Russian Journal of Biological Physics and Chemisrty Russian Journal of Biological Physics and Chemisrty АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ 2499-9962 55177 10.29039/rusjbpc.2022.0571 МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ MEDICAL BIOPHYSICS AND BIOPHYSICAL CHEMISTRY МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ CONTRAST SENSITIVITY AND EYE MICROTREMOR AS MARKERS OF ADAPTATION AND READAPTATION IN A MODEL EXPERIMENT TO STUDY THE INFLUENCE OF GRAVITY CHANGES КОНТРАСТНАЯ ЧУВСТВИТЕЛЬНОСТЬ И МИКРОДВИЖЕНИЯ ГЛАЗ КАК МАРКЕРЫ АДАПТАЦИИ И РЕАДАПТАЦИИ В МОДЕЛЬНОМ ЭКСПЕРИМЕНТЕ ПО ИЗУЧЕНИЮ ВЛИЯНИЯ ИЗМЕНЕНИЙ ГРАВИТАЦИИ Шошина И. И. Shoshina I. I. i.shoshina@spbu.ru Зеленская И. С. Zelenskaya I. S. Бекренева М. П. Bekreneva M. P. Ляпунов С. И. Lyapunov S. I. Ляпунов И. С. Lyapunov I. S. Котова Д. А. Kotova D. A. Томиловская Е. С. Tomilovskaya E. S. Санкт-Петербургский государственный университет Санкт-Петербург Россия St. Petersburg State University Saint Petersburg Russian Federation Институт медико-биологических проблем РАН Москва Россия Institute of Biomedical Problems of the Russian Academy of Sciences Moscow Russian Federation Институт медико-биологических проблем РАН Москва Россия Institute of Biomedical Problems of the Russian Academy of Sciences Moscow Russian Federation Институт общей физики им. А.М. Прохорова РАН Москва Россия Prokhorov General Physics Institute RAS Moscow Russian Federation Институт общей физики им. А.М. Прохорова РАН Москва Россия Prokhorov General Physics Institute RAS Moscow Russian Federation Санкт-Петербургский государственный университет Санкт-Петербург Россия St. Petersburg State University Saint Petersburg Russian Federation Институт медико-биологических проблем РАН Москва Россия Institute of Biomedical Problems of the Russian Academy of Sciences Moscow Russian Federation 24 11 2022 24 11 2022 7 4 619 623 01 08 2022 https://rusjbpc.ru/en/nauka/article/55177/view

Визуальное восприятие играет решающую роль в обеспечении мозга информацией, необходимой для принятия решений, построения картины мира и адаптации к изменяющимся условиям среды. В условиях «сухой» иммерсии, моделирующей эффекты невесомости на организм человека, исследовали контрастную чувствительность и треморные движения глаз при изменении условий среды. В исследовании приняли участие 10 добровольцев-испытателей (средний возраст 30,8 ± 4,6 лет). Контрастную чувствительность зрительной системы регистрировали с помощью метода визоконтрастометрии. Предъявляли элементы Габора с пространственной частотой: 0,4; 0,8; 1,0; 3,0; 6,0 и 10,0 цикл/град. Параметры микродвижений глаз – амплитуду и частоту треморных колебаний глаз регистрировали с помощью оптической системы, обеспечивающей высокочастотную видеосъемку. Измерения проводили за день до погружения в иммерсионную ванну (фон), на 1, 3, 5 и 7 дни «сухой» иммерсии (СИ), а также на следующий день после ее окончания. Установлено изменение контрастной чувствительности в диапазоне низких и высоких пространственных частот, а также амплитуды микродвижений глаз. Полученные данные на сегодняшний день являются новым шагом в поиске методов объективной оценки функционального состояния при изменении условий среды.

Visual perception plays a crucial role in providing the brain with the information it needs to make decisions, build a picture of the world, and adapt to changing environmental conditions. Under conditions of "dry" immersion, which simulates the effects of weightlessness on the human body, contrast sensitivity and tremor eye movements were studied under changing environmental conditions. The study involved 10 volunteers (mean age 30.8±4.6 years). The contrast sensitivity of the visual system was recorded using the method of visocontrastometry. We presented the Gabor elements with a spatial frequency: 0.4; 0.8; 1.0; 3.0; 6.0 and 10.0 cycle/deg. The parameters of eye micromovements, i.e., the amplitude and frequency of eye tremor oscillations, were recorded using an optical system providing high-frequency video recording. The measurements were carried out the day before immersion in the immersion bath, on days 1, 3, 5, and 7 of “dry” immersion, as well as the next day after its completion. A change in contrast sensitivity in the range of low and high spatial frequencies, as well as in the amplitude of eye micromovements, was established. The data obtained today are a new step in the search for methods for an objective assessment of the functional state under changing environmental conditions.

 контрастная чувствительность микротремор глаз иммерсия гравитация адаптация contrast sensitivity eye microtremor immersion gravity adaptation Выполнено при поддержке РНФ (проект № 22-18-00074).

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