[The bioelectrical activity of the brain in an organic lesion of the central nervous system presenting in those who worked in the cleanup of the aftermath of the accident at Chernobyl Atomic Electric Power Station].

A study was made of brain bioelectric activity in 122 patients who developed organic lesions of the brain following their taking part in the elimination of the effects of Chernobyl disaster. A visual analysis was performed as was an assessment of the electroencephalogrammes (EEG) obtained, as recommended by E. A. Zhirmunskaia. Disorganization of bioelectrical activity occurred in organic lesions of the brain in 26.5% of cases, which fact suggested disturbances in the activity of control systems of the brain. Disorganized EEG with marked disturbances in both cortical and regulatory electrogenesis were common in patients presenting with psycho-organic syndrome. The results obtained will, we believe, help in elucidating one of the links in the pathogenesis of the above conditions and selecting a complex of adequate therapeutic measures to be instituted in his pathology treatment setting.