Adaptive time-frequency parametrization of epileptic EEG spikes
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Adaptive time-frequency approximations of signals have proven to be a valuable tool in EEG research, where it is believed that oscillatory phenomena play a crucial role in the brain's information processing. This paper extends this paradigm to the non-oscillating structures like the epileptic EEG spikes, and presents the advantages of their parametrization in general terms like amplitude and half-width. A simple detector of epileptic spikes in the space of these parameters, tested on a limited dataset, gives very promising results. It also provides a direct distinction between randomly occuring spikes or spike/wave complexes and rhytmic discharges.
Physical Review E 2004, accepted
Feb 20, 2004 02:40 AM
