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The Harvard Review of Philosophy

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published on July 28, 2020

Will Davies

Colour Relations in Black and White

I argue that it is possible to perceptually represent colour relations between two objects, without perceptually representing their colours. Such primitive relational colour representation (PRCR) goes against the orthodox view that we represent colour relations by virtue of representing colours. I first argue that under certain assumptions, PRCR is conceptually and even nomically possible. I then compare two possible models of PRCR: the linguaform model and chromatic edge model, the latter involving iconic rather than discursive representation. I argue that the chromatic edge model gives a better account of putative cases of PRCR in cerebral achromatopsia, a rare disorder of colour consciousness.

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