We May See Color So We Can Understand Each Other
Blogger Alva Noë explores a study on vision finding that the narrow separation of bandwidth sensitivities of long- and medium-wave cones may be the best way for us to discriminate facial hues.
Humans and other primates see color thanks to three different kinds of cells in the retina.
By responding differently to short-, medium- and long-wavelength light, these cells provide the information the brain needs to figure out color in the environment.
This is how we do it. It's also how the birds and the bees do it.
But it turns out that our eyes do this imperfectly.
Whereas the cells in the eye of the birds
