Title :
An EEG-based cursor control system
Author :
Ming, Cheng ; Shangkai, Gao
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
Describes an experimental brain-computer interface (BCI) which allows severely disabled persons to move the cursor on the screen. The system is based on the detecting of steady-state visual evoked potential (SSVEP). Four rectangular blocks around the cursor indicate four directions and flash at different frequencies on the screen. Once the subject fixates on one of the blocks, the specific SSVEP is obtained SSVEP signal is processed online to determine which block the eyes are focusing. As a feedback, the cursor can be moved in corresponding directions. Preliminary results are presented and evaluated
Keywords :
electroencephalography; feedback; handicapped aids; user interfaces; visual evoked potentials; EEG-based cursor control system; experimental brain-computer interface; flashing cursor; rectangular blocks; severely disabled persons; steady-state visual evoked potential detection; Band pass filters; Brain; Computerized monitoring; Control systems; Electroencephalography; Eyes; Feedback; Scalp; Signal processing; Steady-state;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802747
