Behavioral and Brain Sciences

Short Communication

Which colour space(s) is Shepard talking about?

Lieven Decock a1 and Jaap van Brakel a1
a1 Department of Philosophy, University of Leuven, 3000 Leuven, Belgium [email protected] [email protected]


Contra Shepard we argue, first, that his presentation of a three-dimensional representational (psychological or phenomenal) colour space is at odds with many results in colour science, and, second, that there is insufficient evidence for Shepard's stronger claim that the three-dimensionality of colour perception has resulted from natural selection, moulded by the particulars of the solar spectrum and its variations. [Shepard]