Article

The effects of color on brightness

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Abstract

Observation of human subjects shows that the spectral returns of equiluminant colored surrounds govern the apparent brightness of achromatic test targets. The influence of color on brightness provides further evidence that perceptions of luminance are generated according to the empirical frequency of the possible sources of visual stimuli, and suggests a novel way of understanding color contrast and constancy.

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Acknowledgements

We thank David Coppola, David Fitzpatrick, Don Katz, Tom Polger, Len White and Mark Williams for helpful criticism. This work was supported by NIH grant #NS12987.

Author information

Affiliations

  1. Department of Neurobiology, Box 3209, Duke University Medical Center, Durham, North Carolina 27710 , USA

    • R. Beau Lotto
    •  & Dale Purves

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Corresponding author

Correspondence to Dale Purves.