Larval Brain
Larval Brain - Related Videos
02:21
Dissection and Mounting of Fruit Fly Larval Brain Explants
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2025
This video demonstrates the dissection and mounting of brain explants from Drosophila larvae. The central nervous system (CNS), attached to eye disks, is extracted from the larvae and then mounted on a glass slide in a physiological saline solution.
08:29
Drosophila Larval IHC
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2023
Immunohistochemistry (IHC) is a technique used to visualize the presence and location of proteins within tissues. Drosophila larvae are particularly amenable to IHC because of the ease with which they can be processed for staining. Additionally, the larvae are transparent, meaning that some tissues can be visualized without the need for dissection. In IHC, proteins are ultimately detected with antibodies that specifically bind to “epitopes” within the protein of interest. In order to preserve...
10:43
Dissection of Larval Zebrafish Gonadal Tissue
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Cited by 6 •
2017
Here, we present a protocol for isolating gonadal tissue of larval zebrafish, which will facilitate investigations of zebrafish sex differentiation and maintenance.
07:18
Visualization of Larval Segmental Nerves in 3rd Instar Drosophila Larval Preparations
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Cited by 13 •
2010
Drosophila melanogaster larvae provide an ideal model system to investigate the mechanisms of axonal transport within larval segmental nerves. Using this procedure, 3rd instar larvae carrying various mutations can be compared to wild type larvae.
09:20
Isolation and RNA Extraction of Neurons, Macrophages and Microglia from Larval Zebrafish Brains
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Cited by 17 •
2018
We present a protocol to isolate neurons, macrophages and microglia from larval zebrafish brains under physiological and pathological conditions. Upon isolation, RNA is extracted from these cells to analyze their gene expression profile. This protocol allows for the collection of high-quality RNA for performing downstream analysis like qPCR and transcriptomics.
FAQs
Genetic programs guide neural cell differentiation and the formation of connections, while environmental inputs influence how those developing networks organize and function. Their interaction helps explain why circuits do not emerge from genes alone. In neuroscience research, examining both influences clarifies how sensory, motor, and behavioral capacities arise as the organism develops.
Electrical impulses carry activity through neurons, while chemical synapses transmit signals between connected cells. Together, these communication processes allow developing networks to coordinate sensory information, movement, and behavior. Studying their organization helps researchers connect cellular communication with the emergence of functional circuits rather than treating brain development as a purely structural process.
Circuit activity shows how developing neural connections operate, not merely where cells are located. Comparing activity with emerging sensory, motor, or behavioral functions can reveal how coordinated network operations develop. This perspective is important in neuroscience because functional organization may change as genetic programs, connectivity, and environmental experience interact.
A developing brain provides a time-sensitive view of how neurons differentiate, connect, and begin supporting behavior. Researchers can therefore relate changes in neural structure and activity to the appearance of functional abilities. This developmental perspective helps explain how organized networks emerge and provides context for investigating neurological disease through altered development or circuit function.
Their small size, transparency, and experimental accessibility can allow researchers to observe brain structure and neural activity in living animals. These features support direct study of development alongside behavior, rather than relying only on fixed or isolated material. As a result, larval preparations are useful for linking circuit formation with changing sensory and motor functions.
Larval brain research can address how sensory information is processed, how neural circuits control locomotion, and how brain activity relates to behavior. It also supports studies of neurodevelopment and neurological disease. These applications connect cellular and circuit-level observations with observable outcomes, helping neuroscience explain how nervous systems acquire functional organization.
Researchers can examine neural structure and activity in living larvae while considering behaviors required for survival, including sensory responses and locomotion. Relating observed circuit patterns to these functions helps identify how developing networks support behavior. This approach is especially valuable when investigating how functional circuits emerge before the nervous system reaches maturity.