Richard Cytowic, a pioneering researcher who returned synesthesia to mainstream science, traces the historical evolution of our understanding of the phenomenon. By Richard E. Cytowic / MIT Press ...

Vladimir Nabokov first noticed, at age 7, his special gift of synesthesia when playing with colorful alphabet blocks that "were all the wrong color." Source: Contributor: Neil Overy/Alamy Stock Photo.

Ever since I can remember, numbers have appeared to me in specific colors. The number 2 is baby pink, 3 is sunshine yellow, 4 is royal blue-the list goes on. Its not just that they look a certain way, ...

Synesthesia is a neurological condition in which the stimulation of one sensory input inadvertently creates an automatic secondary sensation. Over 60 examples of synesthesia exist, with the most ...

Brooke Bhola, 24, has always associated letters with colors. When she sees a U, it’s yellow. The letter N is light blue. And T is orange. She thought these sensations were unique to her until she ...