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Related Experiment Video

Updated: Jul 4, 2026

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
06:42

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Arousal, processing, and risk taking: consequences of intergroup anger.

Robert J Rydell1, Diane M Mackie, Angela T Maitner

  • 1Psychological Sciences, University of Missouri, Columbia, MO 65211, USA. rydellr@missouri.edu

Personality & Social Psychology Bulletin
|July 3, 2008
PubMed
Summary

Intergroup emotions theory (IET) suggests shared emotions within groups. This study reveals group-based anger impacts information processing and risk-taking, even without self-reports.

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Last Updated: Jul 4, 2026

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Area of Science:

  • Social Psychology
  • Group Dynamics
  • Emotion Research

Background:

  • Intergroup emotions theory (IET) links social categorization to shared emotions.
  • Previous research heavily relies on self-reported emotions.
  • Need for objective measures of group-based emotions.

Purpose of the Study:

  • To investigate the non-self-report consequences of group-based anger.
  • To provide objective evidence for IET's predictions.
  • To explore the effects of intergroup anger on information processing and risk-taking.

Main Methods:

  • Three experiments were conducted.
  • Measures included physiological arousal, information processing tasks, and risk-taking assessments.
  • Group identification was also measured.

Main Results:

  • Group-based anger was associated with increased arousal.
  • Anger reduced systematic processing of persuasive messages.
  • Intergroup anger, compared to fear, led to increased risk-taking.
  • Group identification moderated these effects.

Conclusions:

  • Group-based emotions have subtle, consequential effects beyond self-reports.
  • Findings support IET by demonstrating objective impacts of social categorization on emotions and behavior.
  • Objective measures are crucial for understanding intergroup emotions.