Cited by 394Advanced Neuroimaging Techniques and ApplicationsFunctional Brain Connectivity StudiesNeural and Behavioral Psychology Studies

Longitudinal changes in grey and white matter during adolescence

Giorgio, A., Watkins, K.E., Chadwick, M., James, S., Winmill, L., Douaud, G., De Stefano, N., Matthews, P.M. +3 more·2010·NeuroImage

Abstract

Brain development continues actively during adolescence. Previous MRI studies have shown complex patterns of apparent loss of grey matter (GM) volume and increases in white matter (WM) volume and fractional anisotropy (FA), an index of WM microstructure. In this longitudinal study (mean follow-up=2.5+/-0.5 years) of 24 adolescents, we used a voxel-based morphometry (VBM)-style analysis with conventional T1-weighted images to test for age-related changes in GM and WM volumes. We also performed tract-based spatial statistics (TBSS) analysis of diffusion tensor imaging (DTI) data to test for age-related WM changes across the whole brain. Probabilistic tractography was used to carry out quantitative comparisons across subjects in measures of WM microstructure in two fiber tracts important for supporting speech and motor functions (arcuate fasciculus [AF] and corticospinal tract [CST]). The whole-brain analyses identified age-related increases in WM volume and FA bilaterally in many fiber tracts, including AF and many parts of the CST. FA changes were mainly driven by increases in parallel diffusivity, probably reflecting increases in the diameter of the axons forming the fiber tracts. FA values of both left and right AF (but not of the CST) were significantly higher at the end of the follow-up than at baseline. Over the same period, widespread reductions in the cortical GM volume were found. These findings provide imaging-based anatomical data suggesting that brain maturation in adolescence is associated with structural changes enhancing long-distance connectivities in different WM tracts, specifically in the AF and CST, at the same time that cortical GM exhibits synaptic "pruning".

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Crossref · 10.1016/j.neuroimage.2009.08.003

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  • Increases in white matter volume are accompanied by progressive changes in MRI measures of white matter integrity, such as MTR and FA.

    “Increases in white matter volume are accompanied by progressive changes in MRI measures of white matter integrity, such as the magnetisation-transfer ratio (MTR) in MRI, and fractional anisotropy (FA) in diffusion-tensor MRI (Macchi et al., 2004; Giorgio et al., 2010; Paus et al., 2008a,b; Fornari et al., 2007).”

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Authors
Giorgio, A., Watkins, K. E., Chadwick, M., James, S., Winmill, L., Douaud, G., De Stefano, N., Matthews, P. M., Smith, S. M., Johansen-Berg, H., & James, A. C.
Affiliations
  • University of Siena (IT)
  • University of Oxford (GB)
  • Warneford Hospital (GB)
  • Hammersmith Hospital (GB)
Corresponding author
James, A.C.
Venue
NeuroImage
Publisher
Elsevier BV
Published
2010-01
Volume
49
Issue
1
Pages
94-103
ISSN
1053-8119 (ISSN-L)
OpenAlex
W1975692962
Cited by
394
References
70
Citations by year
2026: 11 · 2025: 7 · 2024: 10 · 2023: 17 · 2022: 17 · 2021: 22 · 2020: 29 · 2019: 32 · 2018: 26 · 2017: 18 · 2016: 23 · 2015: 31 · 2014: 27 · 2013: 38 · 2012: 27
FWCI
21.37
Type
journal article
Language
en
Open access
closed
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Use Siena air (University of Siena) (submittedVersion)
Funders
  • Wellcome Trust (078204)
  • Engineering and Physical Sciences Research Council (EP/F05727X/1)
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
adolescent brain development, gray matter loss, white matter volume, fractional anisotropy, arcuate fasciculus, corticospinal tract, axon diameter, synaptic pruning, brain maturation, white matter microstructure, longitudinal brain changes
MeSH terms
Adolescent, Aging, Arcuate Nucleus of Hypothalamus, Brain, Cross-Sectional Studies, Data Interpretation, Statistical, Female, Humans, Longitudinal Studies, Male, Pyramidal Tracts, Reference Values, Diffusion Magnetic Resonance Imaging, Young Adult

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