P300 Based Brain Computer Interfaces: A Progress Report

Document Type

Conference Proceeding

Publication Date



Brain Computer Interface (BCI), P300, wheelchair-mounted robotic arm (WMRA)

Digital Object Identifier (DOI)



Brain-Computer Interfaces (BCI) are the only means of communication available to patients who are locked-in, that is for patients who are completely paralyzed yet are fully conscious. We focus on the status of the P300-BCI first described by Farwell and Donchin (1988). This system has now been tested with several dozen ALS patients and some have been using this approach for communication at a very extensive level. More recently, we have adapted this BCI (in collaboration with the laboratory of Dr. Rajiv Dubey) to the control of a robotic arm. In this presentation we will discuss the special problems of human computer interaction that occur within the context of such a BCI. The special needs of the users forced the development of variants of this system, each with advantages and disadvantages. The general principles that can be derived from the experience we have had with this BCI will be reviewed.

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Citation / Publisher Attribution

International Conference on Foundations of Augmented Cognition, v. 5638, p. 724-731