна et al. (Sun,) studied this question.