Rom Houben is a Belgium man who was completely paralyzed after an auto accident when he was 23 years old. Houben was believed to be in a vegetative state, but he was completely conscious and heard every word said around him. See update and new video below.
Only a re-evaluation of his case at the University of Liege discovered that he had lost control of his body but was still fully aware of what was happening.
He is never likely to leave hospital, but as well as his computer he now has a special device above his bed which lets him read books while lying down.