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Critical issues in state-of-the-art brain–computer interface signal processing

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Published 24 March 2011 2011 IOP Publishing Ltd
, , Citation Dean J Krusienski et al 2011 J. Neural Eng. 8 025002 DOI 10.1088/1741-2560/8/2/025002

1741-2552/8/2/025002

Abstract

This paper reviews several critical issues facing signal processing for brain–computer interfaces (BCIs) and suggests several recent approaches that should be further examined. The topics were selected based on discussions held during the 4th International BCI Meeting at a workshop organized to review and evaluate the current state of, and issues relevant to, feature extraction and translation of field potentials for BCIs. The topics presented in this paper include the relationship between electroencephalography and electrocorticography, novel features for performance prediction, time-embedded signal representations, phase information, signal non-stationarity, and unsupervised adaptation.

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10.1088/1741-2560/8/2/025002