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Volumetric associations between uncinate fasciculus, amygdala, and trait anxiety
Open accessAbstract
BACKGROUND: Recent investigations of white matter (WM) connectivity suggest an important role of the uncinate fasciculus (UF), connecting anterior temporal areas including the amygdala with prefrontal-/orbitofrontal cortices, for anxiety-related processes. Volume of the UF, however, has rarely been investigated, but may be an important measure of structural connectivity underlying limbic neuronal circuits associated with anxiety. Since UF volumetric measures are newly applied measures, it is necessary to cross-validate them using further neural and behavioral indicators of anxiety. RESULTS: In a group of 32 subjects not reporting any history of psychiatric disorders, we identified a negative correlation between left UF volume and trait anxiety, a finding that is in line with previous results. On the other hand, volume of the left amygdala, which is strongly connected with the UF, was positively correlated with trait anxiety. In addition, volumes of the left UF and left amygdala were inversely associated. CONCLUSIONS: The present study emphasizes the role of the left UF as candidate WM fiber bundle associated with anxiety-related processes and suggests that fiber bundle volume is a WM measure of particular interest. Moreover, these results substantiate the structural relatedness of UF and amygdala by a non-invasive imaging method. The UF-amygdala complex may be pivotal for the control of trait anxiety.
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“Structural abnormalities, such as reduced grey matter volume in the mPFC and weaker integrity of the uncinate fasciculus, have been reported in adults with anxious temperament and anxiety disorders24–28.”
From Multimodal evidence for delayed threat extinction learning in adolescence and young adulthood (2019) · cites this paper as [25]
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“Notably, weaker structural integrity of the uncinate fasciculus has been found in populations with anxious temperament24–27,32, suggesting that this tract may play a crucial role in anxiety aetiology.”
From Multimodal evidence for delayed threat extinction learning in adolescence and young adulthood (2019) · cites this paper as [25]
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Dissecting the uncinate fasciculus: disorders, controversies and a hypothesis.
Von Der Heide, R. J., Skipper, L. M., Klobusicky, E., & Olson, I. R. (2013) · Brain · doi:10.1093/brain/awt094 · Cited by 829
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Baur, V., Hänggi, J., Langer, N., & Jäncke, L. (2013) · Biological Psychiatry · doi:10.1016/j.biopsych.2012.06.003 · Cited by 258
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Metadata
- Authors
- Baur, V., Hänggi, J., & Jäncke, L.
- Affiliations
- University of Zurich (CH)
- Corresponding author
- Baur, Volker
- Venue
- BMC Neuroscience
- Published
- 2012-01-04
- Volume
- 13
- Issue
- 1
- Pages
- 4-4
- ISSN
- 1471-2202 (ISSN-L)
- PMC
- PMC3398321
- OpenAlex
- W2158476113
- Cited by
- 121
- References
- 43
- Citations by year
- 2026: 2 · 2025: 6 · 2024: 6 · 2023: 7 · 2022: 7 · 2021: 8 · 2020: 11 · 2019: 10 · 2018: 11 · 2017: 11 · 2016: 10 · 2015: 11 · 2014: 9 · 2013: 9 · 2012: 3
- FWCI
- 7.73
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- BMC Neuroscience (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Zurich Open Repository and Archive (University of Zurich)
- Funders
- Universität Zürich
- Topics
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Keywords
- uncinate fasciculus, amygdala, trait anxiety, white matter volume, structural connectivity, limbic system, anterior temporal lobe
- MeSH terms
- Adult, Amygdala, Anxiety Disorders, Brain Mapping, Female, Hippocampus, Humans, Functional Laterality, Male, Nerve Fibers, Myelinated, Neural Pathways, Psychometrics, Young Adult
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