Medical Radiology and Radiation Safety. 2025. Vol. 70. № 6
DOI:10.33266/1024-6177-2025-70-6-84-96
Z.F. Zvereva1, N.P. Vanchakova2, F.S. Torubarov1, S.N. Lukyanova1,
L.I. Fortunatova1, E.V. Miroshnik1
Characteristics of the Functional State of the Central Nervous System at a Low Level of Psychophysiological Adaptation in Workers of Nuclear-Hazardous Enterprises and Productions
1 A.I. Burnazyan Federal Medical Biophysical Center, Moscow, Russia
2 I.P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia
Contact person: Z.F. Zvereva, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
Purpose: To identify the mechanisms of formation of the functional state of the central nervous system with a low level of psychophysiological adaptation. To establish the involvement of structural and functional formations that characterize the mental, psychophysiological and physiological levels of functioning. To do this, analyze the data of visual EEG analysis, the characteristics of the power of EEG and indicators of cerebral energy exchange.
Material and methods: EEG of employees of nuclear hazardous enterprises and industries with low and high levels of psychophysiological adaptation. The following methods were used: visual analysis, EEG spectral power analysis, assessment of cerebral energy exchange.
Results: According to visual EEG analysis and analysis of the spectral power of EEG, the functional state of the central nervous system decreased with a low level of adaptation. The main contribution to the decline was made by: structural and functional formation, which is responsible for the central regulation of the cardiovascular system; increased activity of the structures of the limbic-reticular complex, which regulate autonomic functions and emotional reactions.
Conclusion: Increased activity of the structures of the limbic-reticular complex indicated the presence of emotional stress in the subjects. With a high level of adaptation, homeostasis under stress is maintained by allostasis. With allostasis, the body’s parameters are constantly changing, and they do not go out of the norm. With a low level of adaptation, homeostasis under stress is maintained by enantiostasis. Enantiostasis is aimed at preserving the functions of the body, the indicators of the internal environment change and exceed the limits of the norm.
The processes of cerebral energy exchange at a low level of adaptation intensified in the anterior (information-processing) parts of the cortex, and did not change in the posterior (information-receiving) departments when performing the functions of mental and psychophysiological levels of functioning. The enhancement may be due to the need to intensify cerebral energy exchange during the processing of iformation, which occurs with the participation of the frontal lobes. The frontal lobes are responsible for the most complex forms of mental activity involving higher mental functions.
There was no increase in energy exchange in the structural and functional education responsible for the central regulation of the cardiovascular system carried out by the diencephalic parts of the brain (without the involvement of higher mental functions).
Keywords: workers of nuclear hazardous enterprises, central nervous system, functional state, EEG, visual analysis, psychophysiological adaptation, cerebral energy exchange
For citation: Zvereva ZF, Vanchakova NP, Torubarov FS, Lukyanova SN, Fortunatova LI, Miroshnik EV. Characteristics of the Functional State of the Central Nervous System at a Low Level of Psychophysiological Adaptation in Workers of Nuclear-Hazardous Enterprises and Productions. Medical Radiology and Radiation Safety. 2025;70(6):84–96. (In Russian). DOI:10.33266/1024-6177-2025-70-6-84-96
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Conflict of interest. The authors declare no conflict of interest.
Financing. The study had no sponsorship.
Contribution. Article was prepared with equal participation of the authors.
Article received: 20.07.2025. Accepted for publication: 25.08.2025.