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Archival Report| Volume 76, ISSUE 5, P412-421, September 01, 2014

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The Development of the Neural Substrates of Cognitive Control in Adolescents with Autism Spectrum Disorders

  • Marjorie Solomon
    Correspondence
    Address correspondence to Marjorie Solomon, Ph.D., U. C. Davis Health System, M.I.N.D. Institute, 2825 50th Street, Sacramento, CA 95817
    Affiliations
    Department of Psychiatry and Behavioral Sciences, University of California, Davis

    M.I.N.D. Institute, Sacramento, California

    University of California, Davis Imaging Research Center, Sacramento, California
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  • Jong H. Yoon
    Affiliations
    Department of Psychiatry and Behavioral Sciences, University of California, Davis

    University of California, Davis Imaging Research Center, Sacramento, California
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  • J. Daniel Ragland
    Affiliations
    Department of Psychiatry and Behavioral Sciences, University of California, Davis

    University of California, Davis Imaging Research Center, Sacramento, California
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  • Tara A. Niendam
    Affiliations
    Department of Psychiatry and Behavioral Sciences, University of California, Davis

    University of California, Davis Imaging Research Center, Sacramento, California
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  • Tyler A. Lesh
    Affiliations
    Department of Psychiatry and Behavioral Sciences, University of California, Davis

    University of California, Davis Imaging Research Center, Sacramento, California
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  • Wonja Fairbrother
    Affiliations
    Department of Psychiatry and Behavioral Sciences, University of California, Davis

    M.I.N.D. Institute, Sacramento, California
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  • Cameron S. Carter
    Affiliations
    Department of Psychiatry and Behavioral Sciences, University of California, Davis

    University of California, Davis Imaging Research Center, Sacramento, California
    Search for articles by this author

      Background

      Autism spectrum disorders (ASDs) involve impairments in cognitive control. In typical development (TYP), neural systems underlying cognitive control undergo substantial maturation during adolescence. Development is delayed in adolescents with ASD. Little is known about the neural substrates of this delay.

      Methods

      We used event-related functional magnetic resonance imaging and a cognitive control task involving overcoming a prepotent response tendency to examine the development of cognitive control in young (ages 12–15; n = 13 with ASD and n = 13 with TYP) and older (ages 16–18; n = 14 with ASD and n = 14 with TYP) adolescents with whole-brain voxelwise univariate and task-related functional connectivity analyses.

      Results

      Older ASD and TYP showed reduced activation in sensory and premotor areas relative to younger ones. The older ASD group showed reduced left parietal activation relative to TYP. Functional connectivity analyses showed a significant age by group interaction with the older ASD group exhibiting increased functional connectivity strength between the ventrolateral prefrontal cortex and the anterior cingulate cortex, bilaterally. This functional connectivity strength was related to task performance in ASD, whereas that between dorsolateral prefrontal cortex and parietal cortex (Brodmann areas 9 and 40) was related to task performance in TYP.

      Conclusions

      Adolescents with ASD rely more on reactive cognitive control, involving last-minute conflict detection and control implementation by the anterior cingulate cortex and ventrolateral prefrontal cortex, versus proactive cognitive control requiring processing by dorsolateral prefrontal cortex and parietal cortex. Findings await replication in larger longitudinal studies that examine their functional consequences and amenability to intervention.

      Key Words

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