THE SPATIAL-ORGANIZATION OF ELECTRICAL-AC TIVITY THE BRAIN CORTEX IN PATHOLOGICAL ALCOHOL INCENTIVE

The polymorphism of reaction to emotionally significant stimuli is dis cussed in the context of pathological incentive. Using the <<Synchro-E EG>> technigue 41 patients and 11 healthy volunteers were examined. An alysis of the spatial organization of cortical electrical activity rev ealed three types of reactions in patients. Intergroup differences wer e reflected in generalized and local cortical processes (mainly, in th e frontal regions of the left and temporo-parieto-occipital regions of the right hemispheres). They were probably related to the sign of emo tions, behavioural and autonomic nervous tension and the attitude to t he object of motivation (<<approach-withdrawal>>). This suggestion was substantiated by the finding that the aversive therapy can change the pattern of cortical processes. Intergroup differences were revealed n ot only in the reactive (to emotionally significant stimulus) but also in the background electrical activity. The groups were different in t he dominance of different narrow-freguency processes in one group as c ompared to the other. These findings suggest determination of emotiona l reactions by the initial functional state of patients.