Cited by 188Functional Brain Connectivity StudiesAutism Spectrum Disorder ResearchGenetics and Neurodevelopmental Disorders

Largely typical patterns of resting-state functional connectivity in high-functioning adults with autism

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Tyszka, J. M., Kennedy, D. P., Paul, L. K., Adolphs, R.·2014·Cerebral Cortex

Abstract

A leading hypothesis for the neural basis of autism postulates globally abnormal brain connectivity, yet the majority of studies report effects that are either very weak, inconsistent across studies, or explain results incompletely. Here we apply multiple analytical approaches to resting-state BOLD-fMRI data at the whole-brain level. Neurotypical and high-functioning adults with autism displayed very similar patterns and strengths of resting-state connectivity. We found only limited evidence in autism for abnormal resting-state connectivity at the regional level and no evidence for altered connectivity at the whole-brain level. Regional abnormalities in functional connectivity in autism spectrum disorder were primarily in the frontal and temporal cortices. Within these regions, functional connectivity with other brain regions was almost exclusively lower in the autism group. Further examination showed that even small amounts of head motion during scanning have large effects on functional connectivity measures and must be controlled carefully. Consequently, we suggest caution in the interpretation of apparent positive findings until all possible confounding effects can be ruled out. Additionally, we do not rule out the possibility that abnormal connectivity in autism is evident at the microstructural synaptic level, which may not be reflected sensitively in hemodynamic changes measured with BOLD-fMRI.

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Crossref · 10.1093/cercor/bht040

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  • Our null results are in line with a previous study of high-functioning adults with ASD, which identified no meaningful differences in connectivity of any large-scale brain networks between ASD and control groups using ICA dual regression.

    “Of note, our null results are in line with a previous study of high-functioning adults with ASD, which identified no meaningful differences in connectivity of any large-scale brain networks between ASD and control groups using ICA dual regression (Tyszka et al., 2014).”

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Authors
Tyszka, J. M., Kennedy, D. P., Paul, L. K., & Adolphs, R.
Affiliations
California Institute of Technology (US)
Corresponding author
Tyszka, J. M.
Venue
Cerebral Cortex
Published
2013-02-20
Volume
24
Issue
7
Pages
1894-1905
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2168834656
Cited by
187
References
68
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 10 · 2022: 8 · 2021: 15 · 2020: 16 · 2019: 13 · 2018: 15 · 2017: 22 · 2016: 30 · 2015: 19 · 2014: 18 · 2013: 10
FWCI
14.02
Type
journal article
Language
en
Open access
Locations
  • Cerebral Cortex (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
National Institute of Mental Health (K99MH094409, R00MH094409, R01MH080721, P50MH094258)
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, resting-state functional connectivity, high-functioning adults, global brain connectivity, frontal cortex, temporal cortex, BOLD fMRI, hemodynamic response
MeSH terms
Adult, Autistic Disorder, Brain, Brain Mapping, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Oxygen, Rest, Statistics as Topic

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