TY - JOUR
T1 - Relaxation and phase space singularities in time series of human magnetoencephalograms as indicator of photosensitive epilepsy
AU - Yulmetyev, R. M.
AU - Hänggi, P.
AU - Yulmetyeva, D. G.
AU - Shimojo, S.
AU - Khusaenova, E. V.
AU - Watanabe, K.
AU - Bhattacharya, J.
N1 - Funding Information:
This work was supported by the Grants of RFBR N 05-02-16639a, Ministry of Education and Science of Russian Federation N 2.1.1.741 (R.Y., D.Y., and E.K.) and JST. Shimojo ERATO project (J.B., K.W., and S.S.).
PY - 2007/9/15
Y1 - 2007/9/15
N2 - To analyze the crucial role of fluctuation and relaxation effects for the function of the human brain we studied some statistical quantifiers that support the information characteristics of neuromagnetic brain responses (magnetoencephalogram, MEG). The signals to a flickering stimulus of different color combinations have been obtained from a group of control subjects which is then contrasted with those of a patient suffering photosensitive epilepsy (PSE). We found that the existence of the specific stratification of the phase clouds and the concomitant relaxation singularities of the corresponding nonequilibrium dynamics of the chaotic behavior of the signals in separate areas in a patient provide likely indicators for the zones which are responsible for the appearance of PSE.
AB - To analyze the crucial role of fluctuation and relaxation effects for the function of the human brain we studied some statistical quantifiers that support the information characteristics of neuromagnetic brain responses (magnetoencephalogram, MEG). The signals to a flickering stimulus of different color combinations have been obtained from a group of control subjects which is then contrasted with those of a patient suffering photosensitive epilepsy (PSE). We found that the existence of the specific stratification of the phase clouds and the concomitant relaxation singularities of the corresponding nonequilibrium dynamics of the chaotic behavior of the signals in separate areas in a patient provide likely indicators for the zones which are responsible for the appearance of PSE.
KW - Discrete non-Markov stochastic processes
KW - Human brain
KW - Magnetoencephalograms
KW - Photosensitive epilepsy
KW - Relaxation and phase space singularities
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U2 - 10.1016/j.physa.2007.04.046
DO - 10.1016/j.physa.2007.04.046
M3 - Article
AN - SCOPUS:34447294035
SN - 0378-4371
VL - 383
SP - 443
EP - 454
JO - Physica A: Statistical Mechanics and its Applications
JF - Physica A: Statistical Mechanics and its Applications
IS - 2
ER -