Title: Frequency- and Phase Encoded SSVEP Using Spatiotemporal Beamforming
Authors: Wittevrongel, Benjamin ×
Van Hulle, Marc #
Issue Date: 3-Aug-2016
Publisher: Public Library of Sciene
Series Title: PLoS One vol:11 issue:8
Article number: e0159988
Abstract: In brain-computer interfaces (BCIs) based on steady-state visual evoked potentials (SSVEPs) the number of selectable targets is rather limited when each target has its own stimulation frequency. One way to remedy this is by combining frequency- with phase encoding. We introduce a new multivariate spatiotemporal filter, based on Linearly Constrained Minimum Variance (LCMV) beamforming, for discriminating between frequency-phase encoded targets more accurately, even when using short signal lengths than with (extended) Canonical Correlation Analysis (CCA), which is traditionally posited for this stimulation paradigm.
ISSN: 1932-6203
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Research Group Neurophysiology
Laboratory for Neuro- and Psychofysiology
× corresponding author
# (joint) last author

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