Cited by 680Functional Brain Connectivity StudiesAutism Spectrum Disorder ResearchGenetics and Neurodevelopmental Disorders

Abnormal functional connectivity of default mode sub-networks in autism spectrum disorder patients

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Assaf, Michal, Jagannathan, Kanchana, Calhoun, Vince D., Miller, Laura, Stevens, Michael C., Sahl, Robert, O'Boyle, Jacqueline G., Schultz, Robert T. +1 more·2010·NeuroImage

Abstract

Autism spectrum disorders (ASDs) are characterized by deficits in social and communication processes. Recent data suggest that altered functional connectivity (FC), i.e. synchronous brain activity, might contribute to these deficits. Of specific interest is the FC integrity of the default mode network (DMN), a network active during passive resting states and cognitive processes related to social deficits seen in ASD, e.g. Theory of Mind. We investigated the role of altered FC of default mode sub-networks (DM-SNs) in 16 patients with high-functioning ASD compared to 16 matched healthy controls of short resting fMRI scans using independent component analysis (ICA). ICA is a multivariate data-driven approach that identifies temporally coherent networks, providing a natural measure of FC. Results show that compared to controls, patients showed decreased FC between the precuneus and medial prefrontal cortex/anterior cingulate cortex, DMN core areas, and other DM-SNs areas. FC magnitude in these regions inversely correlated with the severity of patients' social and communication deficits as measured by the Autism Diagnostic Observational Schedule and the Social Responsiveness Scale. Importantly, supplemental analyses suggest that these results were independent of treatment status. These results support the hypothesis that DM-SNs under-connectivity contributes to the core deficits seen in ASD. Moreover, these data provide further support for the use of data-driven analysis with resting-state data for illuminating neural systems that differ between groups. This approach seems especially well suited for populations where compliance with and performance of active tasks might be a challenge, as it requires minimal cooperation.

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Crossref · 10.1016/j.neuroimage.2010.05.067

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  1. Rutter M Bailey A Lord C Social Communication Questionnaire–WPS edition Western Psychological Services 2003 Los Angeles, California

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Authors
Assaf, M., Jagannathan, K., Calhoun, V. D., Miller, L., Stevens, M. C., Sahl, R., O'Boyle, J. G., Schultz, R. T., & Pearlson, G. D.
Affiliations
  • Hartford Hospital (US)
  • Children's Hospital of Philadelphia (US)
Corresponding author
Assaf, Michal
Venue
NeuroImage
Publisher
Elsevier BV
Published
2010-10
Volume
53
Issue
1
Pages
247-256
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2063167566
Cited by
680
References
71
Citations by year
2026: 28 · 2025: 37 · 2024: 33 · 2023: 28 · 2022: 39 · 2021: 52 · 2020: 52 · 2019: 60 · 2018: 53 · 2017: 39 · 2016: 41 · 2015: 47 · 2014: 47 · 2013: 46 · 2012: 43
FWCI
23.60
Type
journal article
Language
en
Open access
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Autism Speaks
  • National Institute of Biomedical Imaging and Bioengineering (R01EB000840, R01EB020407, R01EB006841)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
autism spectrum disorder, default mode network, functional connectivity, resting-state fMRI, independent component analysis, precuneus, medial prefrontal cortex, anterior cingulate cortex, theory of mind, high-functioning autism
MeSH terms
Adolescent, Brain, Child, Child Development Disorders, Pervasive, Female, Humans, Image Interpretation, Computer-Assisted, Magnetic Resonance Imaging, Male, Nerve Net, Neural Pathways, Sensitivity and Specificity, Reproducibility of Results, Young Adult

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