Journal
JOURNAL OF NEURAL ENGINEERING
Volume 11, Issue 3, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1741-2560/11/3/035014
Keywords
brain-computer interface (BCI); electroencephalography (EEG); Laplacian EEG; tripolar concentric ring electrode (TCRE)
Categories
Funding
- NSF [10494, 0933596, 1157882]
- Directorate For Engineering
- Div Of Industrial Innovation & Partnersh [1157882] Funding Source: National Science Foundation
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0933596] Funding Source: National Science Foundation
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Objective. Brain-computer interfaces (BCIs) based on electroencephalography (EEG) have been shown to accurately detect mental activities, but the acquisition of high levels of control require extensive user training. Furthermore, EEG has low signal-to-noise ratio and low spatial resolution. The objective of the present study was to compare the accuracy between two types of BCIs during the first recording session. EEG and tripolar concentric ring electrode (TCRE) EEG (tEEG) brain signals were recorded and used to control one-dimensional cursor movements. Approach. Eight human subjects were asked to imagine either 'left' or 'right' hand movement during one recording session to control the computer cursor using TCRE and disc electrodes. Main results. The obtained results show a significant improvement in accuracies using TCREs (44%-100%) compared to disc electrodes (30%-86%). Significance. This study developed the first tEEG-based BCI system for real-time one-dimensional cursor movements and showed high accuracies with little training.
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