Individual differences in color constancy explain why people saw the dress differently
Individual differences in color constancy—specifically how the brain estimates and discounts the illuminant in an ambiguous image—explain why observers perceived #thedress differently.
Papers [4] and [8] directly investigate the phenomenon of #thedress and explicitly conclude that individual differences in color constancy and illuminant estimation underlie the conflicting color perceptions.
Retter TL, Gwinn OS, O'Neil SF, Jiang F, Webster MA. Neural correlates of perceptual color inferences as revealed by #thedress.. 2020. https://doi.org/10.1167/jov.20.3.7
The study demonstrates that individual differences in perceiving #thedress as blue-black versus white-gold stem from higher-level color constancy inferences and blue-bias decoding.
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Morimoto T, Fukuda K, Uchikawa K. Explaining #theShoe based on the optimal color hypothesis: The role of chromaticity vs. luminance distribution in an ambiguous image.. 2021. https://doi.org/10.1016/j.visres.2020.10.007
The research confirms that #thedress and similar ambiguous stimuli involve color constancy problems where different observers estimate different illuminants.
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