Conference Proceedings


Richard Reilly
Edmund Lalor



brain computer interface eeg spatial selective attention bci gating alpha bit rate alpha band

Independent brain computer interface control using visual spatial attention-dependent modulations of parieto-occipital alpha (2005)

Abstract Parieto-occipital alpha band (8-14 Hz) EEG activity was examined daring a spatial attention-based brain computer interface paradigm for its potential use as a feature for left/right spatial attention classification. In this paradigm 64-channel EEG data were recorded from subjects who covertly attended to a sequence of letters superimposed on a flicker stimulus in one visual field while ignoring a similar stimulus in the opposite visual field. Increases in alpha band activity were observed over parieto-occipital cortex contralateral to the location of the ignored stimulus, consistent with previous reports, and the subsequent use of alpha band power over bilateral parieto-occipital sites as a feature yielded an average classification accuracy of 73% across 10 subjects, with highest 87%. The highest achievable bit rate from these data is 7.5 bits/minute
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Full list of authors on original publication

Richard Reilly, Edmund Lalor

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Richard Reilly
Trinity College Dublin
Total Publications: 183
Edmund C Lalor
Trinity College Dublin
Total Publications: 52