Belgium's Rom Houben uses his touchscreen and assistance of his speech therapist Linda Wouters, left, to communicate during an interview at the service center ' t Weyerke in Zolder, Belgium, Tuesday, Nov. 24, 2009. Houben was misdiagnosed for 23 years as being in a coma until a doctor at Liege University discovered three years ago that Houben's brain was still functioning. Houben was diagnosed as being in a vegetative state following a car crash in 1983. The discovery took place three years ago but only recently came to light, after publication of a study on the misdiagnosis of people with consciousness disorders.