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Skin conductance, heart rate and aggressive behavior type.

Todd Armstrong1, Jessica Wells2, Danielle L Boisvert3

  • 1School of Criminology and Criminal Justice, University of Nebraska Omaha, 6001 Dodge Street, Omaha NE, 68182, United States.

Biological Psychology
|December 26, 2018
PubMed
Summary

Physiological differences, including skin conductance, correlate with distinct types of aggression (reactive and proactive). These associations, particularly skin conductance responsivity, also differ between males and females, suggesting unique origins for each aggression type.

Keywords:
AggressionAutonomic nervous systemHeart rateProactiveReactiveSkin conductance

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Area of Science:

  • Psychophysiology
  • Forensic Psychology
  • Behavioral Neuroscience

Background:

  • Aggression is a complex behavior with distinct subtypes: reactive and proactive.
  • Understanding the physiological underpinnings of these aggression types is crucial for developing targeted interventions.
  • Previous research suggests potential sex differences in aggression etiology, but physiological links require further investigation.

Purpose of the Study:

  • To investigate the association between physiological measures and aggressive behavior types (reactive and proactive) in a large university student sample.
  • To examine whether these associations differ based on sex.
  • To utilize both raw and residualized aggression scores to differentiate between overlapping aggression constructs.

Main Methods:

  • Participants (N=509 university students) completed the Reactive and Proactive Aggression Questionnaire.
  • Physiological measures included resting and stress-induced skin conductance and heart rate.
  • Statistical analyses examined associations between physiological variables and aggression types, including sex-specific analyses.

Main Results:

  • Resting skin conductance positively correlated with proactive aggression in the overall sample and females.
  • Stress-induced skin conductance positively associated with reactive aggression in the overall sample and males.
  • Skin conductance responsivity showed a negative association with proactive aggression in males.

Conclusions:

  • Distinct physiological patterns are linked to reactive and proactive aggression.
  • These psychophysiological associations appear to be sex-specific, supporting distinct etiologies for different aggression types.
  • Findings underscore the importance of considering both aggression subtype and sex in psychophysiological research on aggression.