Cited by 212Hemispheric Asymmetry in NeuroscienceAdvanced Neuroimaging Techniques and ApplicationsMorphological variations and asymmetry

Mapping sulcal pattern asymmetry and local cortical surface gray matter distribution in vivo: maturation in perisylvian cortices

Sowell, E. R.·2002·Cerebral Cortex

Abstract

Previous in vivo morphometric studies of human brain maturation between childhood and young adulthood have revealed a spatial and temporal pattern of progressive brain changes that is consistent with the post mortem cytoarchitectonic and cognitive developmental literatures. In this study, we mapped age differences in structural asymmetries at the cortical surface in groups of normally developing children (7-11 years), adolescents (12-16 years) and young adults (23-30 years) using novel surface-based mesh modeling image analytic methods. We also assessed relationships between cortical surface sulcal asymmetry and the local density of the underlying cortical gray matter. Results from this study reveal that perisylvian sulcal asymmetries are much more prominent in the adults than in the children studied. The superior posterior extent of the Sylvian fissure in the right hemisphere is approximately 7 mm more superior in the average adult than in the average child studied, whereas little difference is observed during this age range in the location of this anatomical structure in the left hemisphere. Age-related differences in Sylvian fissure asymmetry were significant (P = 0.0129, permutation test), showing increased asymmetry with increasing age. We also show age-related increases in local gray matter proportion bilaterally in the temporo-parietal cortices that are anatomically and temporally related to the sulcal asymmetries. Results from this cross-sectional study imply that asymmetries in the Sylvian fissure are dynamically changing into young adulthood and show that variability in brain tissue density is related to asymmetry in this region. These morphological differences may be related to changing cognitive abilities and are relevant in interpreting results from studies of abnormal brain development where perisylvian brain regions are implicated.

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Crossref · 10.1093/cercor/12.1.17

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  • Individual sulci are known to vary at least up to 1 cm.

    “This is especially true when the method is applied across different groups of subjects, although individual sulci are known to vary at least up to 1 cm (Sowell et al., 2002; Thompson et al., 1996).”

    From Specialization within the ventral stream: the case for the visual word form area (2004) · cites this paper as Sowell et al., 2002

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Authors
Sowell, E. R.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Sowell, E. R.
Venue
Cerebral Cortex
Published
2002-01-01
Volume
12
Issue
1
Pages
17-26
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2169870125
Cited by
212
References
47
Citations by year
2025: 1 · 2024: 1 · 2023: 4 · 2022: 1 · 2021: 8 · 2020: 4 · 2019: 6 · 2018: 4 · 2017: 5 · 2016: 7 · 2015: 6 · 2014: 8 · 2013: 9 · 2012: 8
FWCI
8.88
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institutes of Health (5r01hd023854-07, 5t32mh016381-20)
  • National Institute of Mental Health (K01 MH 01733, 5-T32-MH16381, K01MH001733, P20 MH/DA52176)
  • National Institute of Neurological Disorders and Stroke (P50 NS 22343, P50NS022343)
  • National Center for Research Resources (P41RR013642, P41 RR13642)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01 HD 23854)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hemispheric Asymmetry in Neuroscience
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Physical Sciences › Mathematics › Geometry and Topology › Morphological variations and asymmetry
Keywords
brain maturation, perisylvian cortex, Sylvian fissure, brain aging, children and adolescents, temporoparietal cortex, hemispheric lateralization, brain development
MeSH terms
Adolescent, Adult, Aging, Brain Mapping, Cerebral Cortex, Child, Female, Humans, Image Interpretation, Computer-Assisted, Functional Laterality, Magnetic Resonance Imaging, Male

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