Cited by 280Advanced Neuroimaging Techniques and ApplicationsMedical and Biological SciencesNeurobiology of Language and Bilingualism

Analysis of the subcomponents and cortical terminations of the perisylvian superior longitudinal fasciculus: a fiber dissection and DTI tractography study

Martino, Juan, De Witt Hamer, Philip C., Berger, Mitchel S., Lawton, Michael T., Arnold, Christine M., de Lucas, Enrique Marco, Duffau, Hugues·2013·Brain Structure and Function

Abstract

The anatomy of the perisylvian component of the superior longitudinal fasciculus (SLF) has recently been reviewed by numerous diffusion tensor imaging tractography (DTI) studies. However, little is known about the exact cortical terminations of this tract. The aim of the present work is to isolate the different subcomponents of this tract with fiber dissection and DTI tractography, and to identify the exact cortical connections. Twelve postmortem human hemispheres (6 right and 6 left) were dissected using the cortex-sparing fiber dissection. In addition, three healthy brains were analyzed using DTI-based tractography software. The different components of the perisylvian SLF were isolated and the fibers were followed until the cortical terminations. Three segments of the perisylvian SLF were identified: (1) anterior segment, connecting the supramarginal gyrus and superior temporal gyrus with the precentral gyrus, (2) posterior segment, connecting the posterior portion of the middle temporal gyrus with the angular gyrus, and (3) long segment of the arcuate fasciculus that connects the middle and inferior temporal gyri with the precentral gyrus and posterior portion of the inferior and middle frontal gyri. In the present study, three different components of the perisylvian SLF were identified. For the first time, our dissections revealed that each component was connected to a specific cortical area within the frontal, parietal and temporal lobes. By accurately depicting not only the trajectory but also cortical connections of this bundle, it is possible to develop new insights into the putative functional role of this tract.

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Crossref · 10.1007/s00429-012-0386-5

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Authors
Martino, J., De Witt Hamer, P. C., Berger, M. S., Lawton, M. T., Arnold, C. M., de Lucas, E. M., & Duffau, H.
Affiliations
  • Marqués de Valdecilla University Hospital (ES)
  • University of California, San Francisco (US)
  • Inserm (FR)
Corresponding author
Martino, Juan
Venue
Brain Structure and Function
Published
2012-03-16
Volume
218
Issue
1
Pages
105-121
ISSN
  • 1863-2653 (ISSN-L)
  • 1863-2661
OpenAlex
W2038327846
Cited by
280
References
81
Citations by year
2026: 9 · 2025: 10 · 2024: 13 · 2023: 15 · 2022: 22 · 2021: 35 · 2020: 19 · 2019: 28 · 2018: 19 · 2017: 17 · 2016: 22 · 2015: 26 · 2014: 23 · 2013: 20 · 2012: 2
FWCI
17.14
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Structure and Function (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Health Sciences › Medicine › Anatomy › Medical and Biological Sciences
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
Keywords
superior longitudinal fasciculus, arcuate fasciculus, fiber dissection, diffusion tensor tractography, supramarginal gyrus, superior temporal gyrus, middle temporal gyrus, angular gyrus, precentral gyrus, inferior frontal gyrus, inferior temporal gyrus, white matter anatomy
MeSH terms
Adult, Aged, Cadaver, Cerebral Cortex, Dissection, Frontal Lobe, Humans, Middle Aged, Neural Pathways, Parietal Lobe, Temporal Lobe, Young Adult, Diffusion Tensor Imaging, Neuroanatomical Tract-Tracing Techniques

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