Synaesthesia can make people associate colours with words or concepts Qi Yang/Getty Images
For people with synaesthesia, hearing music may make them see a colour or feel a texture. The condition has now been reported for the first time in someone who was born blind, showing that vision isn’t necessary for synaesthesia to develop even though sight is involved in many cases of synaesthesia.
Roberto Bottini at the University of Trento in Italy and his colleagues studied a 40-year-old man who was born blind and who described his synaesthesia to them.
Bottini found the man by chance. “He was…
