About bioelectric buffer system of the brain

Keywords: electroencephalogram; meaningful interhemispheric asymmetries; bioelectrical buffer system of the brain.

Abstract

Objective. Elaboration of objective quantitative criterion of electroencephalogram for estimation of the brain functional state in man.

Маterials and methods. The background electroencephalograms analysis was conducted in 6 groups of the examined patients with various diagnosis (41 patients at all). Control group consisted of 7 patients, ageing 20 - 56 yrs (average age 35 yrs). Recording of EEG was conducted, using 16-channel electroencephalograph «NeuroCom standart» (KhАI - Меdika, Ukraine) in accordance to international system of recording «10-20». There were analyzed a quantity of meaningful interhemispheric asymmetries in accordance to power of summarized bioelectric signal in bilateral-synchronous points of the head in every group. The analysis time have constituted 1 min.

Results. There was established, that the least meaningful difference in accordance to the bioelectrical signal power in bilateral-synchronous points of head may be considered in 1.4 times. Quantity of meaningful interhemispheric asymmetries in man may vary in large diapason - from 9 tо 25. Not all meaningful interhemispheric asymmetries in accordance to power of signals of separate rhythms are preserved while doing analysis of meaningful interhemispheric asymmetries in accordance to power of a summarized bioelectrical signal. Interhemispheric asymmetries in accordance to power of the summarized bioelectric signal in bilateral-synchronous points of the head may have more important informative meaning, than interhemispheric asymmetry in accordance to the signals power of separate rhythms.

Conclusion. Quantity of meaningful interhemispheric asymmetries in accordance to power of signals of separate rhythms in healthy persons may vary from 16 tо 18. The interhemispheric asymmetries quantity reduction in accordance to power of the summarized bioelectric signal, comparing with quantity of interhemispheric asymmetries in accordance to power of signals of separate rhythms more than in 4 times, witnesses presence of the brain bioelectrical buffer system.

Author Biographies

L. V. Berezovchuk, Education-Scientific Centre of Institute of Biology and Medicine of Taras Shevchenko National University, Kyiv

Liudmyla Berezovchuk, PhD, senior scientific researcher
Department of Human and Animal Physiology
Research and Educational Center "Institute of Biology and Medicine"
Taras Shevchenko National University, Kyiv
64 Volodymyrska, Kyiv, 01033, Ukraine
E-mail: berezovchuk@yahoo.com
+38 098 598 4938
Orcid.org/0000-0002-0807-6806

M. E. Makarchuk, Education-Scientific Centre of Institute of Biology and Medicine of Taras Shevchenko National University, Kyiv

Mykola Makarchuk, DSci (Biol), Professor,
Head of the Department of Human and Animal Physiology
Research and Educational Center "Institute of Biology and Medicine"
Taras Shevchenko National University, Kyiv
64 Volodymyrska, Kyiv, 01033, Ukraine
E-mail: mykola.makarchuk@gmail.com
+38 044 521 3283
Orcid.org/0000-0002-0982-3463

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Published
2020-09-30
How to Cite
Berezovchuk, L. V., & Makarchuk, M. E. (2020). About bioelectric buffer system of the brain. Klinicheskaia Khirurgiia, 87(7-8), 53-57. https://doi.org/10.26779/2522-1396.2020.7-8.53
Section
General Problems of Surgery