ArticleeLife2026
Comprehensive characterization of human color discrimination thresholds.
Article in eLife, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Color discrimination in action: High-throughput measurement in immersive VR.Journal of vision · 2026Article
- An empirical three-dimensional metric field for color space.Journal of vision · 2026Article
- Article
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Authors and funding
8 authors.
Funding
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Abstract
Color discrimination thresholds-the smallest detectable color differences-provide a benchmark for models of color vision, enable quantitative evaluation of eye diseases, and inform the design of display technologies. Despite their importance, a comprehensive characterization of these thresholds has long been considered intractable due to the psychophysical curse of dimensionality. Here, we address this challenge using a novel semiparametric Wishart process psychophysical model (WPPM), which leverages the feature that the internal noise limiting color discrimination varies smoothly across stimulus space. The model was fit to data collected with a nonparametric adaptive trial-placement procedure, enabling efficient stimulus selection. Together, through the combination of adaptive trial placement and post hoc WPPM fitting, we achieved a comprehensive characterization of color discrimination in the isoluminant plane with only ∼6000 trials per participant (
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