Sparse time artifact removal

Journal of Neuroscience Methods
Alain de Cheveigné

Abstract

Muscle artifacts and electrode noise are an obstacle to interpretation of EEG and other electrophysiological signals. They are often channel-specific and do not fully benefit from component analysis techniques such as ICA, and their presence reduces the dimensionality needed by those techniques. Their high-frequency content may mask or masquerade as gamma band cortical activity. The sparse time artifact removal (STAR) algorithm removes artifacts that are sparse in space and time. The time axis is partitioned into an artifact-free and an artifact-contaminated part, and the correlation structure of the data is estimated from the covariance matrix of the artifact-free part. Artifacts are then corrected by projection of each channel onto the subspace spanned by the other channels. The method is evaluated with both simulated and real data, and found to be highly effective in removing or attenuating typical channel-specific artifacts. In contrast to the widespread practice of trial removal or channel removal or interpolation, very few data are lost. In contrast to ICA or other linear techniques, processing is local in time and affects only the artifact part, so most of the data are identical to the unprocessed data and the full dimen...Continue Reading

References

Jan 1, 1990·Brain Topography·Z J KolesS Z Zhou
Feb 1, 1989·Electroencephalography and Clinical Neurophysiology·F PerrinJ F Echallier
Aug 10, 2000·Psychophysiology·M JunghöferB Rockstroh
Sep 2, 2003·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·I I GoncharovaJ R Wolpaw
Dec 14, 2004·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Dennis J McFarlandJonathan R Wolpaw
Dec 16, 2006·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Mehrdad FatourechiGary E Birch
Jun 19, 2007·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Emma M WhithamJohn O Willoughby
Jul 13, 2007·Journal of Neuroscience Methods·Alain de Cheveigné, Jonathan Z Simon
Oct 30, 2007·Journal of Neuroscience Methods·Alain de Cheveigné, Jonathan Z Simon
Jan 30, 2008·Annals of Biomedical Engineering·Maite Crespo-GarciaJose L Cantero
Mar 11, 2008·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Emma M WhithamJohn O Willoughby
May 10, 2008·Neuron·Shlomit Yuval-GreenbergLeon Y Deouell
May 13, 2008·Journal of Neuroscience Methods·Alain de Cheveigné, Jonathan Z Simon
Feb 14, 2009·Brain Topography·Alexander J ShackmanRichard J Davidson
May 9, 2009·IEEE Transactions on Bio-medical Engineering·Moritz Grosse-WentrupMartin Buss
Oct 17, 2009·NeuroImage·Brenton W McMenaminRichard J Davidson
Mar 20, 2010·Journal of Neuroscience Methods·Alain de Cheveigné
Jul 27, 2010·Journal of Neuroscience Methods·H NolanR B Reilly
Oct 29, 2010·NeuroImage·Brenton W McMenaminRichard J Davidson
Nov 15, 2011·NeuroImage·Alain de Cheveigné
Jan 14, 2012·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Junshui MaVladimir Svetnik
Apr 19, 2013·Frontiers in Human Neuroscience·Suresh D Muthukumaraswamy
Apr 10, 2014·Frontiers in Human Neuroscience·Pedro M R ReisMatthias Lochmann
Jul 6, 2014·NeuroImage·Alain de Cheveigné, Lucas C Parra
Jul 30, 2014·Frontiers in Human Neuroscience·Gizem YilmazKemal S Türker

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Citations

Dec 14, 2016·International Journal of Audiology·Birger Kollmeier, Jürgen Kiessling
Jul 17, 2019·Computer Methods in Biomechanics and Biomedical Engineering·Antonietta SorrisoFabio Baselice
Apr 4, 2019·Frontiers in Neuroscience·Emina AlickovicLennart Ljung

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