Synesthesia (The Infinite Mind instant audio download)
To some people, sounds are visual, numbers are colored, and tastes have shapes. Listen to - perhaps even glimpse - the world of synesthesia, where the senses merge in ways that are just beginning to be understood. Includes interviews with Vladimir Nabokov's synesthetic son, Dimitri, and synesthesia researcher Peter Grossenbacher. Commentary by John Hockenberry.