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| Title | Detection of Hand Extension Movements in the Context of a 3-State Asynchronous Brain Interface |
| Publication Type | Conference Paper |
| Year of Publication | 2006 |
| Authors | Bashashati, A., R. K. Ward, and G. E. Birch |
| Conference Name | Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on |
| Pagination | V -V |
| Date Published | may. |
| Keywords | 2-state LF-ASD, 3-state asynchronous brain interface, direct brain interface, EEG, electroencephalography, error characteristics, false positive rates, finger movement, hand extension movement detection, low-frequency asynchronous switch design, medical signal detection, system-defined periods |
| Abstract | The low-frequency asynchronous switch design (LF-ASD) is a direct brain interface (BI) that detects the presence of a specific finger movement in the ongoing EEG. Asynchronous interfaces have the advantage of being operational at all times and not only at specific system-defined periods. In this paper, we present the design of a 3-state asynchronous BI for the detection of two different movements from the ongoing EEG. The proposed 3-state asynchronous BI detects right and left hand extensions. Using data collected from two able-bodied individuals, it is shown that the error characteristics of the new system in detecting the presence of movement are significantly better than the 2-state LF-ASD, with true positive rate increases of up to 22.4% for false positive rates in the 1-2% range. An average performance of 61.5% was achieved in differentiating between left and right hand movements |
| URL | http://dx.doi.org/10.1109/ICASSP.2006.1661421 |
| DOI | 10.1109/ICASSP.2006.1661421 |