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Abstract
The present study pursued to investigate the role of phase interactions between EEG rhythms in the process of the perception of time. The purpose of the study was to analyse the dependence of these interactions on the type and stage of the activity being performed, as well as on the individual characteristics of a human. For this purpose, 27 boys and 29 girls, all university students, were asked to reproduce and measure short intervals of time (200 and 800 ms), during which their EEG was recorded in frontal, central, parietal, temporal, and occipital lobes, according to the system 10–20%. While studying phase interactions between EEG rhythms, we used wavelet bispectral analysis and calculated the bicoherence function. As it follows from the conducted research, most often close phase interactions are observed between the gamma-rhythm and other rhythms of EEG or between different frequencies of the gamma-rhythm. It was established that the phase interactions under study were influenced by the factors of “sex”, “activity type”, and “activity stage”. The study showed correlations of phase interactions with the levels of intellect, extraversion, neuroticism, with the particularities of the lateral organisation of brain, and the accuracy of time perception.
Highlights
The present study pursued to investigate the role of phase interactions between EEG rhythms in the process of the perception of time
The purpose of the study was to analyse the dependence of these interactions on the type and stage of the activity being performed, as well as on the individual characteristics of a human
While studying phase interactions between EEG rhythms, we used wavelet bispectral analysis and calculated the bicoherence function. As it follows from the conducted research, most often close phase interactions are observed between the gamma-rhythm and other rhythms of EEG or between different frequencies of the gamma-rhythm
Summary
Целью исследования явилось изучение роли фазовых взаимодействий между ритмами электроэнцефалограммы (ЭЭГ) в процессах восприятия времени. В задачу исследований входило изучение зависимости этих взаимодействий от вида и этапа выполняемой деятельности, а также от индивидуальных особенностей человека. При изучении фазовых взаимодействий между ритмами ЭЭГ использовали биспектральный вейвлетный анализ и подсчитывали функцию бикогерентности. Что чаще всего тесные фазовые связи наблюдаются между гамма-ритмом и другими ритмами ЭЭГ или между разными частотами гамма-ритма. КЛЮЧЕВЫЕ СЛОВА: восприятие времени, фазовые взаимодействия, ритмы ЭЭГ. Что фазовые взаимодействия между ритмами электроэнцефалограммы (ЭЭГ) могут обеспечивать кодирование, сжатие и координацию нейронных сообщений в мозге [2]. Цель исследования – изучить роль фазовых взаимодействий между ритмами ЭЭГ в процессах восприятия времени. В задачу исследований входило изучение зависимости этих взаимодействий от вида и этапа
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