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Related Experiment Videos

A Student's Guide to Neural Circuit Tracing.

Christine Saleeba1,2, Bowen Dempsey3, Sheng Le1

  • 1Neurobiology of Vital Systems Node, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, Australia.

Frontiers in Neuroscience
|September 12, 2019
PubMed
Summary

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This review simplifies mesoscopic connectomics for new researchers, detailing advanced neural tract tracing techniques for mapping brain connectivity. It covers data collection, analysis, and future neuroanatomy technologies.

Area of Science:

  • Neuroscience
  • Neuroanatomy
  • Systems Neuroscience

Background:

  • The mammalian nervous system's complexity necessitates mapping its intricate synaptic connections.
  • Connectomics aims to map brain structure at ultrastructural, mesoscopic, and macroscopic levels.
  • Recent advances integrate molecular biology, virology, microscopy, computer science, and genetics.

Purpose of the Study:

  • To provide a novice-friendly overview of mesoscopic connectomic approaches.
  • To assess current techniques for mapping neural circuits.
  • To discuss challenges and future directions in neuroanatomy.

Main Methods:

  • Review of conventional and viral neural tracers.
  • Examination of methods for selecting neuronal subpopulations.
Keywords:
anterograde tracerconnectome analysisneuroanatomyretrograde tracerssynaptic contactsviral tracers

Related Experiment Videos

  • Analysis of data collection and processing in connectomics.

    • Main Results:

    • Significant methodological advancements have expanded the connectomics toolbox.
    • New reagents allow targeted identification of neuronal efferent and afferent connections.
    • Existing approaches present challenges in data analysis and dissemination.

    Conclusions:

    • Mesoscopic connectomics offers crucial insights into circuit-level brain architecture.
    • Understanding these techniques is vital for navigating the complex field of neuroanatomy.
    • Rapidly evolving technologies promise future advancements in mapping neural pathways.