Decision making under uncertainty and information processing in positive and negative mood states

Area of Science:

• Cognitive Psychology
• Decision Science
• Affective Science

Background:

• Mood states are recognized as influential factors in human cognition.
• Understanding how emotions affect decision-making and information processing is crucial for various fields, including behavioral economics and health psychology.
• Previous research suggests a link between affect and cognition, but specific mechanisms require further elucidation.

Purpose of the Study:

• To investigate the causal relationship between experimentally induced mood states (positive vs. negative) and decision-making under uncertainty.
• To determine the effect of mood induction on information processing styles (systematic vs. heuristic).
• To analyze how different mood states influence choices in financial gain/loss scenarios and health risk problems.

Main Methods:

• A controlled experiment involving 200 university students (Indian Institute of Technology Kharagpur).
• Mood induction through exposure to comedy (positive mood) or tragedy (negative mood) film clips.
• Participants completed a questionnaire assessing choices and justifications for hypothetical financial and health-related scenarios.

Main Results:

• Participants exhibited cautious decision-making in gain and health risk domains, and risky choices in loss domains, irrespective of mood.
• Negative mood induction led to enhanced information processing, characterized by greater fluency, originality, and flexibility compared to positive mood.
• Negative mood facilitated systematic information processing, while positive mood was associated with heuristic processing.

Conclusions:

• Mood states significantly modulate information processing strategies during decision-making under uncertainty.
• Negative moods promote more analytical and flexible thinking, whereas positive moods encourage reliance on mental shortcuts.
• These findings have implications for understanding risk perception and choice behavior in diverse contexts.