the mind boggles...the world turns...dave gobel
Exp Brain Res 1999 Jan;124(2):223-32
The thought translation device: a neurophysiological approach to
communication in total motor paralysis.
Kubler A, Kotchoubey B, Hinterberger T, Ghanayim N, Perelmouter J, Schauer
M, Fritsch C, Taub E, Birbaumer N
[Medline record in process]
A thought translation device (TTD) for brain-computer communication is
described. Three patients diagnosed with amyotrophic lateral sclerosis
(ALS), with total motor paralysis, were trained for several months. In order
to enable such patients to communicate without any motor activity, a
technique was developed where subjects learn to control their slow cortical
potentials (SCP) in a 2-s rhythm, producing either cortical negativity or
positivity according to the task requirement. SCP differences between
Institute of Medical Psychology and Behavioral Neurobiology, University of
Tubingen, Germany.