ArticleThe Journal of experimental biology2022
Colour discrimination thresholds vary throughout colour space in a reef fish (Rhinecanthus aculeatus).
Article in The Journal of experimental biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 20 citations in OpenAlex.
- Rapid Divergence of Visual Systems and Signaling Traits to Contrasting Light Regimes During Early Speciation of African Crater Lake Cichlid Fish.Molecular biology and evolution · 2025Article
- The fish challenge to vertebrate cognitive evolution.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Diel activity correlates with colour pattern morphology of heterobranch sea slugs.The Journal of animal ecology · 2025Article
- Diel activity correlates with colour pattern morphology of heterobranch sea slugs.The Journal of animal ecology · 2025Article
- Eyespot peek-a-boo: Leaf rolls enhance the antipredator effect of insect eyespots.The Journal of animal ecology · 2025Article
- Chemical defences indicate bold colour patterns with reduced variability in aposematic nudibranchs.Proceedings. Biological sciences · 2024Article
- Chemical defences indicate bold colour patterns with reduced variability in aposematic nudibranchs.Proceedings. Biological sciences · 2024Article
- Ultraviolet vision in anemonefish improves colour discrimination.The Journal of experimental biology · 2024Article
- Experimental evidence that cuckoos choose host nests following an egg matching strategy.Proceedings. Biological sciences · 2023Article
- Using colour pattern edge contrast statistics to predict detection speed and success in triggerfish (Rhinecanthus aculeatus).The Journal of experimental biology · 2022Article
- Colour discrimination thresholds vary throughout colour space in a reef fish (Rhinecanthus aculeatus).The Journal of experimental biology · 2022Article
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
Abstract
Animals use colour vision in a range of behaviours. Visual performance is limited by thresholds, which are set by noise in photoreceptors and subsequent neural processing. The receptor noise limited (RNL) model of colour discrimination is widely used for modelling colour vision and accounts well for experimental data from many species. In one of the most comprehensive tests yet of colour discrimination in a non-human species, we used Ishihara-style stimulus patterns to examine thresholds for 21 directions at five locations in colour space for the fish Rhinecanthus aculeatus. Thresholds matched RNL model predictions most closely for stimuli near the achromatic point, but exceeded predictions (indicating a decline in sensitivity) with distance from this point. Thresholds were also usually higher for saturation than for hue differences. These changes in colour threshold with colour space location and direction may give insight into photoreceptor non-linearities and post-receptoral mechanisms of colour vision in fish. Our results highlight the need for a cautious interpretation of the RNL model - especially for modelling colours that differ from one another in saturation (rather than hue), and for highly saturated colours distant from the achromatic point in colour space.
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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.