Analysis of human hippocampal volumetry in relation to pattern separation ability in healthy young subjects

• Material Type: 博士論文
• ISSN: 2162-3279
• Title: Analysis of human hippocampal volumetry in relation to pattern separation ability in healthy young subjects
• Volume: 10 12
• Author/Editor: 宇杉, 竜一
• Author Heading: 宇杉, 竜一
• Publication, Distribution, etc.: 琉球大学
• Publication Date: 2021-09-30
• Publication Date (W3CDTF): 2021-09-30
• Alternative Title: 健常若年者におけるパターン分離能力に関連したヒト海馬体積測定による分析
• Periodical title: Brain and Behavior
• Degree grantor/type: 琉球大学
• Date Granted: 2021-09-30
• Date Granted (W3CDTF): 2021-09-30
• Dissertation Number: 甲第533号
• Degree Type: 博士(医学)
• Conferring No. (Dissertation): 甲第533号
• Text Language Code: eng
• Alias of Author: Usugi, Ryoichi
• Subject Heading: dentate gyrus; hippocampal subfields; hippocampal-amygdaloid transition area HATA; pattern separation; volumetric MR
• Target Audience: 一般
• Note (General): Introduction: Hippocampal dentate gyrus related to pattern separation has attracted attention as an area for neurogenesis. However, the associations between the pattern separation and the volumes of hippocampal subfields in humans remain unknown.Methods: 58 young adults were examined the memory task (pattern separation, pattern completion) and the hippocampal volumes. Subjects were asked to determine whether the visual image is a new stimulus, or a similar but different stimulus (pattern separation), or the same stimulus (pattern completion), compared to preceding stimuli, and response time and correct response were measured. The volumes of the whole brain, hippocampus 6 subfields and perihippocampus 5 subfields, were measured using FreeSurfer 6.0.Results: Negative associations between the pattern separation task and the volumes of whole brain areas were found in bilateral cerebellar cortex, fourth ventricle, left hippocampus, left thalamus, left ventral diencephalon, and brainstem. Simple linear regression analysis revealed a significant association with the left hippocampalamygdaloid transition area only, while no significant associations were found in any of the subfield volumes when adjusted with covariates.Conclusions: The principle “bigger is better”―an idea that the larger the volume the better the function―could not be applied to the relation between the pattern separation ability and the dentate gyrus.
• Persistent ID (NDL): info:ndljp/pid/12314036; https://dl.ndl.go.jp/pid/12314036
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2022-08-08T06:02:54+09:00
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): http://hdl.handle.net/20.500.12000/0002018026; https://u-ryukyu.repo.nii.ac.jp/records/2018026
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

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