Task-specific modulation of corticospinal neuron activity during motor learning in mice

Abstract Motor skill learning relies on the plasticity of the primary motor cortex as task acquisition drives cortical motor network remodeling. Large-scale cortical remodeling of evoked motor outputs occurs during the learning of corticospinal-dependent prehension behavior, but not simple, non-dext...

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Main Authors: Najet Serradj, Francesca Marino, Yunuen Moreno-López, Amanda Bernstein, Sydney Agger, Marwa Soliman, Andrew Sloan, Edmund Hollis
Format: Article
Language:English
Published: Nature Portfolio 2023-05-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-38418-4
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author Najet Serradj
Francesca Marino
Yunuen Moreno-López
Amanda Bernstein
Sydney Agger
Marwa Soliman
Andrew Sloan
Edmund Hollis
author_facet Najet Serradj
Francesca Marino
Yunuen Moreno-López
Amanda Bernstein
Sydney Agger
Marwa Soliman
Andrew Sloan
Edmund Hollis
author_sort Najet Serradj
collection DOAJ
description Abstract Motor skill learning relies on the plasticity of the primary motor cortex as task acquisition drives cortical motor network remodeling. Large-scale cortical remodeling of evoked motor outputs occurs during the learning of corticospinal-dependent prehension behavior, but not simple, non-dexterous tasks. Here we determine the response of corticospinal neurons to two distinct motor training paradigms and assess the role of corticospinal neurons in the execution of a task requiring precise modulation of forelimb movement and one that does not. In vivo calcium imaging in mice revealed temporal coding of corticospinal activity coincident with the development of precise prehension movements, but not more simplistic movement patterns. Transection of the corticospinal tract and optogenetic regulation of corticospinal activity show the necessity for patterned corticospinal network activity in the execution of precise movements but not simplistic ones. Our findings reveal a critical role for corticospinal network modulation in the learning and execution of precise motor movements.
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spelling doaj.art-affdf4de431a47afb34bf971fc83cef32023-06-11T11:20:06ZengNature PortfolioNature Communications2041-17232023-05-0114111210.1038/s41467-023-38418-4Task-specific modulation of corticospinal neuron activity during motor learning in miceNajet Serradj0Francesca Marino1Yunuen Moreno-López2Amanda Bernstein3Sydney Agger4Marwa Soliman5Andrew Sloan6Edmund Hollis7Burke Neurological InstituteUniversity of CaliforniaBurke Neurological InstituteBurke Neurological InstituteHAVAS Production StudiosBurke Neurological InstituteVulintus, Inc.Burke Neurological InstituteAbstract Motor skill learning relies on the plasticity of the primary motor cortex as task acquisition drives cortical motor network remodeling. Large-scale cortical remodeling of evoked motor outputs occurs during the learning of corticospinal-dependent prehension behavior, but not simple, non-dexterous tasks. Here we determine the response of corticospinal neurons to two distinct motor training paradigms and assess the role of corticospinal neurons in the execution of a task requiring precise modulation of forelimb movement and one that does not. In vivo calcium imaging in mice revealed temporal coding of corticospinal activity coincident with the development of precise prehension movements, but not more simplistic movement patterns. Transection of the corticospinal tract and optogenetic regulation of corticospinal activity show the necessity for patterned corticospinal network activity in the execution of precise movements but not simplistic ones. Our findings reveal a critical role for corticospinal network modulation in the learning and execution of precise motor movements.https://doi.org/10.1038/s41467-023-38418-4
spellingShingle Najet Serradj
Francesca Marino
Yunuen Moreno-López
Amanda Bernstein
Sydney Agger
Marwa Soliman
Andrew Sloan
Edmund Hollis
Task-specific modulation of corticospinal neuron activity during motor learning in mice
Nature Communications
title Task-specific modulation of corticospinal neuron activity during motor learning in mice
title_full Task-specific modulation of corticospinal neuron activity during motor learning in mice
title_fullStr Task-specific modulation of corticospinal neuron activity during motor learning in mice
title_full_unstemmed Task-specific modulation of corticospinal neuron activity during motor learning in mice
title_short Task-specific modulation of corticospinal neuron activity during motor learning in mice
title_sort task specific modulation of corticospinal neuron activity during motor learning in mice
url https://doi.org/10.1038/s41467-023-38418-4
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