Annals of the Russian academy of medical sciencesAnnals of the Russian academy of medical sciencesВестник Российской академии медицинских наук0869-60472414-3545"Paediatrician" Publishers LLC11110.15690/vramn.v68i12.863SHORT MESSAGESКРАТКИЕ СООБЩЕНИЯINDIVIDUAL ALPHA FREQUENCY EEG AS NEUROPHYSIOLOGICAL ENDOPHENOTYPE OF AFFECTIVE PREDISPOSITIONSИНДИВИДУАЛЬНАЯ ЧАСТОТА Α ОСЦИЛЛЯЦИЙ ЭЛЕКТРОЭНЦЕФАЛОГРАММЫ КАК НЕЙРОФИЗИОЛОГИЧЕСКИЙ ЭНДОФЕНОТИП ЭМОЦИОНАЛЬНЫХ ПРЕДИСПОЗИЦИЙAftanasL. I.АфтанасЛ. И.
Russian Federation

PhD, professor, academician of RAMS, Head of the Laboratory of Psychophysiology of State Research Institute of Physiology and Fundamental Medicine under the Siberian Branch of the Russian Academy of Medical Sciences. Address: 4, Timakov Street, Novosibirsk, RF, 630117, tel.: +7 (383) 335-98-55

l.aftanas@physiol.ruTumyalisA. V.ТумялисА. В.
Russian Federation

research scientist of the Laboratory of Psychophysiology of State Research Institute of Physiology and Fundamental Medicine under the Siberian Branch of the Russian Academy of Medical Sciences. Address: 4, Timakov Street, Novosibirsk, RF, 630117, tel.: +7 (383) 335-97-37

a.v.tumyalis@physiol.ruScientific Research Institute of Physiology and Basic Medicine under the Siberian Branch of the Russian Academy of Medical Sciences, Novosibirsk, Russian FederationНИИ физиологии и фундаментальной медицины СО РАМН, Новосибирск, Российская федерация101220136812Vestnik Rossiiskoi akademii medetsinskikh nauk / Annals of the Russian academy of medical sciencesВестник Российской академии медицинских наук697907082015Copyright ©; 1970, "Paediatrician" Publishers LLCCopyright ©; 1970, Издательство "Педиатръ"1970"Paediatrician" Publishers LLCИздательство "Педиатръ"https://vestnikramn.spr-journal.ru/jour/about/submissionshttps://vestnikramn.spr-journal.ru/jour/article/view/111

Individual alpha frequency (IAF) of electroencephalogram (EEG) is regarded as a neurophysiological endophenotypic indicator of cognitive activity featuring individual propensity to efficient cognitive performance and creativity. Considering that cognitive coping style is intrinsic part of emotional regulation, defining medical aspects of individual health as well as risks of psychosomatic diseases, we intended to assess IAF contribution into mechanisms of individual emotional reactivity. Participants and methods. As participants was healthy man subjects (n=62). Three models of laboratory induced emotions were used: emotional perception (1); anxious apprehension (awaiting of inescapable aversive punishment) (2); experience of discrete emotions of anger and joy (3). Results. It was revealed that high IAF individuals exhibit predisposition to prevalence of parasympathetic activity in the global circuit of autonomous regulation, proactive-like coping with inescapable threat, prevailing contribution of the positive emotional stance and better accessibility of recent positive memories. By contrast, low IAF subjects manifested predisposition to prevalence of sympathetic activity in the global circuit of autonomous regulation, maladaptive avoidance-like coping with inescapable threat, insufficiency positive emotional arousal mechanisms. Conclusions. It is suggested that IAF creates a «hardware» construct featuring individual emotional space and adaptability of coping styles to emotional challenges.

Индивидуальная частота α-ритма электроэнцефалограммы (individual alpha frequency, IAF) является важным нейрофизиологическим эндофенотипом, характеризующим предиспозицию к эффективной когнитивной деятельности. Учитывая, что когнитивные стратегии — важнейший компонент восприятия, переживания и регуляции эмоций, определяющий медицинские аспекты индивидуального здоровья и риски развития психосоматических заболеваний, цель настоящего исследования — оценить возможный вклад IAF в механизмы индивидуальной эмоциональной реактивности. Пациенты и методы. В качестве испытуемых выступали здоровые мужчины (n=62). Выполнено 3 психофизиологических исследования с различными моделями вызванных эмоций у человека: восприятия эмоций (1); переживания тревожного опасения (ожидания неизбегаемого аверсивного воздействия) (2); переживания дискретных положительных и отрицательных эмоций (3). Результаты. Установлено, что у лиц с высокой IAF наблюдается преобладание парасимпатических влияний в глобальном контуре вегетативной регуляции, проактивных копинг-стратегий совладания с неизбегаемой угрозой, преобладание активности положительной эмоциональной установки и доступность следов памяти на положительные переживания. Напротив, для индивидов с низкой IAF характерными являются преобладание симпатических влияний в глобальном контуре вегетативной регуляции, неадаптивные избегательные копинг-стратегии совладания со стрессором, недостаточность механизмов положительной эмоциональной активации. Выводы. Предполагается, что IAF создает устойчивый типологический контекст («hardware»), оказывающий модулирующее влияние на формирование индивидуального эмоционального пространства и адаптивность стратегий совладания с эмоциональными вызовами.

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