In a 1913 article in the The Journal of Abnormal Psychology, Isador Coriat describes a case of “colored pain,” which is still considered a rare form of synesthesia. These synesthetes perceive colors ...

I have a form of time–space synesthesia, so the new year arrives for me in a very physical way. I feel myself move around the year, almost like I'm traveling along a structure. December sits low and ...

A person hears a piece of music and, at the same time, sees a deep blue colour. Another reads a word and senses a light taste, as if flavour ...