Cited by 55Advanced Neuroimaging Techniques and ApplicationsFunctional Brain Connectivity StudiesNeural and Behavioral Psychology Studies

Extraction of prefronto-amygdalar pathways by combining probability maps

Bracht, Tobias, Tüscher, Oliver, Schnell, Susanne, Kreher, Björn, Rüsch, Nicolas, Glauche, Volkmar, Lieb, Klaus, Ebert, Dieter +5 more·2009·Psychiatry Research: Neuroimaging

Abstract

Many recent studies reported altered functional connectivity within the frontolimbic circuitry in a wide range of neuropsychiatric disorders. However, functional connectivity must rely on structural connections. In this study we applied a novel probabilistic fiber tracking method to assess the structural connectivity between the amygdala and different prefrontal brain regions in vivo. Twenty healthy subjects were investigated with diffusion tensor imaging. Probabilistic fiber tracking was started from the amygdala and different prefrontal brain regions. Resulting probability maps were combined using an extended multiplication of probabilistic maps to identify the most probable anatomical pathways connecting these structures. We found one ventral pathway through the uncinate fascicle, connecting the amygdala and the medial and lateral orbitofrontal cortices. In addition to this ventral pathway, we depicted distinct dorsal pathways (medial and lateral), which connect the amygdala with the anterior cingulate cortex and the dorsolateral prefrontal cortex. The dorso-medial pathway proceeds through the inferior thalamic peduncle, while the dorsolateral pathway travels through the external capsule. We believe that our approach provides a promising tool to assess the integrity of specific structural connections in patients with neuropsychiatric disorders.

Integrity signals

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Crossref · 10.1016/j.pscychresns.2009.05.001

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Authors
Bracht, T., Tüscher, O., Schnell, S., Kreher, B., Rüsch, N., Glauche, V., Lieb, K., Ebert, D., Il'yasov, K. A., Hennig, J., Weiller, C., van Elst, L. T., & Saur, D.
Affiliations
  • University of Freiburg (DE)
  • University Medical Center of the Johannes Gutenberg University Mainz (DE)
  • Kazan Federal University (RU)
  • University Medical Center Freiburg (DE)
Venue
Psychiatry Research: Neuroimaging
Publisher
Elsevier BV
Published
2009-12
Volume
174
Issue
3
Pages
217-222
ISSN
0925-4927 (ISSN-L)
OpenAlex
W2036713747
Cited by
55
References
46
Citations by year
2025: 1 · 2024: 2 · 2023: 1 · 2022: 5 · 2021: 4 · 2020: 4 · 2019: 1 · 2018: 5 · 2017: 1 · 2016: 2 · 2015: 4 · 2014: 2 · 2013: 7 · 2012: 4
FWCI
4.02
Type
journal article
Language
en
Open access
closed
Locations
  • Psychiatry Research Neuroimaging (publishedVersion)
  • PubMed (publishedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
amygdala, prefrontal cortex, structural connectivity, probabilistic tractography, uncinate fasciculus, orbitofrontal cortex, anterior cingulate cortex, dorsolateral prefrontal cortex, external capsule, diffusion tensor imaging
MeSH terms
Adolescent, Adult, Amygdala, Brain Mapping, Female, Humans, Middle Aged, Nerve Fibers, Myelinated, Nerve Net, Neural Pathways, Probability, Prefrontal Cortex, Diffusion Magnetic Resonance Imaging, Young Adult

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