Studying Properties of Abnormal Human Brain Activity in Photosensitive Epilepsy Caused by Light Stimulation

Fractal features of neuromagnetic activity of the cerebral cortex in photosensitive epilepsy (PSE) before and after exposure to light flickering stimulus were studied. It was found that the dynamics of magnetoencephalographic signals of the PSE patient is characterized by higher values of the fracta...

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Published inBiomedical engineering Vol. 49; no. 4; pp. 236 - 239
Main Authors Panischev, O. Yu, Demin, S. A., Rusanova, I. A.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.11.2015
Springer
Springer Nature B.V
Subjects
Biomaterials
Biomedical engineering
Biomedical Engineering and Bioengineering
Brain
Cerebral cortex
Cortex (frontal)
Cortex (occipital)
Cortex (parietal)
Cortex (temporal)
Electroencephalography
Engineering
Epilepsy
Fractal analysis
Fractals
Light
Magnetoencephalography
Patients
Photosensitivity
Stimulation
Switching
Light Stimulus
Fractality Index
Human Cerebral Cortex
Fractal Dimensionality
Flicker Noise Spectroscopy
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Summary:Fractal features of neuromagnetic activity of the cerebral cortex in photosensitive epilepsy (PSE) before and after exposure to light flickering stimulus were studied. It was found that the dynamics of magnetoencephalographic signals of the PSE patient is characterized by higher values of the fractal index than in the control group. The most significant differences are revealed for the parietal, occipital, frontal, left parietal, and left temporal regions of the brain. Switching the stimulus led to a large-scale reaction of various regions of the cortex in the control group, while the patients showed a localized response.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0006-3398
1573-8256
DOI:10.1007/s10527-015-9537-3