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Surface morphology of amygdala is associated with trait anxiety.

Previous neuroimaging studies have suggested a role of amygdala in trait anxiety level, in which amygdala was typically treated as a whole. To date, it remains unknown whether the morphology of specific subregions of amygdala are associated with trait anxiety. Here, we employed a shape analysis appr... Full description

Journal Title: PloS one 2012, Vol.7(10), p.e47817
Main Author: Li, Shuyu
Other Authors: Wang, Yanan , Xu, Pengfei , Pu, Fang , Li, Deyu , Fan, Yubo , Gong, Gaolang , Luo, Yuejia
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0047817
Link: http://search.proquest.com/docview/1125255465/?pq-origsite=primo
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title: Surface morphology of amygdala is associated with trait anxiety.
format: Article
creator:
  • Li, Shuyu
  • Wang, Yanan
  • Xu, Pengfei
  • Pu, Fang
  • Li, Deyu
  • Fan, Yubo
  • Gong, Gaolang
  • Luo, Yuejia
subjects:
  • Adolescent–Pathology
  • Adult–Pathology
  • Amygdala–Pathology
  • Anxiety–Pathology
  • Anxiety Disorders–Pathology
  • Female–Pathology
  • Humans–Pathology
  • Imaging, Three-Dimensional–Pathology
  • Magnetic Resonance Imaging–Pathology
  • Male–Pathology
  • Young Adult–Pathology
ispartof: PloS one, 2012, Vol.7(10), p.e47817
description: Previous neuroimaging studies have suggested a role of amygdala in trait anxiety level, in which amygdala was typically treated as a whole. To date, it remains unknown whether the morphology of specific subregions of amygdala are associated with trait anxiety. Here, we employed a shape analysis approach to locate the association between its morphology and trait anxiety on the surface of amygdala. 24 healthy young participants were included. The boundary of amygdala for each subject was first manually outlined using high-resolution magnetic resonance (MR) image, followed by 3D surface reconstruction and parameterization using spherical harmonic description. Two point-wise metrics, direct displacement between the individual surface and atlas surface and its normal projection, were used to quantify the surface morphology of amygdala. Statistical analysis revealed significant correlations between the two surface metrics and trait anxiety levels, which were located around the lateral and central nucleus of right amygdala. Our results provided localized information for the association between amygdala and trait anxiety, and suggested a central role of the lateral and central nucleus of right amygdala on trait anxiety.
language: eng
source:
identifier: E-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0047817
fulltext: fulltext
issn:
  • 19326203
  • 1932-6203
url: Link


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titleSurface morphology of amygdala is associated with trait anxiety.
creatorLi, Shuyu ; Wang, Yanan ; Xu, Pengfei ; Pu, Fang ; Li, Deyu ; Fan, Yubo ; Gong, Gaolang ; Luo, Yuejia
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identifierE-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0047817
subjectAdolescent–Pathology ; Adult–Pathology ; Amygdala–Pathology ; Anxiety–Pathology ; Anxiety Disorders–Pathology ; Female–Pathology ; Humans–Pathology ; Imaging, Three-Dimensional–Pathology ; Magnetic Resonance Imaging–Pathology ; Male–Pathology ; Young Adult–Pathology
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descriptionPrevious neuroimaging studies have suggested a role of amygdala in trait anxiety level, in which amygdala was typically treated as a whole. To date, it remains unknown whether the morphology of specific subregions of amygdala are associated with trait anxiety. Here, we employed a shape analysis approach to locate the association between its morphology and trait anxiety on the surface of amygdala. 24 healthy young participants were included. The boundary of amygdala for each subject was first manually outlined using high-resolution magnetic resonance (MR) image, followed by 3D surface reconstruction and parameterization using spherical harmonic description. Two point-wise metrics, direct displacement between the individual surface and atlas surface and its normal projection, were used to quantify the surface morphology of amygdala. Statistical analysis revealed significant correlations between the two surface metrics and trait anxiety levels, which were located around the lateral and central nucleus of right amygdala. Our results provided localized information for the association between amygdala and trait anxiety, and suggested a central role of the lateral and central nucleus of right amygdala on trait anxiety.
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