[The role of biological and social psychological factors in the genesis of hysterical neurosis].

Based on comprehensive examinations of 200 patients with hysterical neurosis, made in terms of a total systems biological approach it has been shown that closely interwoven biological and sociopsychological factors intercondition, supplement and determine both formation of the so-called "ground" and the clinical manifestations of neurosis. Hysterical neurosis is viewed as an original clinical model of the formation of the defence behavior system where a special system-forming role is played by the brain mechanisms of positive reinforcement, i. e. as resting on the mechanism of a pathological attraction to positive emotions, attained in a mediated manner via the system of negative emotions and their transformation.