Talking off the top of your head: toward a mental prosthesis utilizing event-related brain potentials

LA Farwell, E Donchin�- Electroencephalography and clinical�…, 1988 - Elsevier
This paper describes the development and testing of a system whereby one can
communicate through a computer by using the P300 component of the event-related brain
potential (ERP). Such a system may be used as a communication aid by individuals who
cannot use any motor system for communication (eg,'locked-in'patients). The 26 letters of the
alphabet, together with several other symbols and commands, are displayed on a computer
screen which serves as the keyboard or prosthetic device. The subject focuses attention�…