Implementing Over 100 Command Codes for a High-Speed Hybrid Brain-Computer Interface Using Concurrent P300 and SSVEP Features.

IEEE Transactions on Bio-medical Engineering
Minpeng XuDong Ming

Abstract

Recently, electroencephalography (EEG)- based brain-computer interfaces (BCIs) have made tremendous progress in increasing communication speed. However, current BCI systems could only implement a small number of command codes, which hampers their applicability. This study developed a high-speed hybrid BCI system containing as many as 108 instructions, which were encoded by concurrent P300 and steady-state visual evoked potential (SSVEP) features and decoded by an ensemble task-related component analysis method. Notably, besides the frequency-phase-modulated SSVEP and time-modulated P300 features as contained in the traditional hybrid P300 and SSVEP features, this study found two new distinct EEG features for the concurrent P300 and SSVEP features, i.e., time-modulated SSVEP and frequency-phase- modulated P300. Ten subjects spelled in both offline and online cued-guided spelling experiments. Other ten subjects took part in online copy-spelling experiments. Offline analyses demonstrate that the concurrent P300 and SSVEP features can provide adequate classification information to correctly select the target from 108 characters in 1.7 seconds. Online cued-guided spelling and copy-spelling tests further show that the proposed BCI sy...Continue Reading

Citations

Jan 21, 2021·Frontiers in Computational Neuroscience·Ricardo Ron-AngevinLiliana Garcia
Dec 20, 2020·Sensors·Juan David Chailloux PegueroJavier M Antelis
Feb 18, 2021·Medical & Biological Engineering & Computing·Er Akshay Katyal, Rajesh Singla
May 5, 2021·Journal of Neural Engineering·Qiang SunWenfa Kang
Aug 6, 2021·Frontiers in Human Neuroscience·Sanghum WooMinkyu Ahn
Aug 29, 2021·Sensors·Danni Rodrigo De la Cruz-GuevaraEduardo Caicedo-Bravo
Aug 12, 2021·International Journal of Neural Systems·Hao SunAndrzej Cichocki

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Software Mentioned

Psychophysics Toolbox
MATLAB
SWLDA
SSVEP
mathop
Ensemble

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