Thought-activated computing

"The cyberpunk vision of a brain-computer interface becomes real -- as a boon
for the paralyzed."  

Up until a few months ago, J.R. -- a 53-year-old Georgia man who suffered a
cerebral hemorrhage last year -- communicated through a primitive system
involving blinks and an oversized alphabet. Now, simply by thinking about
moving his finger like a phantom digit, he's able to manipulate icons on a
computer screen. 

Read the entire article at:
http://www.salon.com/21st/feature/1998/11/23feature.html