UDC

612.821:37.042

DOI

10.37482/2687-1491-Z252

Authors

*N.N. Burdenko Voronezh State Medical University (Voronezh, Russia)

Abstract

Studying the effect of the development of the sensorimotor system on the adaptive and compensatory mechanisms of the brain under the influence of various environmental factors, primarily physical ones, is a pressing task for psycho- and neurophysiology. The purpose of this paper was to investigate the dependence of the parameters of flash visual evoked potentials (VEP) on the psychophysiological characteristics of healthy 18–20-year-old individuals. Materials and methods. The research was conducted at the Normal Physiology Department, N.N. Burdenko Voronezh State Medical University. It involved 19 apparently healthy male and female students aged between 18 and 20 years, all of them right-handed. The following parameters were determined: body weight and height, visual acuity according to the Sivtsev table, pupillary reflex, state and trait anxiety according to Spielberger, level of happiness on a 10-point scale, average time spent on the computer (phone) per day, and well-being, activity and mood (according to a questionnaire). Flash VEP were recorded in standard conditions (in a resting state while sitting with eyes closed) using the Neuromyan NMA-4-01 neuromyoanalyser. The relationships between psychophysiological parameters and flash VEP amplitude and duration were studied. Results. We confirmed data (Zelentsov R.N., Poskotinova L.V., 2020) on the correlation between flash VEP parameters and age and on the lack of correlation between flash VEP parameters and visual acuity in healthy adults. It was demonstrated that increasing the time spent on interaction with gadgets synchronizes the work of brain stem neurons. The psychological state of a person affects not only the synchronization of neurons in Brodmann area 17, but also all levels of VEP generalization, and is a reflection of the intensity of information processing. It was observed that the temporal parameters of VEP, in effect, demonstrate the conditions in which the visual system operates and indicate the state of the structures that provide vision, while the amplitude parameters of VEP are linked with a person’s psychophysiological state.

Keywords

flash visual evoked potential, neuromyoanalyser, anxiety, well-being, activity, mood, psychophysiological state

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