Journal of Abnormal Child Psychology

, Volume 24, Issue 1, pp 19–36

Inhibition in ADHD, aggressive, and anxious children: A biologically based model of child psychopathology

  • Jaap Oosterlaan
  • Joseph A. Sergeant

DOI: 10.1007/BF01448371

Cite this article as:
Oosterlaan, J. & Sergeant, J.A. J Abnorm Child Psychol (1996) 24: 19. doi:10.1007/BF01448371


In this study the stop signal task was employed to investigate inhibitory control in 15 children with attention deficit hyperactivity disorder (ADHD), 18 aggressive and 20 anxious children, and a group of 17 normal controls. The psychopathological groups were recruited from special educational services. Parent, teacher, and child questionnaires were used to select children with pervasive disorders. Controls attended regular classes and scored low on all questionnaires. Based on Quay's model of child psychopathology (Quay, 1988, 1993), we hypothesized a deficit in inhibitory control in children with externalizing disorders, whereas anxious children were predicted to be overinhibited. The ADHD group and the aggressive group showed poor inhibitory control and a slower inhibitory process. No evidence of overinhibition was found in anxious children.

Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • Jaap Oosterlaan
    • 1
  • Joseph A. Sergeant
    • 1
  1. 1.Department of Clinical PsychologyUniversity of AmsterdamAmsterdamThe Netherlands

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