Wavelet analysis of epileptic spikes

Details Wavelet analysis of epileptic spikes Wavelet analysis of epileptic spikes

2003-01-27

arxiv.org/abs/physics/0301065v1

Physics

Biological Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevE.67.052902

Interictal spikes and sharp waves in human EEG are characteristic signatures of epilepsy. These potentials originate as a result of synchronous, pathological discharge of many neurons. The reliable detection of such potentials has been the long standing problem in EEG analysis, especially after long-term monitoring became common in investigation of epileptic patients. The traditional definition of a spike is based on its amplitude, duration, sharpness, and emergence from its background. However, spike detection systems built solely around this definition are not reliable due to the presence of numerous transients and artifacts. We use wavelet transform to analyze the properties of EEG manifestations of epilepsy. We demonstrate that the behavior of wavelet transform of epileptic spikes across scales can constitute the foundation of a relatively simple yet effective detection algorithm.

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