Cited by 983Neural and Behavioral Psychology StudiesFunctional Brain Connectivity StudiesAdvanced Neuroimaging Techniques and Applications

The DOI matches its Crossref record; 33 of the 34 references it cites were found in a registry or an index.

Mapping Continued Brain Growth and Gray Matter Density Reduction in Dorsal Frontal Cortex: Inverse Relationships during Postadolescent Brain Maturation

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Abstract

Recent in vivo structural imaging studies have shown spatial and temporal patterns of brain maturation between childhood, adolescence, and young adulthood that are generally consistent with postmortem studies of cellular maturational events such as increased myelination and synaptic pruning. In this study, we conducted detailed spatial and temporal analyses of growth and gray matter density at the cortical surface of the brain in a group of 35 normally developing children, adolescents, and young adults. To accomplish this, we used high-resolution magnetic resonance imaging and novel computational image analysis techniques. For the first time, in this report we have mapped the continued postadolescent brain growth that occurs primarily in the dorsal aspects of the frontal lobe bilaterally and in the posterior temporo-occipital junction bilaterally. Notably, maps of the spatial distribution of postadolescent cortical gray matter density reduction are highly consistent with maps of the spatial distribution of postadolescent brain growth, showing an inverse relationship between cortical gray matter density reduction and brain growth primarily in the superior frontal regions that control executive cognitive functioning. Inverse relationships are not as robust in the posterior temporo-occipital junction where gray matter density reduction is much less prominent despite late brain growth in these regions between adolescence and adulthood. Overall brain growth is not significant between childhood and adolescence, but close spatial relationships between gray matter density reduction and brain growth are observed in the dorsal parietal and frontal cortex. These results suggest that progressive cellular maturational events, such as increased myelination, may play as prominent a role during the postadolescent years as regressive events, such as synaptic pruning, in determining the ultimate density of mature frontal lobe cortical gray matter.

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Crossref · 10.1523/jneurosci.21-22-08819.2001

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Citations

Cites

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    “Using the methods described here, it is possible to find smaller regions of gray matter density gain and loss (or growth and shrinkage) within the same larger lobar regions typically measured in volumetric studies (Jernigan et al., 1991; Reiss et al., 1996; Giedd et al., 1999; Sowell et al., 2001b).”
    BackgroundMethodResultInfluential
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    “Future studies should also use diffusion tensor imaging (Pierpaoli et al., 1996) as an approach to disentangle increased white matter from synaptic loss, because increased myelination would increase the local diffusion anisotropy, whereas synaptic pruning should not increase the directional…”
    Background
  • “It may not be unreasonable to hypothesize that improved accuracy (i.e., improved cognitive task performance) may result from regressive changes such as synaptic pruning, given that unused or less efficient synaptic connections are being pruned away during this age range ( Huttenlocher, 1979 ).”
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    BackgroundSelf-citation
  • In vivo evidence for post-adolescent brain maturation in frontal and striatal regions

    Sowell, E. R., Thompson, P. M., Holmes, C. J., Jernigan, T. L., & Toga, A. W. (1999) · Nature Neuroscience · doi:10.1038/13154 · Cited by 1,439 · cited 15×

    “Because the greatest changes in gray matter density occur in the dorsal frontal cortex between adolescence and adulthood (Sowell et al., 1999a), this was the region that we targeted in the permutation analyses (all gray matter brain tissue anterior to the central sulcus and superior to the axial…”
    BackgroundResultInfluentialSelf-citation
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    “As shown in Figure 5, between adolescence and adulthood, large, diffuse regions of shrinkage or decreased DFC are observed in frontal and parietal regions surrounding the frontal and temporal growth areas, probably resulting from large increases in cortical CSF known to occur more prominently between adolescence and a…”
    Background
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    “…cortical gray matter density has been observed primarily in the dorsal parietal and some frontal regions between childhood and adolescence (Sowell et al., 1999b) along with an increase in white matter density in the posterior limb of the internal capsule and arcuate fasciculus (Paus et al., 1999).”
    Background

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Metadata

Authors
Sowell, E. R., Thompson, P. M., Tessner, K. D., & Toga, A. W.
Affiliations
University of California, Los Angeles (US)
Venue
The Journal of Neuroscience
Published
2001-11-15
Volume
21
Issue
22
Pages
8819-8829
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2095621691
Cited by
983
References
34
Citations by year
2026: 12 · 2025: 19 · 2024: 24 · 2023: 24 · 2022: 27 · 2021: 34 · 2020: 78 · 2019: 52 · 2018: 35 · 2017: 28 · 2016: 37 · 2015: 51 · 2014: 45 · 2013: 67 · 2012: 50
FWCI
10.83
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation (9601356)
  • National Institutes of Health (5t32mh016381-20)
  • National Institute of Mental Health (K01 MH 01733, 5-T32-MH16381, K01MH001733, P20 MH/DA52176)
  • National Institute of Neurological Disorders and Stroke (NS38753, R01NS038753)
  • National Center for Research Resources (P41RR013642, RR 13642, P41 RR13642)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
Keywords
brain maturation, myelination, synaptic pruning, parietal cortex, executive function, developmental neuroimaging, children, adolescents and young adults
MeSH terms
Adolescent, Adult, Aging, Brain, Brain Mapping, Cell Count, Child, Female, Frontal Lobe, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Occipital Lobe, Temporal Lobe

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