Bad Pun, Interesting Research on Color Perception

From CogNews:

“Colour is a product of our nervous system–it is a pigment of our imagination. The colours that we see are more related to the materials that things are made of than the light reflected from them into our eyes. Making this happen involves many complex processes. One of the earliest involves seeing contrast between pairs of colours. We have found that this important step of seeing colour contrast happens much earlier in the brain than we had realised up to now.”