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Biol Cybern. 2000 Jul;83(1):35-45.

Short-window spectral analysis of cortical event-related potentials by adaptive multivariate autoregressive modeling: data preprocessing, model validation, and variability assessment.

Author information

1
Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton 33431, USA. ding@fau.edu

Abstract

In this article we consider the application of parametric spectral analysis to multichannel event-related potentials (ERPs) during cognitive experiments. We show that with proper data preprocessing, Adaptive MultiVariate AutoRegressive (AMVAR) modeling is an effective technique for dealing with nonstationary ERP time series. We propose a bootstrap procedure to assess the variability in the estimated spectral quantities. Finally, we apply AMVAR spectral analysis to a visuomotor integration task, revealing rapidly changing cortical dynamics during different stages of task processing.

PMID:
10933236
DOI:
10.1007/s004229900137
[Indexed for MEDLINE]

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