The Analysis of Synchronization Effects of Human Neuromagnetic Signals in Response to Flickering Light Stimuli

In this work, based on the memory functions formalism, we carried out a cross-correlation analysis of biomedical data of complex systems of living nature. We analyzed the effects of synchronization and statistical memory effects in the mutual dynamics of neuromagnetic responses of healthy subjects in response to flickering light stimuli (red-blue, blue-green, red-green). It is shown that even with a high individuality of the studied magnetoencephalograms for each subject, it is possible to establish the nature of the interaction: the synchronization effects between certain areas of the cerebral cortex under different color combinations of light. Moreover, the revealed mutual dynamics of certain brain areas plays an important role in the functioning of the brain as an integral system, primarily under external influences. We established changes in the structure of phase portraits of orthogonal dynamic variables and spectral behavior of the analyzed biomedical signals. The results obtained are of interest for the physics of complex systems and data sciences, cognitive psychology and neurophysiology, as well as for the search for diagnostic criteria for neurological diseases, such as photosensitive epilepsy.