Saratov JOURNAL of Medical and Scientific Research

Lukyanova S.N.

State Research Center — Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency Chief Researcher of Laboratory №32, Department 7, Professor, DSc

Experimental study of the bioeffects of micropolarization current as a result of the use of metallic conductors in irradiating a rabbit's head with electromagnetic field of non-thermal intensity

Year: 2019, volume 15 Issue: №4 Pages: 994-998
Heading: Тhematic supplement Article type: Original article
Authors: Lukyanova S.N., Fomina T.V., Veselovskiy I.A.
Organization: State Research Center— Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency
Summary:

The purpose of the study is to experimentally evaluate the impact of metal electrodes and wires on the brain bioelectric activity indicators as a result of rabbit head irradiation with electromagnetic field (EMF) of non-thermal intensity. Material and Methods. Studies conducted on rabbits. Electromagnetic field: 10 GHz, continuous mode, PPS 200 mW/cm2, created by the high-frequency signal generator G4-121 with repeated exposures with different durations. Results. The probability of the development of the effects of current micropolarization is shown when using metallic conductors, which changes the result of the EMF action. It depends on the number of electrodes and the location of wires relative to the field lines. Conclusion. We substantiated the possibility of the influence of metal electrodes on the bioelectrical activity of the brain by inducing a micropolar current under conditions of irradiation of the head with an electromagnetic field in the course of experiments on rabbits.

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EEG indicators of the central nervous system in individuals with different levels of psychophysiological adaptation

Year: 2019, volume 15 Issue: №4 Pages: 965-967
Heading: Brief Reviews Article type: Short message
Authors: Torubarov F.S., Zvereva Z.F., Lukyanova S.N.
Organization: State Research Center— Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency
Summary:

The purpose of the study is to assess functional activity of the brain, individual structural and functional formations of the central nervous system at different levels of psychophysiological adaptation (PFA) and to identify their contribution to the formation of low PFA level. Material and Methods. Using psychological and visual-motor tests, methods of heart rate variability, functional state of structural and functional formations of the central nervous system: "cortex", "cortical-subcortical interaction", "central regulation of the cardiovascular system" was evaluated; the integral PFA level was determined using the evaluation results. EEG was used to evaluate brain functional activity and the listed CNS formations. Results. As the level of PFA in the EEG decreased, indicators regarded as the anomalous ones increased: type IV EEG; unstable EEG dynamics; high index of (31 activity; flashes of bilateral synchronous waves. The maximum number of abnormal EEG parameters was revealed at low FS of structural and functional formation "central regulation of the cardiovascular system" in persons with low PFA level. Conclusion. Identification of the maximum number of abnormal EEG indicators at low FS of structural and functional formation of the central nervous system "central regulation of the cardiovascular system" in persons with low PFA level testified to its main contribution to the formation of a low integral level of PFA.

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