David Papineau - There is a brain mechanism that works to identify colour differences direct

There is a brain mechanism that works to identify colour differences directly, without first identifying the absolute colour of each surface. So on my view there is no reason to suppose anything like ten million colour responses to surface viewed singly.

- David Papineau

source: "Physical". Interview with Richard Marshall, www.3ammagazine.com. April 8, 2013.