Cardiovascular changes during social competition in a mixed-motive game

Area of Science:

• Psychology
• Cardiovascular Physiology
• Behavioral Science

Background:

• Understanding the interplay between psychological factors and physiological responses is crucial for psychosomatic illness research.
• Mixed-motive games provide a controlled environment to study social interactions and their associated autonomic nervous system activity.

Purpose of the Study:

• To investigate sex differences in cardiovascular responses during a mixed-motive game.
• To explore the relationship between individual behavioral traits (competitiveness, Type A behavior, action orientation) and physiological responses.
• To assess the utility of a mixed-motive game model for studying psychosocial influences on psychosomatic illnesses.

Main Methods:

• Male and female participants engaged in a mixed-motive game against a confederate employing either a 20% or 80% cooperative strategy.
• Computerized monitoring of cardiovascular responses, specifically heart rate, was conducted throughout the game.
• Participants completed scales measuring competitiveness, coronary-prone (Type A) behavior, and action orientation.

Main Results:

• Females exhibited larger heart rate responses than males when playing against a competitive strategy.
• Males showed greater heart rate responses than females when playing against a cooperative strategy.
• Higher competitiveness, Type A behavior scores, and action orientation were associated with larger heart rate responses during gameplay.

Conclusions:

• Covert autonomic responses, such as heart rate changes, are important for understanding overt behavioral choices in social interactions.
• The mixed-motive game paradigm serves as a valuable model for examining the role of psychosocial factors in the development of psychosomatic disorders.
• Individual differences in behavioral predispositions significantly influence physiological reactions in social-evaluative contexts.