Behavioral and Brain Sciences

Open Peer Commentary
Palmer: Color and consciousness

Disorder of colour consciousness: The view from neuropsychology

Glyn W. Humphreys a1 and M. Jane Riddoch a1
a1 Cognitive Science Research Centre, School of Psychology, University of Birmingham, Birmingham, B15 2TT, United Kingdom


We discuss the difficulty of measuring the perceptual experience of colour, supporting Palmer's assertion that neuropsychological disorders of colour processing can be informative in this respect. We point out that some disorders seem to affect the perceptual experience of colour over and above the perceptual processing of colour, providing direct insights into the neural mechanisms supporting perceptual experience.