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"Pontocerebellar" Keyword-tagged Publications:

Title Authors PubMed ID
1 Mapping pontocerebellar connectivity with diffusion MRI Rousseau PN; Chakravarty MM; Steele CJ; 36252913
PERFORM

 

Title:Mapping pontocerebellar connectivity with diffusion MRI
Authors:Rousseau PNChakravarty MMSteele CJ
Link:https://pubmed.ncbi.nlm.nih.gov/36252913/
DOI:10.1016/j.neuroimage.2022.119684
Publication:NeuroImage
Keywords:CerebellumConnectivityDiffusion MRIPonsPontocerebellar
PMID:36252913 Category: Date Added:2022-10-27
Dept Affiliation: PERFORM
1 Department of Psychology, Concordia University, Montreal, QC, Canada. Electronic address: paul.rousseau@mail.mcgill.ca.
2 Cerebral Imaging Center, Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada; Department of Psychiatry, McGill University, Montreal, QC, Canada; Biological and Biomedical Engineering, McGill University, Montreal, QC, Canada.
3 Department of Psychology, Concordia University, Montreal, QC, Canada; Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; PERFORM Centre, Concordia University, Montreal, QC, Canada.

Description:

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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