Medical Radiology and Radiation Safety. 2016. Vol. 61. No. 5. P. 5-12

RADIATION MEDICINE

N.A. Isaeva, F.S. Torubarov, Z.F. Zvereva, S.N. Lukyanova, E.A. Denisova

Bioelectric Activity of the Brain of Employees of the Novovoronezh and Beloyarsk NPPs at Different Levels of Psychophysiological Adaptation to the Conditions of Their Work

A.I. Burnasyan Federal Medical Biophysical Center of FMBA, Moscow, Russia, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

ABSTRACT

Purpose: The analysis of EEG-indicators at different levels of psychophysiological adaptation (PFA) as its integrated characteristic, as its states: mental (PS), psychophysiological (PFS) and physiological (FS).

Material and methods: 88 employees of nuclear power plants of Russia are examined (43.1±9.4 years, 75 men). Psychophysiological examination was conducted by means of hardware and software complex “Agrarian and Industrial PFS-Control”. Techniques were used: “Technique of multilateral research of the personality”, “16-factorial personal questionnaire”, “The Raven’s Progressive Matrices”, “Level of subjective control”, “Simple visual and motor reaction”, “Difficult visual and motor reaction”, “Reaction to a moving subject”, “Variability of a warm rhythm”. Carried in parallel out the visual analysis of EEG by the method E.A. Zhirmunskaya. Existence of abnormal signs were estimated: EEG of the IV type, instability of a pattern during background record, a high index of low-frequency β-activity, flashes of bilateral and synchronous waves. The comparative statistical assessment of various groups was carried out, using parametrical and nonparametric criteria according to the BIOSTAT program.

Results: At the PFA low level 4 above-stated abnormal signs are revealed in comparison with high corresponded to the low level of mental state: EEG of the IV type and instability of dynamics. The PFS low level (in comparison with high) correlated with EEG indicators: IV type, instability of dynamics, flashes of bilateral and synchronous waves. At the FS low level were registered: EEG of the IV type, instability of dynamics, a high index β1-activity, flashes of bilateral and synchronous waves.

Conclusions: 1) PFA determined by psychophysiological tests is reflected in indicators of bioelectric activity of the brain. 2) At the PFA low level character of abnormal EEG signs allows to assume existence of functional deviations at the CNS different levels. 3) The greatest neurophysiological violations are revealed in persons with the low level of physiological state.

Key words: employees of the NPP, EEG, psychophysiological adaptation

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For citation: Isaeva NA, Torubarov FS, Zvereva ZF, Lukyanova SN, Denisova EA. TActivity of the Brain of Employees of the Novovoronezh and Beloyarsk NPPs at Different Levels of Psychophysiological Adaptation to the Conditions of Their Work. Medical Radiology and Radiation Safety. 2016;61(5):5-12. Russian.

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