Rom Houben

Rom Houben (born 1963) is a Belgian man who is in a coma and was falsely thought to have the ability to type through facilitated communication. Houben was thought to be comatose and in a vegetative state for 23 years after a near-fatal automobile accident. However, many caregivers said he was conscious and paralyzed during the entirety of his hospital stay. 
In 2010, the claim that Houben was able to talk was rejected when communication could not be repeated with a different facilitator and by hiding the object to be identified from the view of the facilitator.