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  Mapping pontocerebellar connectivity with diffusion MRI

Rousseau, P.-N., Chakravarty, M. M., & Steele, C. (2022). Mapping pontocerebellar connectivity with diffusion MRI. NeuroImage, 264: 119684. doi:10.1016/j.neuroimage.2022.119684.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000B-48DF-A Version Permalink: https://hdl.handle.net/21.11116/0000-000D-12DC-7
Genre: Journal Article

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 Creators:
Rousseau, Paul-Noel1, Author
Chakravarty, M. Mallar2, Author
Steele, Christopher1, 3, Author                 
Affiliations:
1Department of Psychology, Concordia University, Montréal, QC, Canada, ou_persistent22              
2Cerebral Imaging Centre, Douglas Mental Health University Institute, McGill University, Montréal, QC, Canada, ou_persistent22              
3Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              

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Free keywords: Cerebellum; Connectivity; Diffusion MRI; Pons; Pontocerebellar
 Abstract: The cerebellum's involvement in cognitive, affective and motor functions is mediated by connections to different regions of the cerebral cortex. A distinctive feature of cortico-cerebellar loops that has been demonstrated in the animal work is a topographic organization that is preserved across its corticopontine, pontocerebellar, and cerebello-thalmo-cortical segments. Here we used tractography derived from diffusion imaging data to characterize the connections between the pons and the individual lobules of the cerebellum and generate a parcellation of the pons and middle cerebellar peduncle based on the pattern of connectivity. We identified a rostral to caudal gradient in the pons, similar to that observed in the animal work, such that rostral regions were preferentially connected to cerebellar lobules involved in non-motor, and caudal regions with motor regions. These findings advance our fundamental understanding of the cerebellum, and the parcellations we generated provide context for future research into the pontocerebellar tract's involvement in health and disease.

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Language(s): eng - English
 Dates: 2022-10-112022-10-132022-10-142022-12-01
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.neuroimage.2022.119684
Other: epub 2022
PMID: 36252913
 Degree: -

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Project name : -
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Funding organization : Quebec Bioimaging Network and Fonds de Recherche du Québec
Project name : -
Grant ID : RGPIN-2020-06812; DGECR-2020-00146
Funding program : -
Funding organization : Natural Sciences and Engineering Research Council (NSERC)
Project name : -
Grant ID : -
Funding program : New Investigator Award
Funding organization : Heart and Stroke Foundation of Canada
Project name : -
Grant ID : HNC 170723
Funding program : -
Funding organization : Canadian Institutes of Health Research (CIHR)
Project name : -
Grant ID : -
Funding program : Healthy Brains, Healthy Lives
Funding organization : McGill University
Project name : Human Connectome Project
Grant ID : 1U54MH091657
Funding program : -
Funding organization : National Institutes of Health (NIH)
Project name : -
Grant ID : -
Funding program : -
Funding organization : McDonnell Center for Systems Neuroscience at Washington University

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Title: NeuroImage
Source Genre: Journal
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Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 264 Sequence Number: 119684 Start / End Page: - Identifier: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166