Control a computer with your tongue?

This article talks about how Emma, a 12th grader at White Oaks Secondary School in Oakville,
Canada. She has made a tongue-controlled computer mouse that could fit in a paralyzed patient's
mouth. She used the mouth guards that football players use and modified it by making 5 holes, this
acts as a mouse four of the switches are for going up, down, left and right. The fifth switch acts as
a button as if you were cliking. This could help paralyzed people in the future to be able to use a
computer.

Supplied by Guillem D. 3ºY