2021 - Bartel et al. - Current Biology.pdf (662.04 kB)
Colourfulness as a possible measure of object proximity in the larval zebrafish brain
journal contribution
posted on 2023-06-09, 23:38 authored by Philipp Bartel, Filip JaniakFilip Janiak, Daniel Colaco OsorioDaniel Colaco Osorio, Thomas BadenThomas BadenThe encoding of light increments and decrements by separate On- and Off- systems is a fundamental ingredient of vision, which supports edge detection and makes efficient use of the limited dynamic range of visual neurons. Theory predicts that the neural representation of On- and Off-signals should be balanced, including across an animal’s visible spectrum. Here we find that larval zebrafish violate this textbook expectation: in the zebrafish brain, UV-stimulation near exclusively gives On-responses, blue/green stimulation mostly Off-responses, and red-light alone elicits approximately balanced On- and Off-responses (see also references2, 3, 4). We link these findings to zebrafish visual ecology, and suggest that the observed spectral tuning boosts the encoding of object ‘colourfulness’, which correlates with object proximity in their underwater world.
Funding
EMBO Young Investigator Programme; G2920; EMBO-EUROPEAN MOLECULAR BIOLOGY ORGANIZATION; Baden
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
How to connect an eye to a brain; G3137; WELLCOME TRUST; WT Ref: 220277/
Anisotropic retinal circuits for processing of colour and space in nature - Lister Institute Research Prize; G2503; LISTER INSTITUTE
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
- Published version
Journal
Current BiologyISSN
0960-9822Publisher
ElsevierExternal DOI
Issue
5Volume
31Page range
R235-R236Event location
EnglandDepartment affiliated with
- Evolution, Behaviour and Environment Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2021-04-19First Open Access (FOA) Date
2021-04-19First Compliant Deposit (FCD) Date
2021-04-17Usage metrics
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