What Happens When You Can't Recognize Faces?

Sometimes I have trouble associating names with faces but I'm not as bad as Oliver Sacks, a British neurologist and author, who can't recognize any face, including his own. Scientifically speaking, Sacks suffers from a disorder called prosopagnosia, which is a disorder of face perception where the ability to recognize… » 3/01/11 8:20pm 3/01/11 8:20pm