Cited by 222Visual perception and processing mechanismsZebrafish Biomedical Research ApplicationsVestibular and auditory disorders

Visuomotor behaviors in larval zebrafish after GFP-guided laser ablation of the optic tectum

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Roeser, Tobias, Baier, Herwig·2003·The Journal of Neuroscience

Abstract

The optic tectum is the largest visual center in most vertebrates and the main target for retinal ganglion cells (RGCs) conveying visual information from the eye to the brain. The retinotectal projection has served as an important model in many areas of developmental neuroscience. However, knowledge of the function of the tectum is limited. We began to address this issue using laser ablations and subsequent behavioral testing in zebrafish. We used a transgenic zebrafish line that expresses green-fluorescent protein in RGCs projecting to the tectum. By aiming a laser beam at the labeled retinal fibers demarcating the tectal neuropil, the larval tectum could be selectively destroyed. We tested whether tectum-ablated zebrafish larvae, when presented with large-field movements in their surroundings, displayed optokinetic responses (OKR) or optomotor responses (OMR), two distinct visuomotor behaviors that compensate for self-motion. Neither OKR nor OMR were found to be dependent on intact retinotectal connections. Also, visual acuity remained unaffected. Tectum ablation, however, slowed down the OKR by reducing the frequency of saccades but left tracking velocity, gain, and saccade amplitude unaffected. Removal of the tectum had no effect on the processing of second-order motion, to which zebrafish show both OKR and OMR, suggesting that the tectum is not an integral part of the circuit that extracts higher-order cues in the motion pathway.

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Crossref · 10.1523/jneurosci.23-09-03726.2003

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  • The OMR continues even without the optic tectum.

    “The OMR is known to persist in the absence of the optic tectum, the largest of these processing areas (Roeser and Baier, 2003)”

    From Neural control and modulation of swimming speed in the larval zebrafish (2014) · cites this paper as Roeser and Baier, 2003

    The OMR results report that most larval zebrafish retained a vigorous response after bilateral tectum ablation. But the “OMR without a tectum” section specifies that the ablation left deeper parts of the tectum intact, so the paper does not establish persistence in the complete absence of the optic tectum. Page numbers were not provided in our copy. (LLM, conf=0.88)

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Authors
Roeser, T., & Baier, H.
Affiliations
University of California, San Francisco (US)
Venue
The Journal of Neuroscience
Published
2003-05-01
Volume
23
Issue
9
Pages
3726-3734
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2150958067
Cited by
222
References
67
Citations by year
2026: 12 · 2025: 10 · 2024: 8 · 2023: 3 · 2022: 14 · 2021: 7 · 2020: 9 · 2019: 7 · 2018: 7 · 2017: 12 · 2016: 7 · 2015: 11 · 2014: 10 · 2013: 17 · 2012: 11
FWCI
4.18
Type
journal article
Language
en
Open access
Licence
public-domain
Locations
  • Journal of Neuroscience (publishedVersion, public-domain)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Boehringer Ingelheim Fonds
  • National Institutes of Health
  • National Eye Institute (R01EY012406)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Zebrafish Biomedical Research Applications
  • Life Sciences › Neuroscience › Neurology › Vestibular and auditory disorders
Keywords
optic tectum, retinotectal projection, zebrafish larvae, optokinetic response, optomotor response, visuomotor behavior, laser ablation, retinal ganglion cells, saccades, visual acuity, second-order motion
MeSH terms
Animals, Behavior, Animal, Cues, Eye Movements, Larva, Luminescent Proteins, Motion Perception, Retinal Ganglion Cells, Saccades, Superior Colliculi, Visual Acuity, Visual Pathways, Zebrafish, Animals, Genetically Modified, Green Fluorescent Proteins, Laser Therapy

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