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Subtypes of aggression in intermittent explosive disorder
Jennifer R Fanning1, Morgan Coleman1, Royce Lee1
1McLean Hospital, Harvard Medical School, United States.
Journal of Psychiatric Research
|December 15, 2018
Summary
This study explores aggression subtypes in Intermittent Explosive Disorder (IED). Findings reveal distinct patterns of hostile and instrumental aggression in IED patients, impacting anger and impulsivity research.
Area of Science:
- Psychology
- Psychiatry
- Neuroscience
Background:
- Aggression research differentiates between hostile and instrumental subtypes.
- Previous studies focused on healthy and forensic populations, excluding Intermittent Explosive Disorder (IED).
Purpose of the Study:
- To investigate aggression subtypes (hostile vs. instrumental) in individuals with IED.
- To examine the relationship between aggression subtypes and trait anger/impulsivity in IED.
- To assess the utility of the hostile/instrumental dichotomy in capturing aggression heterogeneity in IED.
Main Methods:
- Comparative analysis of aggression subtypes in individuals with IED, healthy controls, and psychiatric controls.
- Correlational analysis between aggression subtypes and measures of trait anger and impulsivity.
Main Results:
- Individuals with IED exhibit unique patterns of hostile and instrumental aggression compared to controls.
- Aggression subtypes in IED are significantly associated with trait anger and impulsivity levels.
- The hostile/instrumental aggression dichotomy partially explains aggression heterogeneity in IED.
Conclusions:
- The findings highlight the specific nature of aggression in IED.
- Understanding aggression subtypes in IED has implications for treatment and neuroscience research.
- Further research is needed to fully elucidate the heterogeneity of aggressive behavior in psychiatric disorders.
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