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mapa_bbm3i Who can benefit of such a communication system?

The answer can be found in subjects with some kind of sever motor impairment, such as subjects with amyotrophic lateral sclerosis or in a wheelchair. The communication is a process of cognitive nature. Hence this communication should not be limited by second order issues, such as the motor impairments, when the most important task is executed in the mind. Hence some researchers came up with definitions for this new communication system.


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The first contribution in 1973 by J. J. Vidal was "The BCI system is geared to use both the spontaneous EEG and the specific evoked responses triggered by time-dependent stimulation under various conditions for the purpose of controlling such external apparatus as e.g. prosthetic devices”. But, perhaps a most suitable one is the one from the researches J. R. Wolpaw, N. Birbaumer, D. J. McFarland, G. Pfurtscheller, y T. M. Vaughan “A direct brain-computer interface is a device that provides the brain with a new, non-muscular comunication and control channel”.