Cited by 95Autism Spectrum Disorder ResearchGenetics and Neurodevelopmental DisordersSchizophrenia research and treatment

Surface-based morphometry of the cortical architecture of autism spectrum disorders: volume, thickness, area, and gyrification

Libero, Lauren E., DeRamus, Thomas P., Deshpande, Hrishikesh D., Kana, Rajesh K.·2014·Neuropsychologia

Abstract

Structural neuroimaging studies of autism spectrum disorder (ASD) have uncovered widespread neuroanatomical abnormalities, which may have a significant impact on brain function, connectivity, and on behavioral symptoms of autism. The findings of previous structural MRI studies have largely been distributed across several brain areas, with limited consistency. The current study examined neuroanatomical abnormalities by comparing surface-based measures of cortical morphology (CT: cortical thickness, CSA: cortical surface area, CV: cortical volume, and GI: gyrification index) in 55 high-functioning children and adults with ASD to 60 age-and-IQ-matched typically developing (TD) peers. A few brain areas, the fusiform gyrus (FG), middle temporal gyrus (MTG), and inferior frontal gyrus (IFG), emerged to be primarily different in their morphology between the two groups. Compared to TD participants, ASD participants had significantly smaller CV in left MTG, reduced CSA in bilateral MTG and FG, reduced GI in left supramarginal gyrus, and significantly increased CT in the pars opercularis of the IFG. As a function of age, ASD participants had significant reductions in: CT in the pars opercularis, CSA of the left rostral middle frontal gyrus, and GI for left supramarginal gyrus. Thus, alterations in cortical morphology in ASD were seen primarily in regions that are considered part of the social brain. Overall, these findings point to: neuroanatomical alterations in social brain areas, developmental differences in neuroanatomy, and the need to study neuroanatomy at multiple levels in order to better characterize the cortical architecture of ASD.

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Crossref · 10.1016/j.neuropsychologia.2014.07.001

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Authors
Libero, L. E., DeRamus, T. P., Deshpande, H. D., & Kana, R. K.
Affiliations
University of Alabama at Birmingham (US)
Corresponding author
Kana, Rajesh K.
Venue
Neuropsychologia
Publisher
Elsevier BV
Published
2014-09
Volume
62
Pages
1-10
ISSN
0028-3932 (ISSN-L)
OpenAlex
W2062464666
Cited by
95
References
139
Citations by year
2026: 3 · 2025: 9 · 2024: 5 · 2023: 10 · 2022: 10 · 2021: 11 · 2020: 11 · 2019: 5 · 2018: 5 · 2017: 7 · 2016: 11 · 2015: 7 · 2014: 1
FWCI
4.83
Type
journal article
Language
en
Open access
closed
Locations
  • Neuropsychologia (publishedVersion)
  • PubMed (publishedVersion)
Funders
UAB Department of Psychology funds
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
autism spectrum disorder, cortical morphology, cortical thickness, cortical surface area, cortical volume, gyrification index, social brain, fusiform gyrus, middle temporal gyrus, inferior frontal gyrus, supramarginal gyrus, high-functioning autism
MeSH terms
Adolescent, Adult, Age Factors, Brain Mapping, Cerebral Cortex, Child, Child Development Disorders, Pervasive, Female, Humans, Image Processing, Computer-Assisted, Functional Laterality, Magnetic Resonance Imaging, Male, Statistics as Topic, Young Adult

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