Please reply directly to Jane Huggins - janeh@umich.edu ORIGINAL MESSAGE: THOUGHT CONTROL COMPUTERS A neurologist at the New York State Department of Health is investigating how a brainwave signal, known as the mu rhythm, can control a computer cursor, moving it up if the signal is significantly higher voltage than the median and down if it is lower. In trying to manipulate his own mu, he found the cursor went up if he thought about smiling, chewing gum, swallowing or blinking his eyes. If he frowned or thought about squeezing a pen, the cursor went down. A test of 25 disabled volunteers resulted in 75% to 80% gaining up-and-down control of the cursor within a few hours. (Technology Review 10/94 p.19) RESPONSE: I am working on a research project that is also investigating a brain- computer interface for people with severe disabilities. I am familiar with the project that Wolpaw and McFarland are doing. There have been several papers published about it. If anyone is interested, I could point them to those papers. My research is trying to develop an interface which will have greater information transfer capabilities and greater accuracy. Jane Huggins janeh@umich.edu