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Detection of seizure onset using wavelet analysis
Conference proceeding

Detection of seizure onset using wavelet analysis

S Mehta, B Onaral and R Koser
Proceedings of 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, v 2, pp 1220-1221
1994

Abstract

Band pass filters Biomedical engineering Biomedical monitoring Discrete wavelet transforms Electroencephalography Fluctuations Frequency Signal processing Wavelet analysis Wavelet coefficients
The spectrum of the normal electroencephalogram (EEG) follows an inverse power law attenuation over a band of clinically relevant frequencies. This suggests that EEG exhibits self-similar fluctuations over a multiplicity of scales, hence, can be characterized by measures which capture the scale-invariant nature of the signal. Here, the authors investigate the use of the discrete wavelet transform as a multiscale decomposition tool to monitor the statistical scale invariant properties of the EEG in long-term monitoring aimed to localize epileptic foci. The objective is to detect the onset of seizure marked by the loss of scale-invariance.

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Engineering, Biomedical
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