Cited by 207Autism Spectrum Disorder ResearchFunctional Brain Connectivity StudiesGenetics and Neurodevelopmental Disorders

Atypically diffuse functional connectivity between caudate nuclei and cerebral cortex in autism

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Turner, Katherine C, Frost, Leonard, Linsenbardt, David, McIlroy, John R, Müller, Ralph-Axel·2006·Behavioral and Brain Functions

Abstract

BACKGROUND: Autism is a neurodevelopmental disorder affecting sociocommunicative behavior, but also sensorimotor skill learning, oculomotor control, and executive functioning. Some of these impairments may be related to abnormalities of the caudate nuclei, which have been reported for autism. METHODS: Our sample was comprised of 8 high-functioning males with autism and 8 handedness, sex, and age-matched controls. Subjects underwent functional MRI scanning during performance on simple visuomotor coordination tasks. Functional connectivity MRI (fcMRI) effects were identified as interregional blood oxygenation level dependent (BOLD) signal cross-correlation, using the caudate nuclei as seed volumes. RESULTS: In the control group, fcMRI effects were found in circuits with known participation of the caudate nuclei (associative, orbitofrontal, oculomotor, motor circuits). Although in the autism group fcMRI effects within these circuits were less pronounced or absent, autistic subjects showed diffusely increased connectivity mostly in pericentral regions, but also in brain areas outside expected anatomical circuits (such as visual cortex). CONCLUSION: These atypical connectivity patterns may be linked to developmental brain growth disturbances recently reported in autism and suggest inefficiently organized functional connectivity between caudate nuclei and cerebral cortex, potentially accounting for stereotypic behaviors and executive impairments.

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  • A resting-state PET study found weaker correlations in glucose consumption between frontal regions and both striatum and thalamus in young adults with ASD compared to typical adults.

    “a resting-state positron-emission-tomography study found weaker correlations in glucose consumption between frontal regions and both striatum and thalamus in young adults with ASD compared to typical adults (TA) (34).”
  • Abnormal subcortical-cortical FC has been detected in ASD.

    “Although infrequently examined, abnormal subcortical-cortical FC has been detected in ASD.”

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  1. [23]23. Posner MI DiGirolamo G Attention in Cognitive Neuroscience: An Overview In MS Gazzaniga (ed) The New Cognitive Neurosciences Second Edition 2000 621 632

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Authors
Turner, K. C., Frost, L., Linsenbardt, D., McIlroy, J. R., & Müller, R.-A.
Affiliations
San Diego State University (US)
Corresponding author
Müller, Ralph-Axel
Venue
Behavioral and Brain Functions
Published
2006-10-16
Volume
2
Issue
1
Pages
34-34
ISSN
1744-9081 (ISSN-L)
OpenAlex
W1821241690
Cited by
207
References
108
Citations by year
2026: 7 · 2025: 8 · 2024: 4 · 2023: 5 · 2022: 4 · 2021: 13 · 2020: 13 · 2019: 12 · 2018: 11 · 2017: 7 · 2016: 8 · 2015: 14 · 2014: 17 · 2013: 22 · 2012: 13
FWCI
4.37
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Behavioral and Brain Functions (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (R01MH036840)
  • National Institute on Deafness and Other Communication Disorders (R01DC006155)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
autism spectrum disorder, caudate nucleus, functional connectivity, cerebral cortex, visuomotor coordination, oculomotor control, executive function, stereotypy, visual cortex, orbitofrontal cortex, motor circuits

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