Reply to philipona and O'Regan


This paper responds to Philipona & O’Regan (2006), which attempts to account for certain color phenomena by appeal to singularities in the space of “accessible information” in the light striking the retina. Three points are discussed. First, it is unclear what the empirical significance/import is of the mathematical analysis of the data regarding the accessible information in the light. Second, the singularity index employed in the study is both mathematically and empirically faulty. Third, the connection drawn between their findings and some data from the World Color Survey is lacking in quantitative analysis in places where it is needed. The difficulties raised prevent Philipona & O’Regan’s conclusions from being accepted.



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Wayne Wright
California State University, Long Beach

Citations of this work

Where Do the Unique Hues Come From?Justin Broackes - 2011 - Review of Philosophy and Psychology 2 (4):601-628.
The Myth of Unique Hues.Radek Ocelák - 2015 - Topoi 34 (2):513-522.

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Focal Color Variability and Unique Hue Stimulus Variability.Rolf Kuehni - 2005 - Journal of Cognition and Culture 5 (3-4):409-426.

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