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Related Concept Videos

Attention-Deficit/Hyperactivity Disorder01:30

Attention-Deficit/Hyperactivity Disorder

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To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.
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The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients
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ADHD symptoms and maturity--a study in primary school children.

P Gustafsson1, G Thernlund, J Besjakov

  • 1Department of Child and Adolescent Psychiatry, Lund University, Lund, Sweden. Peik.Gustafsson@med.lu.se

Acta Paediatrica (Oslo, Norway : 1992)
|January 8, 2008
PubMed
Summary

Biological maturity does not correlate with attention deficit hyperactivity disorder (ADHD) symptoms in children. This study found no link between physical development and ADHD, challenging theories of biological immaturity as a cause.

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Event Related Potentials (ERPs) and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder (ADHD)
10:02

Event Related Potentials (ERPs) and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder (ADHD)

Published on: March 12, 2020

Area of Science:

  • Developmental Psychology
  • Pediatrics
  • Child Psychiatry

Background:

  • Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder.
  • The etiology of ADHD is complex, with genetic and environmental factors implicated.
  • The role of biological maturity as a potential factor in ADHD symptomatology requires further investigation.

Purpose of the Study:

  • To investigate the association between age and non-behavioral measures of biological maturity with attention deficit hyperactivity disorder (ADHD).
  • To determine if general biological immaturity is an etiologic factor in ADHD.

Main Methods:

  • Screened 251 children aged 7-9 years in a Swedish school for ADHD symptoms.
  • Assessed ADHD symptoms using the Conners Abbreviated Questionnaire (parent and teacher reports).
  • Measured motor function, body weight, height, and estimated skeletal age via hand radiographs.

Main Results:

  • Height, weight, and skeletal age correlated significantly with chronological age but not with ADHD symptom scores.
  • Motor dysfunction showed a weak negative correlation with age.
  • ADHD symptoms, as reported by parents and teachers, did not correlate with age or measures of biological maturity.

Conclusions:

  • General biological maturity measures were strongly associated with age, but not with ADHD symptoms.
  • Motor dysfunction and ADHD symptoms were not significantly associated with age.
  • The findings do not support the hypothesis that general biological immaturity is a significant etiologic factor for ADHD.