Cited by 331Autism Spectrum Disorder ResearchFunctional Brain Connectivity StudiesGenetics and Neurodevelopmental Disorders

The Cerebral Metabolic Landscape in Autism: Intercorrelations of Regional Glucose Utilization

Horwitz, Barry·1988·Archives of Neurology

Abstract

Correlations between regional cerebral metabolic rates for glucose (rCMRglc), determined by positron emission tomography using 18F-2-deoxy-2-fluoro-D-glucose, provide a measure of the functional associations between brain regions. We compared correlations between ratios of resting rCMRglc to global brain metabolism from 14 healthy autistic men (ages, 18 to 39 years) with those from 14 matched control subjects. The autistic group showed significantly fewer large positive correlations between frontal and parietal regions, particularly those with the left inferior frontal region and its right hemispheric homologue, and significantly lower correlations of the thalamus, caudate nucleus, lenticular nucleus, and insula with frontal and parietal regions, with many correlations negative in the autistic group that were positive in the control group. These results are compatible with functionally impaired interactions between frontal/parietal regions and the neostriatum and thalamus, regions that subserve directed attention.

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Crossref · 10.1001/archneur.1988.00520310055018

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43 of 43 references verified0 citation errors · 0 not checkable

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  • Neuroimaging studies provide evidence that caudate and frontal-striatal circuitries are dysfunctional areas in ASD.

    “Neuroimaging studies provide evidence that caudate and frontal-striatal circuitries are dysfunctional areas in ASD28–30.”
  • The findings are concordant with studies using other imaging methods and support the aberrant connectivity hypothesis in autism.

    “Findings were concordant with studies applying other imaging methods, supporting the aberrant connectivity hypothesis in autism (15-18).”

    From A Meta-Analysis of the Corpus Callosum in Autism (2009) · cites this paper as [16]

  • Neuroimaging studies of the thalamus have found atypical functional and anatomical connectivity, decreased thalamic volume, lower levels of metabolites, and reduced neuronal integrity in ASD.

    “Neuroimaging studies of the thalamus have found atypical functional and anatomical connectivity (Horwitz et al., 1988, Nair et al., 2013), decreased thalamic volume (Tsatsanis et al., 2003, Tamura et al., 2010), lower levels of N-acetylasparate, phosphocreatine, creatin, and choline-containing metabolites (Hardan et al., 2008, Haznedar et al., 2006), and reduced neuronal integrity (Friedman et al.”

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Authors
Horwitz, B.
Affiliations
National Institutes of Health (US)
Corresponding author
Horwitz, Barry
Venue
Archives of Neurology
Published
1988-07-01
Volume
45
Issue
7
Pages
749
ISSN
0003-9942 (ISSN-L)
OpenAlex
W1993621007
Cited by
331
References
43
Citations by year
2026: 1 · 2025: 4 · 2024: 4 · 2023: 7 · 2022: 8 · 2021: 6 · 2020: 8 · 2019: 7 · 2018: 5 · 2017: 7 · 2016: 12 · 2015: 8 · 2014: 13 · 2013: 14 · 2012: 12
FWCI
4.51
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of Neurology (publishedVersion)
  • PubMed (publishedVersion)
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, regional cerebral glucose metabolism, brain functional connectivity, inferior frontal cortex, thalamus, caudate nucleus, insula, lentiform nucleus, directed attention, 18F-FDG PET
MeSH terms
Adolescent, Adult, Autistic Disorder, Basal Ganglia, Brain, Deoxyglucose, Glucose, Humans, Male, Statistics as Topic, Thalamus, Tissue Distribution, Tomography, Emission-Computed, Fluorodeoxyglucose F18

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