Features of heart rate regulation and activity of the brain during testing the reaction of choice in the military men with traumatic brain injury

V. Vozniuk, N. Filimonova, M. Makarchuk, I. Zyma, O. Horbunov, V. Kalnysh
Taras Shevchenko National University of Kyiv, Kyiv; Taras Shevchenko National University of Kyiv, Kyiv; Taras Shevchenko National University of Kyiv, Kyiv; Taras Shevchenko National University of Kyiv, Kyiv; Taras Shevchenko National University of Kyiv, Kyiv; Yu. I. Kundiyeva Institute for occupation health NAMS of Ukraine, Kiyv


This study involved 23 male volunteers, right-handers, ages 18-21, without complaints of health – students of Taras Shevchenko National
University of Kyiv (control group), 14 male volunteers, right-handers, aged 27-43, military men who took part in the operations in the east of Ukraine
with traumatic brain injuries (TBI), later – military men with TBI – the patients of the Yu.I.Kundiyeva Institute for occupation health NAMS of Ukraine,
Kiyv and 24 volunteers, right-handed, age 20-51: 14 military men with TBI and 10 with military men with post-traumatic stress disorder (PTSD) –
patients of the Center for Medical Rehabilitation and Health Centre of the Ministry of Defence of Ukraine "Pushcha Voditsa". EEG- and ECG-study
and analysis of brain dipoles using the LORETA and Heart Rate Variability Technique during the reaction of choice test revealed a significant
decrease in the response speed of choice for military men with TBI as compared to the control group, while in the for military men with PTSD the
response speed of choice was not differed from the control group. In comparison with the simple sensorimotor reaction test, only for for military
men with TBI, when testing the reaction of choice, a decrease in the activity of the sympathetic department of the ANS was revealed. In the control
group, the reaction of choice was essentially involving Anterior Cingulate Cortex, while in the group with TBI – the Parietal Cortex, and in the group
with PTSR – Middle Frontal Gyrus.


reaction of choice, military men with TBI, military men with PTSD, LORETA, ACC, sympathetic activity of ANS

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