Synaesthesia, or mixed sensory perception, leads people to "see" smells or "hear" colours. Why does this occur and what does this tell us about brain function?
- Each of our senses has different receptors, and are normally processed in separate, dedicated cortexes of the brain.
- Synaesthesia is a condition where different senses mix.
- Synaesthetes may taste words, or hear colours.
- Famous synaesthetes include painter David Hockney and musician Duke Ellington.
Each of our senses has different receptors:
Eyes to see, ears to hear, noses to smell, and tongues to taste.
But what if you could see sounds as colours, or taste words that you hear?
"Edgware road, it's a sausage flavour."
What if you could mix your senses?
"And go on in blocks, ...