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Related Experiment Videos

Executive function oculomotor tasks in girls with ADHD.

F X Castellanos1, F F Marvasti, J L Ducharme

  • 1Child Psychiatry Branch, NIMH, Bethesda, MD, USA.

Journal of the American Academy of Child and Adolescent Psychiatry
|May 10, 2000
PubMed
Summary

Girls with attention-deficit/hyperactivity disorder (ADHD) show executive function deficits in working memory and response inhibition. Oculomotor tasks reveal these impairments, suggesting similar ADHD neurobiology in both sexes.

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Psychiatry

Background:

  • Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder affecting executive functions.
  • Oculomotor tasks are increasingly used to investigate cognitive processes and potential biomarkers.

Purpose of the Study:

  • To evaluate executive function in girls with ADHD using oculomotor tasks.
  • To explore oculomotor tasks as trait markers for neurobiological research in ADHD.

Main Methods:

  • Thirty-two girls with ADHD (aged 6–13) and 20 controls completed smooth pursuit, delayed response, and go-no go oculomotor tasks.
  • Tasks assessed attention, working memory, and response inhibition.

Main Results:

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  • Girls with ADHD had significantly poorer performance on the delayed response task (32% vs. 62% correct) and made more errors on the go-no go task.
  • No significant differences were found in smooth pursuit performance between groups.
  • Practice effects were observed in the go-no go task with repeated testing.

    • Conclusions:

    • Girls with ADHD exhibit executive function impairments, supporting similar ADHD pathophysiology across sexes.
    • Oculomotor tasks demonstrate ADHD-related deficits, but practice effects may impact their use in neurobiological studies.