Neurophysiological patterns of search and creative behavior in patients with psychoactive substance-induced disorders.

The correlation between search and creative behavior with parameters of bioelectric brain activity was observed in patients with addictive disorders. The prevalence of α- and θ-activities in the parietal-temporal-occipital areas of the cortex and increased θ-activity in the right hemisphere in addiction patients with high search and creative activities were associated with enhanced high-frequency activity in these brain areas. These changes can reflect the formation of a focus of pathologically increased excitation related to the pathogenic mechanisms of addictive disorders.

[EEG features during olfactory stimulation in drug dependence persons].

Power spectra analysis EEG was used for baseline interval and during olfactory stimulation in drug dependence and healthy persons. Intergroup differences of EEG spectra were related with enhancement of cortex biopotential power in narcological patients at parietal and temporal sites. Interhemispheres features of frequency bands contribution in EEG spectra were identified. Increased biopotential power in drug dependence persons was observed at left temporal hemisphere in high-frequency bands in baseline interval and during olfactory stimulation. Increased power of alpha activity was typical for right temporal hemisphere in narcological patients as compare to healthy persons. Detected neurophysiological patterns may be related with psychological and behavioral features of addictive disorders.

[The prevalence of neuropsychic pathology among underground coal mine workers]. / Rasprostranennost' nervno-psikhicheskoi patologii sredi podzemnykh rabochikh ugol'nykh shakht.

The prevalence [correction of incidence] rate and types of mental and nervous diseases were studied in a clinico-epidemiological survey which entered 3400 able minors from the Kuznetsk coal mines. A lot of miners were found suffering from borderline exogenic-organic diseases which may be related to high occurrence of traumas in the mine. The rates of the diseases established by the survey surpassed greatly the registered rates. This says in favor of more profound and careful medical examinations in occupational selection. The data on the nervous and mental disease prevalence [correction of incidence] in various age, occupational and service groups provide information for establishing risk groups which need preventive and treatment measures to prolong the time of underground work capacity of miners.