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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2019; 65(2): 43-51


CHANGES IN BRAIN ELECTRICAL ACTIVITY DURING THE REHABILITATION OF SERVICEMEN WITH REMOTE CONSEQUENCES OF COMBAT MENTAL TRAUMA

V.V. Kalnysh1,2, A.V. Shvets2, S.S. Pavlyuk2

  1. SI “Kundiev Institute of occupational health of National Academy of Medical Sciences of Ukraine”, Kyiv, Ukraine
  2. Ukrainian Military Medical Academy, Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz65.02.043

Abstract

The neurophysiological features of bioelectric activity restoration of the brain in 32 soldiers aged 32 ± 5.6 years during their psychomedical rehabilitation due to posttraumatic stress disorder (PTSD) as a result of the influence long-term and intense stressful combat conditions have been studied. The computer electroencephalography (EEG) method using the “DX-system” encephalograph and the NeuroResearcher® Innovation module was used to evaluate bioelectric activity of the brain. To process the results, methods of descriptive statistics and correlation analysis have been used. The coefficients of asymmetry and multicollinearity were calculated. The obtained data testify to improvement of EEG profiles after rehabilitation of persons with PTSD. There has been found an increase in the correlation of characteristics in the α, β1, θ rhythms at the frontal area of the brain on the background of a general decrease in the number of reliable correlations after the rehabilitation of individuals with PTSD, which may indicate more synchronous activity of the brain at the frontal area and normalization (decrease) of the spectral frequency peak in β1 activity after rehabilitation. It was shown that the correlation of electrical activity in dual points of the brain in the frontal zone is reliable (p <0.01) with closed eyes in α-range before and after rehabilitation, and it disappears under mental load in the α- and β1-ranges after rehabilitation. Significant positive changes (more than 1.5 times) in correlation data of multicollinearity indicators in the frontal area with closed eyes in β2 and θ bands have been revealed. The stage diagnostics procedure and application of the indicator of integral connectivity of EEG components of military personnel with PTSD during their psychomedical rehabilitation have been proposed.

Keywords: electroencephalography; post-traumatic stress disorder; adjustment disorders; combat operation participants; psychomedical rehabilitation.

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