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Performance analysis of multi-frequency SSVEP-BCI using clear and frosted colour LED stimuli

Mouli, Surej and Palaniappan, Ramaswamy and Sillitoe, Ian P and Gan, John Q (2013) Performance analysis of multi-frequency SSVEP-BCI using clear and frosted colour LED stimuli. In: 2013 IEEE 13th International Conference on Bioinformatics and Bioengineering (BIBE), 2013-11-10 - 2013-11-13.

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Among the many paradigms used in brain-computer interface (BCI), steady state visual evoked potential (SSVEP) offers the quickest response; however it is disadvantageous from the point of view of visual fatigue, which prevents subjects from prolonged usage of visual stimuli especially when LEDs are used. In this paper, we propose a visual stimulator using readily available RGB LEDs with clear and frosted glass, with the latter being tested for performance and qualitative user comfort using electroencephalogram (EEG) data from four subjects. Furthermore, we also compare frosted and clear stimuli for three colours Red, Green and Blue with frequency values of 7, 8, 9 and 10 Hz. The results using band-pass filtering and Fast Fourier Transform showed that 7 Hz Green clear LED stimuli gave the highest response in general, although all the subjects indicated that they were more comfortable with frosted LED stimuli. © 2013 IEEE.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Published proceedings: 13th IEEE International Conference on BioInformatics and BioEngineering, IEEE BIBE 2013
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 17 Dec 2014 14:05
Last Modified: 15 Jan 2022 00:44

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