title: Analyzing the structure and function of neuronal circuits in zebrafish.
abstract: The clever choice of animal models has been instrumental for many breakthrough discoveries in life sciences. One of the outstanding challenges in neuroscience is the in-depth analysis of neuronal circuits to understand how interactions between large numbers of neurons give rise to the computational power of the brain. A promising model organism to address this challenge is the zebrafish, not only because it is cheap, transparent and accessible to sophisticated genetic manipulations but also because it offers unique advantages for quantitative analyses of circuit structure and function. One of the most important advantages of zebrafish is its small brain size, both at larval and adult stages. Small brains enable exhaustive measurements of neuronal activity patterns by optical imaging and facilitate large-scale reconstructions of wiring diagrams by electron microscopic approaches. Such information is important, and probably essential, to obtain mechanistic insights into neuronal computations underlying higher brain functions and dysfunctions. This review provides a brief overview over current methods and motivations for dense reconstructions of neuronal activity and connectivity patterns. It then discusses selective advantages of zebrafish and provides examples how these advantages are exploited to study neuronal computations in the olfactory bulb.
authors: Friedrich Miescher Institute for Biomedical Research Basel, Switzerland.
authors: Rainer W
authors: RW
authors: Friedrich
authors: Christel
authors: C
authors: Genoud
authors: Adrian A
authors: AA
authors: Wanner
mesh_terms: D000818:Animals; D001921:Brain / Q000166:cytology / Q000502:physiology*; D006801:Humans; D023421:Models, Animal; D009415:Nerve Net / Q000166:cytology / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D009830:Olfactory Bulb / Q000166:cytology / Q000502:physiology; D015027:Zebrafish
keywords: activity pattern; neuronal circuit; olfactory system; reconstruction; zebrafish
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