MICrONs Tutorials

Welcome to the MICrONs-Explorer data tutorial ecosystem.

The MICrONS open-access dataset is a functional connectome containing 200,000 cells, 75,000 neurons with physiology, and 523 million synapses.

This resource provides tools and tutorials for how to access the anatomical and functional data that span all 6 layers of mouse primary visual cortex and 3 higher visual areas (LM, AL, RL) within a cubic millimeter volume.

Highlights

Dataset overview

  • Introduction: motivation of and introduction to the MICrONS dataset
  • Background: Overview of dataset collection, methods, and outputs

Data curation and improvements

Data analysis tools

  • Neuroglancer: for interactive visualization, exploration, and annotation
  • Table Viewer: a Dash App, browser-based tool, for querying the CAVEclient annotation tables
  • Connectivity Viewer: a Dash App, browser-based tool, for querying and visualizing synaptic connectivity
  • Python Tools: introduction and quickstart to the Connectome Annotation Versioning Engine (CAVE) and associated python packages

Data Release information:

MICrONS dataset overivew. Figure from Nature, 2025 (DOI https://doi.org/10.1038/d41586-025-00908-4)
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