- on Education & Information
- Published in issue 9/2008 on page 18
The Thought Cursor
Brain-computer interfaces and how they work
Controlling a computer using the power of thought alone is less far-fetched than you might believe. The easy part is to measure precisely the tiny currents in the brain associated with thought processes; the hard part is to extract the thoughts from the morass of multi-channel EEG (electroencephalogram) data.