Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

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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 ...

We often think of synesthetes as those people who associate say, colors with numbers. But the phenomenon can occur with any of the senses. Simply put, when one sense is activated, synesthesia causes ...

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.

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 ...