P300 brain-computer interface design for communication and control applications.

This paper introduces the design of a P300-based brain-computer interface (BCI) system. Based on this system, two applications are implemented: a word speller and a remote control device, which are to assist physically disabled people to communicate and control. A number of specific implementation techniques are proposed to achieve good performance in terms of accuracy and reliability. The word speller can achieve a spelling rate of up to 4-6 letters per minute, while both applications achieve 99% accuracy in our experiments with healthy subjects.