What colour is H? Is 4 brighter than 9? For most people these questions might seem baffling, but not for people with grapheme-color synesthesia. In the first long-term childhood study on ...

People with color-grapheme synesthesia experience color when viewing written letters or numerals, usually with a particular color evoked by each grapheme (i.e., the letter 'A' evokes the color red).

A psychological phenomenon known as "grapheme-color synesthesia" describes individuals who experience vivid colors whenever they see, hear, or think of ordinary letters and digits. New research adds ...

Synesthesia is a condition in which sensory input from one cognitive stream gives rise to experience in another unstimulated cognitive stream. The most common forms of synesthesia include ...

For most people, the plain, black letters on this page are rather unremarkable. For less than four percent of the population however, these words are a little more colorful, tactile, or might even ...

For most people, colors are colors and words are words. There's no overlap. But for me, a "synesthete," colors and words are blended together. Monday is pink, September is yellow, the letter "J" is ...