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Related Experiment Videos

Aggression classification and treatment response

R P Malone1, D S Bennett, J F Luebbert

  • 1Department of Psychiatry, Eastern Pennsylvania Psychiatric Institute, Philadelphia 19129, USA.

Psychopharmacology Bulletin
|May 2, 1998
PubMed
Summary

Aggression subtypes in conduct-disordered children predict treatment response. Affective aggression, not predatory, was linked to better outcomes in this preliminary study.

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Area of Science:

  • Child and Adolescent Psychiatry
  • Behavioral Science
  • Neuroscience

Background:

  • Aggression in children with conduct disorder is a significant clinical challenge.
  • Understanding factors influencing treatment response is crucial for effective interventions.
  • The Aggression Questionnaire (AQ) categorizes aggression into subtypes, but their clinical utility requires further investigation.

Purpose of the Study:

  • To investigate the relationship between aggression subtypes, as defined by the Aggression Questionnaire (AQ), and treatment response in aggressive conduct-disordered children.
  • To determine if the Predatory-Affective Index of the AQ can differentiate treatment responders from non-responders.
  • To explore the association between affective and predatory aggression subtypes and outcomes in a pediatric clinical trial.

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Main Methods:

  • A preliminary, double-blind, placebo-controlled study involving 28 aggressive conduct-disordered children (ages 9.8-17.0 years).
  • Classification of aggression subtypes using the Predatory-Affective Index from the Aggression Questionnaire (AQ).
  • Analysis of the association between aggression subtypes and treatment response to lithium or placebo.

Main Results:

  • The Predatory-Affective Index did not differentiate placebo baseline responders from non-responders.
  • The Index significantly differentiated responders and non-responders during the experimental treatment phase, irrespective of treatment group (lithium or placebo).
  • Treatment response was associated with a more affective and less predatory subtype of aggression.

Conclusions:

  • Aggression subtype, specifically a more affective and less predatory pattern, is a significant predictor of treatment response in aggressive conduct-disordered children.
  • This finding suggests that aggression phenotyping may inform treatment selection and outcome prediction in pediatric populations.
  • This is the first study to demonstrate a link between aggression subtypes and treatment response in children.