Spatiotemporal scaling of visually evoked human neuromagnetic signals

In this work, we carry out a fractal analysis of visually evoked neuromagnetic responses of the human cerebral cortex in response to flickering light stimuli of different color combinations (red-blue, red-green, blue-green). The study uses magnetoencephalogram signals from healthy subjects recorded...

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Bibliographic Details
Published in2022 VIII International Conference on Information Technology and Nanotechnology (ITNT) pp. 1 - 5
Main Authors Yunusov, Valentin, Demin, Sergey, Rusanova, Inna, Minkin, Alexander, Elenev, Alexander
Format Conference Proceeding
LanguageEnglish
Published IEEE 23.05.2022
Subjects
brain
Cerebral cortex
complex systems
data mining
data science
Electroencephalography
flickering light stimuli
fractal features
Fractals
Magnetic resonance imaging
neuromagnetic responses
Neurons
physics of complex systems
Statistical analysis
time signal analysis
Visualization
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DOI10.1109/ITNT55410.2022.9848714

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Summary:In this work, we carry out a fractal analysis of visually evoked neuromagnetic responses of the human cerebral cortex in response to flickering light stimuli of different color combinations (red-blue, red-green, blue-green). The study uses magnetoencephalogram signals from healthy subjects recorded before and after exposure to stimuli. The modified Higuchi method is used to calculate the fractal dimension D . Spatiotemporal scaling is demonstrated on the basis of topographic maps and histograms. It has been shown that the inclusion of light stimuli leads to a significant reaction from almost all parts of the human cerebral cortex. The most significant change in the self-similar properties of the studied signals is observed for the frontal and occipital regions. The results obtained will be of interest to data science, neurophysiology and cognitive psychology.
DOI:10.1109/ITNT55410.2022.9848714