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The retinal basis of vertebrate color vision
journal contribution
posted on 2023-06-09, 20:16 authored by Thomas BadenThomas Baden, Daniel Colaco OsorioDaniel Colaco OsorioThe jawless fish that were ancestral to all living vertebrates had four spectral cone types that were probably served by chromatic-opponent retinal circuits. Subsequent evolution of photoreceptor spectral sensitivities is documented for many vertebrate lineages, giving insight into the ecological adaptation of color vision. Beyond the photoreceptors, retinal color processing is best understood in mammals, especially the blue system, which opposes short- against long-wavelength receptor responses. For other vertebrates that often have three or four types of cone pigment, new findings from zebrafish are extending older work on teleost fish and reptiles to reveal rich color circuitry. Here, horizontal cells establish diverse and complex spectral responses even in photoreceptor outputs. Cone-selective connections to bipolar cells then set up color-opponent synaptic layers in the inner retina, which lead to a large variety of color-opponent channels for transmission to the brain via retinal ganglion cells.
Funding
Optical Electrophysiology: Establishing fluorescence voltage imaging capability at Sussex Neuroscience; G2018; MRC-MEDICAL RESEARCH COUNCIL
Anisotropic retinal circuits for processing of colour and space in nature - Lister Institute Research Prize; G2503; LISTER INSTITUTE
Philip Leverhulme Prize - Biological Sciences; G2276; LEVERHULME TRUST; PLP-2017-005
Anisotropic retinal circuits for processing of colour and space in nature; G2397; BBSRC-BIOTECHNOLOGY & BIOLOGICAL SCIENCES RESEARCH COUNCIL; BB/R014817/1
A window into the fly brain: "dual imaging" of neural circuits involved in locomotor behaviour in Drosophila; G2180; MRC-MEDICAL RESEARCH COUNCIL; MC_PC_15071
NeuroVisEco - Zebrafish vision in its natural context: from natural scenes through retinal and central processing to behaviour; G1871; EUROPEAN UNION; 677687
History
Publication status
- Published
File Version
- Accepted version
Journal
Annual Review of Vision ScienceISSN
2374-4650Publisher
Annual ReviewsVolume
5Page range
177-200Department affiliated with
- Neuroscience Publications
Research groups affiliated with
- Sussex Neuroscience Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2020-01-16First Compliant Deposit (FCD) Date
2020-01-16Usage metrics
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