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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/19659

Title: Independent brain computer interfacing control using visual spatial attention-dependent modulations of parieto-occipital alpha
Other Titles: International IEEE EMBS Conference on Neural Engineering: 2nd: 2005
Author: LALOR, EDMUND
REILLY, RICHARD
Author's Homepage: http://people.tcd.ie/lalored
http://people.tcd.ie/reillyri
Keywords: electroencephalography
BCI
EEG
spatial selective attention
alpha
gating
Issue Date: 2005
Citation: Kelly, S. P., Lalor, E., Reilly, R. B., and Foxe, J. J., Independent brain computer interfacing control using visual spatial attention-dependent modulations of parieto-occipital alpha.: [in] proceedings of the 2nd International IEEE EMBS Conference on Neural Engineering, 16-19, 2005, pp667-670
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
Description: PUBLISHED
URI: http://ieeexplore.ieee.org/iel5/9720/30683/01419713.pdf?tp=&isnumber=&arnumber=1419713
http://hdl.handle.net/2262/19659
Appears in Collections:Electronic & Electrical Eng (Scholarly Publications)

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