Cited by 301Autism Spectrum Disorder ResearchAdvanced Neuroimaging Techniques and ApplicationsGenetics and Neurodevelopmental Disorders

Altered white matter connectivity as a neural substrate for social impairment in Autism spectrum disorder

Ameis, Stephanie H., Catani, Marco·2015·Cortex

Abstract

Background Autism Spectrum Disorder (ASD) symptoms have been hypothesized to result from altered brain connectivity. The 'disconnectivity' hypothesis has been used to explain characteristic impairments in socio-emotional function, observed clinically in ASD. Here, we review the evidence for impaired white matter connectivity as a neural substrate for socio-emotional dysfunction in ASD. A review of diffusion tensor imaging (DTI) studies, and focused discussion of relevant post-mortem, structural, and functional neuroimaging studies, is provided. Methods Studies were identified using a sensitive search strategy in MEDLINE, Embase and PsycINFO article databases using the OvidSP database interface. Search terms included database subject headings for the concepts of pervasive developmental disorders, and DTI. Seventy-two published DTI studies examining white matter microstructure in ASD were reviewed. A comprehensive discussion of DTI studies that examined white matter tracts linking socio-emotional structures is presented. Results Several DTI studies reported microstructural differences indicative of developmental alterations in white matter organization, and potentially myelination, in ASD. Altered structure within long-range white matter tracts linking socio-emotional processing regions was implicated. While alterations of the uncinate fasciculus and frontal and temporal thalamic projections have been associated with social symptoms in ASD, few studies examined association of t…

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Crossref · 10.1016/j.cortex.2014.10.014

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  • In ASD, there is a recurrent pattern of reduced FA and increased diffusivity, consistent with altered development.

    “Overall, there is a recurrent pattern of reduced FA and increased diffusivity, consistent with altered development (Ameis and Catani, 2015; Rane et al., 2015; Travers et al., 2012).”

    From The cingulum bundle: Anatomy, function, and dysfunction (2018) · cites this paper as Ameis and Catani, 2015

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Authors
Ameis, S. H., & Catani, M.
Affiliations
  • Centre for Addiction and Mental Health (CA)
  • King's College London (GB)
Corresponding author
Ameis, Stephanie H.
Venue
Cortex
Publisher
Elsevier BV
Published
2015-01
Volume
62
Pages
158-181
ISSN
0010-9452 (ISSN-L)
OpenAlex
W2034963983
Cited by
301
References
29
Citations by year
2026: 17 · 2025: 22 · 2024: 25 · 2023: 17 · 2022: 20 · 2021: 22 · 2020: 37 · 2019: 32 · 2018: 22 · 2017: 35 · 2016: 32 · 2015: 19
FWCI
2.78
Type
journal article
Language
en
Open access
closed
Locations
  • Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • Ontario Mental Health Foundation
  • CAMH Foundation
  • Guy's and St Thomas' Charity
  • Wellcome Trust
  • Medical Research Council
  • National Division of the South London
  • Maudsley NHS Foundation Trust
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
autism spectrum disorder, white matter connectivity, social dysfunction, uncinate fasciculus, thalamic projections, myelination, white matter microstructure, diffusion tensor imaging
MeSH terms
Brain, Child Development Disorders, Pervasive, Humans, Limbic System, Magnetic Resonance Imaging, Neural Pathways, Diffusion Tensor Imaging, Functional Neuroimaging, Social Skills, White Matter

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