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Reconstruction of neocortex: Organelles, compartments, cells, circuits, and activity
Ist Teil von
Cell, 2022-03, Vol.185 (6), p.1082-1100.e24
Ort / Verlag
United States: Elsevier Inc
Erscheinungsjahr
2022
Quelle
Free E-Journal (出版社公開部分のみ)
Beschreibungen/Notizen
We assembled a semi-automated reconstruction of L2/3 mouse primary visual cortex from ∼250 × 140 × 90 μm3 of electron microscopic images, including pyramidal and non-pyramidal neurons, astrocytes, microglia, oligodendrocytes and precursors, pericytes, vasculature, nuclei, mitochondria, and synapses. Visual responses of a subset of pyramidal cells are included. The data are publicly available, along with tools for programmatic and three-dimensional interactive access. Brief vignettes illustrate the breadth of potential applications relating structure to function in cortical circuits and neuronal cell biology. Mitochondria and synapse organization are characterized as a function of path length from the soma. Pyramidal connectivity motif frequencies are predicted accurately using a configuration model of random graphs. Pyramidal cells receiving more connections from nearby cells exhibit stronger and more reliable visual responses. Sample code shows data access and analysis.
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•A cortical reconstruction describes neuron connectivity, function, and cell biology•Pyramidal areal synapse density appears invariant with distance from the soma•Analysis of connectivity motifs reexamines "non-randomness" in cortical networks•Pyramidal cells with more local connections give stronger and more reliable responses
Reconstruction of mouse visual cortex provides capacity for quantitative characterization of organelles, compartments, cells, circuits, and activity and their interrelations.