Nonlinear Phenomena in Complex Systems, 2026, Vol.29, No.1, pp.1

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2026, Vol.29, No.1, pp.1 - 9

The Analysis of Frequency-Phase Synchronization in Human Cerebral Cortex Activity in Response to Visual Flickering Stimuli

S. A. Demin, M. A. Kruglik, V. A. Yunusov, and A. V. Minkin

In this paper, within the framework of the Memory Functions Formalism, we study cooperativity in neural processes, which manifests itself in the effects of frequency-phase synchronization of magnetoencephalogram signals measured at different leads when a person is exposed to flickering light stimuli. During the analysis of the synchronization effects in simultaneously recorded signals, statistical characteristics of the interaction of areas of the cerebral cortex with the most pronounced manifestations of coherence when exposed to flickering stimuli were determined, considering the rhythms of the brain. Stratification of phase portraits of orthogonal dynamic variables, an increase in Markov effects, as well as the intensity of α-, β-activity in the frontal and occipital areas of the cerebral cortex of healthy subjects were discovered when light stimuli were applied. The results obtained will be of interest to specialists whose area of interest is neuroscience, data science or cognitive psychology.

Key words: complex system, biomedical signal analysis, brain, bioelectrical activity, magnetoencephalograms, memory function formalism, cross-correlations, frequency-phase synchronization, color stimuli, flickering light

DOI: https://doi.org/10.5281/zenodo.19346729

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