ArticleProceedings. Biological sciences2016
Superior discrimination for hue than for saturation and an explanation in terms of correlated neural noise.
Article in Proceedings. Biological sciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 22 citations in OpenAlex.
- 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
- The carotenoid redshift: Physical basis and implications for visual signaling.Ecology and evolution · 2023Article
- Colour discrimination thresholds vary throughout colour space in a reef fish (Rhinecanthus aculeatus).The Journal of experimental biology · 2022Article
- Color perception and compensation in color deficiencies assessed with hue scaling.Vision research · 2021Article
- The relative contribution of color and material in object selection.PLoS computational biology · 2019Article
- Illumination discrimination for chromatically biased illuminations: Implications for color constancy.Journal of vision · 2019Article
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Authors and funding
2 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The precision of human colour discrimination depends on the region of colour space in which measurements are made and on the direction in which the compared colours-the discriminanda-differ. Working in a MacLeod-Boynton chromaticity diagram scaled so that thresholds at the white point were equal for the two axes, we made measurements at reference points lying on lines that passed at 45° or -45° through the white point. At a given reference chromaticity, we measured thresholds either for saturation (i.e. for discriminanda lying radially along the line passing through the white point) or for hue (i.e. for discriminanda lying on a tangent of a circle passing through the reference point and centred on the white point). The discriminanda always straddled the reference point in chromaticity. The attraction of this arrangement is that the two thresholds can be expressed in common units. All that differs between saturation and hue measurements is the phase with which the short-wave signal is combined with the long-/middle-wave signal. Except for chromaticities very close to the white point, saturation thresholds were systematically higher than hue thresholds. We offer a possible explanation in terms of correlated neural noise.
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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.