A Specific Population of Reticulospinal Neurons Controls the Termination of Locomotion
Locomotion requires the proper sequencing of neural activity to start, maintain, and stop it. Recently, brainstem neurons were shown to specifically stop locomotion in mammals. However, the cellular properties of these neurons and their activity during locomotion are still unknown. Here, we took adv...
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doaj-6554a0f4412546b7b3f1311a9b87e49b2020-11-25T01:13:34ZengElsevierCell Reports2211-12472016-06-0115112377238610.1016/j.celrep.2016.05.029A Specific Population of Reticulospinal Neurons Controls the Termination of LocomotionLaurent Juvin0Swantje Grätsch1Emilie Trillaud-Doppia2Jean-François Gariépy3Ansgar Büschges4Réjean Dubuc5Department of Neuroscience, Université de Montréal, Montréal, QC H3C 3J7, CanadaDepartment of Neuroscience, Université de Montréal, Montréal, QC H3C 3J7, CanadaDepartment of Neuroscience, Université de Montréal, Montréal, QC H3C 3J7, CanadaDepartment of Neuroscience, Université de Montréal, Montréal, QC H3C 3J7, CanadaDepartment of Animal Physiology, Biocenter Cologne, University of Cologne, 50674 Cologne, GermanyDepartment of Neuroscience, Université de Montréal, Montréal, QC H3C 3J7, CanadaLocomotion requires the proper sequencing of neural activity to start, maintain, and stop it. Recently, brainstem neurons were shown to specifically stop locomotion in mammals. However, the cellular properties of these neurons and their activity during locomotion are still unknown. Here, we took advantage of the lamprey model to characterize the activity of a cell population that we now show to be involved in stopping locomotion. We find that these neurons display a burst of spikes that coincides with the end of swimming activity. Their pharmacological activation ends ongoing swimming, whereas the inactivation of these neurons dramatically impairs the rapid termination of swimming. These neurons are henceforth referred to as stop cells, because they play a crucial role in the termination of locomotion. Our findings contribute to the fundamental understanding of motor control and provide important details about the cellular mechanisms involved in locomotor termination.http://www.sciencedirect.com/science/article/pii/S221112471630612X |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Laurent Juvin Swantje Grätsch Emilie Trillaud-Doppia Jean-François Gariépy Ansgar Büschges Réjean Dubuc |
spellingShingle |
Laurent Juvin Swantje Grätsch Emilie Trillaud-Doppia Jean-François Gariépy Ansgar Büschges Réjean Dubuc A Specific Population of Reticulospinal Neurons Controls the Termination of Locomotion Cell Reports |
author_facet |
Laurent Juvin Swantje Grätsch Emilie Trillaud-Doppia Jean-François Gariépy Ansgar Büschges Réjean Dubuc |
author_sort |
Laurent Juvin |
title |
A Specific Population of Reticulospinal Neurons Controls the Termination of Locomotion |
title_short |
A Specific Population of Reticulospinal Neurons Controls the Termination of Locomotion |
title_full |
A Specific Population of Reticulospinal Neurons Controls the Termination of Locomotion |
title_fullStr |
A Specific Population of Reticulospinal Neurons Controls the Termination of Locomotion |
title_full_unstemmed |
A Specific Population of Reticulospinal Neurons Controls the Termination of Locomotion |
title_sort |
specific population of reticulospinal neurons controls the termination of locomotion |
publisher |
Elsevier |
series |
Cell Reports |
issn |
2211-1247 |
publishDate |
2016-06-01 |
description |
Locomotion requires the proper sequencing of neural activity to start, maintain, and stop it. Recently, brainstem neurons were shown to specifically stop locomotion in mammals. However, the cellular properties of these neurons and their activity during locomotion are still unknown. Here, we took advantage of the lamprey model to characterize the activity of a cell population that we now show to be involved in stopping locomotion. We find that these neurons display a burst of spikes that coincides with the end of swimming activity. Their pharmacological activation ends ongoing swimming, whereas the inactivation of these neurons dramatically impairs the rapid termination of swimming. These neurons are henceforth referred to as stop cells, because they play a crucial role in the termination of locomotion. Our findings contribute to the fundamental understanding of motor control and provide important details about the cellular mechanisms involved in locomotor termination. |
url |
http://www.sciencedirect.com/science/article/pii/S221112471630612X |
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