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Cited by 462

The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.

The Convergence of Maturational Change and Structural Covariance in Human Cortical Networks

Open access
Alexander-Bloch, Aaron, Raznahan, Armin, Bullmore, Ed, Giedd, Jay·2013·The Journal of Neuroscience

Abstract

Large-scale covariance of cortical thickness or volume in distributed brain regions has been consistently reported by human neuroimaging studies. The mechanism of this population covariance of regional cortical anatomy has been hypothetically related to synchronized maturational changes in anatomically connected neuronal populations. Brain regions that grow together, i.e., increase or decrease in volume at the same rate over the course of years in the same individual, are thus expected to demonstrate strong structural covariance or anatomical connectivity across individuals. To test this prediction, we used a structural MRI dataset on healthy young people (N= 108; aged 9–22 years at enrollment), comprising 3–6 longitudinal scans on each participant over 6–12 years of follow-up. At each of 360 regional nodes, and for each participant, we estimated the following: (1) the cortical thickness in the median scan and (2) the linear rate of change in cortical thickness over years of serial scanning. We constructed structural and maturational association matrices and networks from these measurements. Both structural and maturational networks shared similar global and nodal topological properties, as well as mesoscopic features including a modular community structure, a relatively small number of highly connected hub regions, and a bias toward short distance connections. Using resting-state functional magnetic resonance imaging data on a subset of the sample (N= 32), we also demonstrated that functional connectivity and network organization was somewhat predictable by structural/maturational networks but demonstrated a stronger bias toward short distance connections and greater topological segregation. Brain structural covariance networks are likely to reflect synchronized developmental change in distributed cortical regions.

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Crossref · 10.1523/jneurosci.3554-12.2013

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Metadata

Authors
Alexander-Bloch, A., Raznahan, A., Bullmore, E., & Giedd, J.
Venue
The Journal of Neuroscience
Published
2013-02-13
Volume
33
Issue
7
Pages
2889-2899
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2086686257
Cited by
462
References
20
FWCI
17.00
Type
journal article
Language
en
Open access
hybrid

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