Smells and tastes really can be colourful. They can have textures and shapes. Colours can be sweet or sour. So can sounds. Changing the shape or texture of a food can change its taste, make it seem sweeter or more bitter. So can changing the dinner music.
In this burgeoning field of psychology, these are called crossmodal interactions, and they add up to a novel realization about how humans experience the world. The five traditional human senses — sight, hearing, smell, taste and touch — are not distinct pathways into consciousness. They are not separate ways of perceiving. They are intertwined, in some cases physiologically, in others psychologically.
Read more at the National Post: It’s not just about your tongue. New studies on taste find that sight, hearing, smell and touch intertwine