Cited by 47Zebrafish Biomedical Research ApplicationsMotor Control and AdaptationNeurobiology and Insect Physiology Research

Control of a specific motor program by a small brain area in zebrafish

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Fajardo, Otto, Zhu, Peixin, Friedrich, Rainer W.·2013·Frontiers in Neural Circuits

Abstract

Complex motor behaviors are thought to be coordinated by networks of brain nuclei that may control different elementary motor programs. Transparent zebrafish larvae offer the opportunity to analyze the functional organization of motor control networks by optical manipulations of neuronal activity during behavior. We examined motor behavior in transgenic larvae expressing channelrhodopsin-2 throughout many neurons in the brain. Wide-field optical stimulation triggered backward and rotating movements caused by the repeated execution of J-turns, a specific motor program that normally occurs during prey capture. Although optically-evoked activity was widespread, behavioral responses were highly coordinated and lateralized. 3-D mapping of behavioral responses to local optical stimuli revealed that J-turns can be triggered specifically in the anterior-ventral optic tectum (avOT) and/or the adjacent pretectum. These results suggest that the execution of J-turns is controlled by a small group of neurons in the midbrain that may act as a command center. The identification of a brain area controlling a defined motor program involved in prey capture is a step toward a comprehensive analysis of neuronal circuits mediating sensorimotor behaviors of zebrafish.

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Crossref · 10.3389/fncir.2013.00067

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  • The optic tectum of teleosts receives sensory information mainly from multiple sensory modalities to form real-time representations of the animal surrounding, to identify significant stimuli, like preys or predators, and to trigger sensory guided responses.

    “The optic tectum of teleosts receives sensory information mainly from multiple sensory modalities to form real-time representations of the animal surrounding, to identify significant stimuli, like preys, or potentially dangerous objects, as predators, and to trigger sensory guided responses.”

    From Spatial Cognition in Teleost Fish: Strategies and Mechanisms (2021) · cites this paper as [129]

    The Introduction (page unavailable) describes visual input to the zebrafish optic tectum and its role in prey capture; the Discussion reports that stimulating a tectal subregion can trigger prey-orienting turns. The paper does not establish that the teleost tectum integrates multiple sensory modalities or forms real-time representations of its surroundings. Its predator example concerns toads and assigns predator-signaling visual stimuli to the pretectum, not the optic tectum. (LLM, conf=0.88)

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Authors
Fajardo, O., Zhu, P., & Friedrich, R. W.
Affiliations
Friedrich Miescher Institute (CH)
Corresponding author
Fajardo, Otto
Venue
Frontiers in Neural Circuits
Published
2013
Volume
7
Pages
67-67
ISSN
1662-5110 (ISSN-L)
OpenAlex
W2117425657
Cited by
47
References
66
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2023: 5 · 2022: 2 · 2021: 2 · 2020: 5 · 2019: 5 · 2018: 7 · 2017: 1 · 2016: 4 · 2015: 4 · 2014: 4 · 2013: 3
FWCI
2.90
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Neural Circuits (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • European Commission
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Zebrafish Biomedical Research Applications
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
Keywords
motor programs, prey capture, zebrafish larvae, optic tectum, pretectum, channelrhodopsin-2, optogenetic stimulation, laterality, sensorimotor behavior
MeSH terms
Animals, Mesencephalon, Motor Activity, Neural Pathways, Photic Stimulation, Psychomotor Performance, Superior Colliculi, Zebrafish, Animals, Genetically Modified

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