ArticleJournal of vision2018
Illumination discrimination in the absence of a fixed surface-reflectance layout.
Article in Journal of vision, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed.
- Computational-observer analysis of illumination discrimination.Journal of vision · 2019Trial
- Color constancy mechanisms in virtual reality environments.Journal of vision · 2024Article
- Color constancy for daylight illumination changes in anomalous trichromats and dichromats.Journal of the Optical Society of America. A, Optics, image science, and vision · 2023Article
- Equivalent noise characterization of human lightness constancy.Journal of vision · 2022Article
- Temporal dynamics of daylight perception: Detection thresholds.Journal of vision · 2020Article
- Specular highlights improve color constancy when other cues are weakened.Journal of vision · 2020Article
- Illumination discrimination for chromatically biased illuminations: Implications for color constancy.Journal of vision · 2019Article
- The perception of colour and material in naturalistic tasks.Interface focus · 2018Review
- Characterization of human lightness discrimination thresholds for independent spectral variations.i-PerceptionArticle
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Previous studies have shown that humans can discriminate spectral changes in illumination and that this sensitivity depends both on the chromatic direction of the illumination change and on the ensemble of surfaces in the scene. These studies, however, always used stimulus scenes with a fixed surface-reflectance layout. Here we compared illumination discrimination for scenes in which the surface reflectance layout remains fixed (fixed-surfaces condition) to those in which surface reflectances were shuffled randomly across scenes, but with the mean scene reflectance held approximately constant (shuffled-surfaces condition). Illumination discrimination thresholds in the fixed-surfaces condition were commensurate with previous reports. Thresholds in the shuffled-surfaces condition, however, were considerably elevated. Nonetheless, performance in the shuffled-surfaces condition exceeded that attainable through random guessing. Analysis of eye fixations revealed that in the fixed-surfaces condition, low illumination discrimination thresholds (across observers) were predicted by low overall fixation spread and high consistency of fixation location and fixated surface reflectances across trial intervals. Performance in the shuffled-surfaces condition was not systematically related to any of the eye-fixation characteristics we examined for that condition, but was correlated with performance in the fixed-surfaces condition.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.