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Related Experiment Videos

Reduced brain metabolism in hyperactive girls

M Ernst1, L L Liebenauer, A C King

  • 1Section on Clinical Brain Imaging, National Institute of Mental Health, NIH, Bethesda, MD 20892.

Journal of the American Academy of Child and Adolescent Psychiatry
|July 1, 1994
PubMed
Summary

Attention-deficit hyperactivity disorder (ADHD) in girls shows lower brain glucose metabolism compared to neurotypical girls and ADHD boys. These findings highlight the need for further research into ADHD presentations in females.

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Area of Science:

  • Neuroscience
  • Pediatrics
  • Radiology

Background:

  • Attention-deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder.
  • Gender-based differences in ADHD symptomatology and neurobiology are increasingly recognized.

Purpose of the Study:

  • To investigate the impact of ADHD and gender on cerebral glucose metabolism (CMRglu).
  • To utilize positron emission tomography (PET) with 18F-fluorodeoxyglucose to assess brain activity.

Main Methods:

  • A cohort of 19 neurotypical and 20 adolescents with ADHD participated.
  • Cerebral glucose metabolism was measured using 18F-fluorodeoxyglucose PET during an auditory continuous performance task.

Main Results:

  • No significant global or regional CMRglu differences were found between ADHD and neurotypical adolescents overall.

Related Experiment Videos

  • ADHD girls exhibited 15.0% lower global CMRglu than neurotypical girls (p = .04).
  • ADHD girls showed 19.6% lower global CMRglu than ADHD boys (p = .02).

    • Conclusions:

    • Brain metabolism abnormalities in ADHD appear more pronounced in females than males.
    • Further research focusing on girls with ADHD is warranted to understand these gender-specific differences.