Dr. Richard E. Cytowic, Professor of Neurology at George Washington University has studied synesthesia for more than thirty years. He has witnessed a paradigm shift in neuroscience during that time that has made his work in synesthesia more widely accepted. Thirty years ago, brain theory said that the brain was organized into modules that didn’t work together i.e. visual module, language module, hearing module. This theory made synesthesia impossible, even denied. Now neuroscientists know that the brain is massively cross connected and in a synesthete’s brain, there is an increased activity in the wiring.
Synesthesia is prevelant among creative people. Cytowic discusses notable composers and performers who were synesthetes: Franz Liszt, Rimsky-Korsakov, Eddie Van Halen. Itzhak Perlman, world renowned violinist for example, draws his bow over the G string he sees as forest green, and the A string as red. He has found synesthesia is common in blind people, Stevie Wonder case in point. Olivier Messiaen perceived sight and sound in a bi-directional manner which in his words “allowed music to write itself” like in his work The Orange Red Rocks from Canyon to the Stars. He used clusters of notes he perceived as colors. He saw three colors of chords: simple – red, green, blue; pairs – blue-violet, red-orange; overall color flecked or speckled with opalescent colors in them.
Synesthetes love color, and will describe what they see in exacting, minute detail. The theory is that the V4 area of brain, the color area, is not being stimulated optically but with other senses. That is one explanation as to why their sense of color is so precise and why they often see ugly, odd colors.




