Fast-Spiking Interneurons of the Premotor Cortex Contribute to Initiation and Execution of Spontaneous Actions.
electrophysiology
fast spiking neurons
licking
premotor cortex
pyramidal neurons
single unit activity
Journal
The Journal of neuroscience : the official journal of the Society for Neuroscience
ISSN: 1529-2401
Titre abrégé: J Neurosci
Pays: United States
ID NLM: 8102140
Informations de publication
Date de publication:
07 06 2023
07 06 2023
Historique:
received:
11
04
2022
revised:
24
03
2023
accepted:
28
03
2023
medline:
9
6
2023
pubmed:
18
5
2023
entrez:
17
5
2023
Statut:
ppublish
Résumé
Planning and execution of voluntary movement depend on the contribution of distinct classes of neurons in primary motor and premotor areas. However, timing and pattern of activation of GABAergic cells during specific motor behaviors remain only partly understood. Here, we directly compared the response properties of putative pyramidal neurons (PNs) and GABAergic fast-spiking neurons (FSNs) during spontaneous licking and forelimb movements in male mice. Recordings centered on the face/mouth motor field of the anterolateral motor cortex (ALM) revealed that FSNs fire longer than PNs and earlier for licking, but not for forelimb movements. Computational analysis revealed that FSNs carry vastly more information than PNs about the onset of movement. While PNs differently modulate their discharge during distinct motor acts, most FSNs respond with a stereotyped increase in firing rate. Accordingly, the informational redundancy was greater among FSNs than PNs. Finally, optogenetic silencing of a subset of FSNs reduced spontaneous licking movement. These data suggest that a global rise of inhibition contributes to the initiation and execution of spontaneous motor actions.
Identifiants
pubmed: 37197980
pii: JNEUROSCI.0750-22.2023
doi: 10.1523/JNEUROSCI.0750-22.2023
pmc: PMC10255067
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
4234-4250Informations de copyright
Copyright © 2023 Giordano, Alia et al.
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