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Associations Between , and Cell Classes in Mouse Primary Visual Cortex

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Journal bioRxiv
Date 2023 May 3
PMID 37131710
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Abstract

The brain consists of many cell classes yet electrophysiology recordings are typically unable to identify and monitor their activity in the behaving animal. Here, we employed a systematic approach to link cellular, multi-modal properties from experiments with recorded units via computational modeling and optotagging experiments. We found two one-channel and six multi-channel clusters in mouse visual cortex with distinct properties in terms of activity, cortical depth, and behavior. We used biophysical models to map the two one- and the six multi-channel clusters to specific classes with unique morphology, excitability and conductance properties that explain their distinct extracellular signatures and functional characteristics. These concepts were tested in ground-truth optotagging experiments with two inhibitory classes unveiling distinct properties. This multi-modal approach presents a powerful way to separate clusters and infer their cellular properties from first principles.

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