Approximately 1 in 20 people experience a kind of “mixing of the senses”, known as synesthesia. In the type of synesthesia we are investigating here, “grapheme‐color synesthesia” letters and numbers (collectively referred to as graphemes) automatically and involuntarily elicit color experiences (top section). This type of synesthesia affects approximately 1% of the population.
Advancing knowledge of human development, developmental disabilities, and neurodegenerative diseases.