Belgium's neurologist Steven Laureys attends an interview at the University of Liege November 24, 2009. Laureys discovered three years ago that Rom Houben's brain was still functioning. Belgian Rom Houben, 46, had been misdiagnosed for 23 years as being in a coma. Houben was diagnosed as being in a vegetative state following a car crash in 1983. REUTERS/Sebastien Pirlet (BELGIUM SOCIETY SCI TECH IMAGES OF THE DAY HEALTH) Tue Nov 24, 9:06 AM ET