Automatic Artefact Removal from Event-related Potentials via Clustering

Article

DOI: 10.1007/s11265-006-0011-z

Cite this article as:
Nicolaou, N. & Nasuto, S.J. J VLSI Sign Process Syst Sign Im (2007) 48: 173. doi:10.1007/s11265-006-0011-z

Abstract

This paper outlines a method for automatic artefact removal from multichannel recordings of event-related potentials (ERPs). The proposed method is based on, firstly, separation of the ERP recordings into independent components using the method of temporal decorrelation source separation (TDSEP). Secondly, the novel lagged auto-mutual information clustering (LAMIC) algorithm is used to cluster the estimated components, together with ocular reference signals, into clusters corresponding to cerebral and non-cerebral activity. Thirdly, the components in the cluster which contains the ocular reference signals are discarded. The remaining components are then recombined to reconstruct the clean ERPs.

Keywords

event-related potentials auto-mutual information clustering EEG automatic artefact removal 

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.CIRG, School of Systems EngineeringUniversity of ReadingReadingUK