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  Gray-matter structural variability in the human cerebellum: Lobule-specific differences across sex and hemisphere

Steele, C., & Chakravarty, M. M. (2018). Gray-matter structural variability in the human cerebellum: Lobule-specific differences across sex and hemisphere. NeuroImage, 170, 164-173. doi:10.1016/j.neuroimage.2017.04.066.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0001-F72B-9 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0003-BD09-F
資料種別: 学術論文

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作成者

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 作成者:
Steele, Christopher1, 2, 著者           
Chakravarty, M. Mallar1, 3, 著者
所属:
1Cerebral Imaging Center, Douglas Mental Health University Institute, McGill University, Montréal, QC, Canada, ou_persistent22              
2Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
3Department of Biomedical Engineering, Douglas Mental Health University Institute, McGill University, Montréal, QC, Canada, ou_persistent22              

内容説明

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キーワード: Cerebellar normative variation; Gray-matter volume; Hemisphere differences; Human cerebellum; Relationship with behavior; Sex differences
 要旨: Though commonly thought of as a "motor structure", we now know that the cerebellum's reciprocal connections to the cerebral cortex underlie contributions to both motor and non-motor behavior. Further, recent research has shown that cerebellar dysfunction may contribute to a wide range of neuropsychiatric disorders. However, there has been little characterization of normative variability at the level of cerebellar structure that can facilitate and further our understanding of disease biomarkers. In this manuscript we examine normative variation of the cerebellum using data from the Human Connectome Project (HCP). The Multiple Automatically Generated Templates (MAGeT) segmentation tool was used to identify the cerebella and 33 anatomically-defined lobules from 327 individuals from the HCP. To characterize normative variation, we estimated population mean volume and variability, assessed differences in hemisphere and sex, and related lobular volume to motor and non-motor behavior. We found that the effects of hemisphere and sex were not homogeneous across all lobules of the cerebellum. Greater volume in the right hemisphere was primarily driven by lobules Crus I, II, and H VIIB, with H VIIIA exhibiting the greatest left>right asymmetry. Relative to total cerebellar gray-matter volume, females had larger Crus II (known to be connected with non-motor regions of the cerebral cortex) while males had larger motor-connected lobules including H V, and VIIIA/B. When relating lobular volume to memory, motor performance, and emotional behavior, we found some evidence for relationships that have previously been identified in the literature. Our observations of normative cerebellar structure and variability in young adults provide evidence for lobule-specific differences in volume and the relationship with sex and behavior - indicating that the cerebellum cannot be considered a single structure with uniform function, but as a set of regions with functions that are likely as diverse as their connectivity with the cerebral cortex.

資料詳細

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言語: eng - English
 日付: 2017-04-262017-02-212017-04-272017-04-282018-04-15
 出版の状態: 出版
 ページ: -
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 目次: -
 査読: 査読あり
 識別子（DOI, ISBNなど）: DOI: 10.1016/j.neuroimage.2017.04.066
PMID: 28461060
その他: Epub 2017
 学位: -

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Project information

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Grant ID : 1U54MH091657
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Funding organization : National Institutes of Health (NIH)
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Funding organization : McDonnell Center for Systems Neuroscience at Washington University
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Funding program : Ontario Research Fund – Research Excellence
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Funding organization : University of Toronto
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Funding organization : Natural Sciences and Engineering Research Council of Canada (NSERC)
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Funding organization : Canadian Institutes of Health Research (CIHR)
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Funding organization : Weston Brain Institute
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Funding organization : Michael J. Fox Foundation
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Funding organization : Alzheimer's Society
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Funding organization : Brain Canada

出版物 1

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出版物名: NeuroImage
種別: 学術雑誌
 著者・編者:
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出版社, 出版地: Orlando, FL : Academic Press
ページ: - 巻号: 170 通巻号: - 開始・終了ページ: 164 - 173 識別子（ISBN, ISSN, DOIなど）: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166