Cargando…

Propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information

Propagating spatiotemporal neural patterns are widely evident across sensory, motor, and association cortical areas. However, it remains unclear whether any characteristics of neural propagation carry information about specific behavioral details. Here, we provide the first evidence for a link betwe...

Descripción completa

Detalles Bibliográficos
Autores principales: Liang, Wei, Balasubramanian, Karthikeyan, Papadourakis, Vasileios, Hatsopoulos, Nicholas G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Academy of Sciences 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9942811/
https://www.ncbi.nlm.nih.gov/pubmed/36652475
http://dx.doi.org/10.1073/pnas.2212227120
_version_ 1784891578334052352
author Liang, Wei
Balasubramanian, Karthikeyan
Papadourakis, Vasileios
Hatsopoulos, Nicholas G.
author_facet Liang, Wei
Balasubramanian, Karthikeyan
Papadourakis, Vasileios
Hatsopoulos, Nicholas G.
author_sort Liang, Wei
collection PubMed
description Propagating spatiotemporal neural patterns are widely evident across sensory, motor, and association cortical areas. However, it remains unclear whether any characteristics of neural propagation carry information about specific behavioral details. Here, we provide the first evidence for a link between the direction of cortical propagation and specific behavioral features of an upcoming movement on a trial-by-trial basis. We recorded local field potentials (LFPs) from multielectrode arrays implanted in the primary motor cortex of two rhesus macaque monkeys while they performed a 2D reach task. Propagating patterns were extracted from the information-rich high-gamma band (200 to 400 Hz) envelopes in the LFP amplitude. We found that the exact direction of propagating patterns varied systematically according to initial movement direction, enabling kinematic predictions. Furthermore, characteristics of these propagation patterns provided additional predictive capability beyond the LFP amplitude themselves, which suggests the value of including mesoscopic spatiotemporal characteristics in refining brain–machine interfaces.
format Online
Article
Text
id pubmed-9942811
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher National Academy of Sciences
record_format MEDLINE/PubMed
spelling pubmed-99428112023-02-22 Propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information Liang, Wei Balasubramanian, Karthikeyan Papadourakis, Vasileios Hatsopoulos, Nicholas G. Proc Natl Acad Sci U S A Biological Sciences Propagating spatiotemporal neural patterns are widely evident across sensory, motor, and association cortical areas. However, it remains unclear whether any characteristics of neural propagation carry information about specific behavioral details. Here, we provide the first evidence for a link between the direction of cortical propagation and specific behavioral features of an upcoming movement on a trial-by-trial basis. We recorded local field potentials (LFPs) from multielectrode arrays implanted in the primary motor cortex of two rhesus macaque monkeys while they performed a 2D reach task. Propagating patterns were extracted from the information-rich high-gamma band (200 to 400 Hz) envelopes in the LFP amplitude. We found that the exact direction of propagating patterns varied systematically according to initial movement direction, enabling kinematic predictions. Furthermore, characteristics of these propagation patterns provided additional predictive capability beyond the LFP amplitude themselves, which suggests the value of including mesoscopic spatiotemporal characteristics in refining brain–machine interfaces. National Academy of Sciences 2023-01-18 2023-01-24 /pmc/articles/PMC9942811/ /pubmed/36652475 http://dx.doi.org/10.1073/pnas.2212227120 Text en Copyright © 2023 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) .
spellingShingle Biological Sciences
Liang, Wei
Balasubramanian, Karthikeyan
Papadourakis, Vasileios
Hatsopoulos, Nicholas G.
Propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information
title Propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information
title_full Propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information
title_fullStr Propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information
title_full_unstemmed Propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information
title_short Propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information
title_sort propagating spatiotemporal activity patterns across macaque motor cortex carry kinematic information
topic Biological Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9942811/
https://www.ncbi.nlm.nih.gov/pubmed/36652475
http://dx.doi.org/10.1073/pnas.2212227120
work_keys_str_mv AT liangwei propagatingspatiotemporalactivitypatternsacrossmacaquemotorcortexcarrykinematicinformation
AT balasubramaniankarthikeyan propagatingspatiotemporalactivitypatternsacrossmacaquemotorcortexcarrykinematicinformation
AT papadourakisvasileios propagatingspatiotemporalactivitypatternsacrossmacaquemotorcortexcarrykinematicinformation
AT hatsopoulosnicholasg propagatingspatiotemporalactivitypatternsacrossmacaquemotorcortexcarrykinematicinformation