Nonlinear denoising of transient signals with application to event related potentials

Details Nonlinear denoising of transient signals with application to event related potentials Nonlinear denoising of transient signals with application to event related potentials

2000-01-28

arxiv.org/abs/physics/0001069v1

Physics

Data Analysis, Statistics and Probability

16 pages, Postscript, 6 figures, Physica D in press

Scientific paper

10.1016/S1386-9477(00)00111-9

We present a new wavelet based method for the denoising of {\it event related potentials} ERPs), employing techniques recently developed for the paradigm of deterministic chaotic systems. The denoising scheme has been constructed to be appropriate for short and transient time sequences using circular state space embedding. Its effectiveness was successfully tested on simulated signals as well as on ERPs recorded from within a human brain. The method enables the study of individual ERPs against strong ongoing brain electrical activity.

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