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A Practical EMG-based Human-Computer Interface for Users with Motor Disabilities

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"A Practical EMG-based Human-Computer Interface for Users with Motor Disabilities", (2000)
Barreto, A. B. , Scott Scargle and Malek Adjouadi

ABSTRACT: This research pursues the development of an alternative human-computer interface for individuals with motor disabilities. In this interface the computer cursor is not controlled by a hand-held mouse. Instead the Electromyogram signals from the user's facial muscles are used for cursor control. Subjects/Procedures. The interface has been tried with able-bodied volunteers who did not use their hands to operate the computer during the trials. Four electrodes were placed noninvasively on the subjects' heads for the trials. Results. The test subjects successfully drove the cursor from any corner of the screen to its center, performing mouse clicks at the beginning and end of these excursions, in an average time of 16 seconds. Relevance to the Veterans Population. The performance achieved by test subjects during evaluation of this interface indicates its potential towards facilitating access of veterans with motor disabilities to the use of computers and computer networks.