Open AccessFrequency-phase synchronization in visually induced MEG signals of the human cerebral cortex
Author(s) -
I. G. Isaeva,
O. Yu. Panischev,
Sergey Demin,
A. R. Ildiryakova
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1697/1/012052
Subject(s) - neuroscience , cerebral cortex , phase portrait , synchronization (alternating current) , psychology , magnetoencephalography , phase synchronization , visual cortex , communication , physics , phase (matter) , computer science , electroencephalography , computer network , channel (broadcasting) , quantum mechanics , nonlinear system , bifurcation
In paper, using the Memory Functions Formalism, we carry out a comparative analyzing the induced neuromagnetic responses of the cerebral cortex of healthy people to the two visual flickering stimuli. At the first stage, based on the correlation coefficient, we determined the regions whose interaction (on average for the group) for different stimuli differs most strongly. Next, we analyze the phase portraits of dynamic orthogonal variables and the memory function power spectra. We have found the differences in dynamic, spectral and stochastic characteristics of the magnetoencephalogram signals of the cerebral cortex under the influence of the considered stimuli. The findings provide an opportunity for a deeper understanding of the processes of the spread of excitation in the cerebral cortex with visual stimuli.