EM derived morphology of 50k neurons from mouse visual cortex: Synapse and morphology data of a neuron in a P87 male mouse

3D anatomical reconstruction and synapse map of neuron in mouse visual cortex obtained from serial section Electron Microscopy imaging from the IARPA MICrONS dataset. More information on the can be found on MICrONS Explorer https://www.microns- explorer.org/cortical-mm3. Most of the included h5, json and swc files represent dendrite and soma morphologies of excitatory neurons that have been automatically reconstructed with little to no human proofreading. These span much of the millimeter cubed of the MICrONS dataset except for the edges where the majority of the morphology would be cut off. There is a smaller subset of human proofread excitatory and inhibitory neurons with axons, dendrite and soma reconstruction. This information is accessible in the json files. h5 files here can be ingested into a meshwork object in python with the package MeshParty https://github.com/sdorkenw/MeshParty. This meshwork integrates anatomical data and other user defined annotations such as synapses. The meshworks here contain annotation tables including pre and post synaptic chemical synapses on the given neuron and the ids of the post or presynaptic neurons respectively. Unless the neuron has had a high level of proofreading, the axon has been masked and removed. json files contain metadata and morphological features of the neuron skeleton including the proofreading version of the MICrONS dataset, the various ids of the given body, and lenghts of certain compartments. More information on the contents of this filetype can be found on the MicRONS explorer skeleton page.