Behavioral and Brain Sciences

Open Peer Commentary
Palmer: Color and consciousness

Out of sight but not out of mind: Isomorphism and absent qualia

Robert Van Gulick a1
a1 Department of Philosophy, Syracuse University, Syracuse, NY 12344-1170


The isomorphism constraint places plausible limits on the use of third-person evidence to explain color experience but poses no difficulty for functionalists; they themselves argue for just such limits. Palmer's absent qualia claim is supported by neither the Color Machine nor Color Room examples. The nature of color experience depends on relations external to the color space, as well as internal to it.