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color experience consciousness

A recurring conundrum in philosophy is the impossibility of sharing, or describing to a blind person, the subjective sensation of colour. Is my sensation of red the same as yours? Or do you see an entirely different hue that I cannot even dream of?

color perception grue

The Neitzes, with Katherine Mancuso and other colleagues, used the technique of gene therapy to introduce the gene for the missing red pigment into the cone cells of the monkeys’ retinas. Several months after the therapy, Dalton and Sam were able to see a world in which red hues were visible and oranges no longer looked like lemons, the researchers say in the current issue of Nature.

vision color genetics perception grue cogsci

Ravi Mehta and Rui (Juliet) Zhu believe the contrasting results have arisen from the fact that red is beneficial for some kinds of mental processing, while blue is beneficial for others.

cogsci color psychology

"Language requires the coordination of perceptually grounded categories with a socially-negotiated set of shared linguistic conventions to express them; i.e. language is based on shared groups of meanings that arise from our perceptual interaction with the external world and the way in which we convey that relationship to other human beings. Deacon’s opinion is that neurological predispositions and socio-ecological constraints sponsored the development and evolution of language, and that the subsequent feedback system gave rise to a complex coevolution of the two. Founded neurological determinism within evolutionary and socio-ecological boundaries drives the core of his argument." « Neuroanthropology

color vision evolution language Deacon azb

in list: Androids, Zombies and Brains