Researchers at the School of Computer and Electrical Engineering at Georgia Institute of Technology have created an input device that the user wears on their head and senses the movement of a small magnet that is placed on the tongue. The user moves his / her tongue in one of six positions to indicate their intentions similar to the movement of the mouse. Because the tongue is directly wired to the brain, by passing the spinal cord, the device is an excellent option for those with spinal cord injuries providing them with a method of controlling wheel chairs and computers. Sciencentral.com has the story here.
