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Interleaving distribution of multifractal strength of 16-channel EEG signals |
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| Authors: | |
| Institution: | (1) Institute for Biomedical Electronic Engineering, institute of Acoustics and Department of Electronic Science & Engineering, Nanjing University, 210093 Nanjing, China;(2) Department of Physics, Nanjing Normal University, 210097 Nanjing, China;(3) State Key Laboratory of Vibration, Shock & Noise, Shanghai Jiao tong University, 300030 Shanghai, China;(4) Electroencephalogram Office, Nanjing Brain Hospital, 210023 Nanjing, China |
| Abstract: | Multifractal characteristics of 16-channel hu-man electroencephalogram (EEG) signals under eye-closed rest are analyzed for the first time. The result shows that the EEGs from the different sites on the scalp have different multifractal characteristics and the multifractal strength value a exhibits a kind of interleaving and left-right oppo-site distribution on scalp. This distribution rule is consistent with the localization of function and the lateralization theory in physiology. So Da can become an effective parameter to describe the brain potential character. And such a a stable distribution rule on sites of the scalp means a classic cerebral cortex active state. |
| Keywords: | multifractal EEG brain nonlinear dynamics |
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