Dynamics of EEG Entropy: beyond signal plus noise

Details Dynamics of EEG Entropy: beyond signal plus noise Dynamics of EEG Entropy: beyond signal plus noise

2009-02-06

arxiv.org/abs/0902.1113v1

Physics

Data Analysis, Statistics and Probability

Does the signal plus noise paradigm apply to Electroencephalograms? Detrended Fluctuations Analysis vs Diffusion Entropy

Scientific paper

EEG time series are analyzed using the diffusion entropy method. The resulting EEG entropy manifests short-time scaling, asymptotic saturation and an attenuated alpha-rhythm modulation. These properties are faithfully modeled by a phenomenological Langevin equation interpreted within a neural network context. Detrended fluctuation analysis of the EEG data is compared with diffusion entropy analysis and is found to suppress certain important properties of the EEG time series.

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