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Related Experiment Video

Updated: Jul 29, 2025

The Joint Effect of Social Comparison and Social Distance on Evaluation of Intertemporal Choice Outcomes in Event-related Potential Studies
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Shallow Value Weighting Predicts Problem Gambling: A Parameter Estimation Analysis Using Cumulative Prospect Theory.

E T Curtis1, J L Curtis2

  • 1Booth University College, 447 Webb Place, Winnipeg, MB, R3B 2P2, Canada. evan.curtis@boothuc.ca.

Journal of Gambling Studies
|May 24, 2023
PubMed
Summary
This summary is machine-generated.

Problem gambling involves distorted subjective valuation, where individuals may overvalue potential gains and undervalue losses. This behavioral economics model offers new insights into addictive gambling behaviors.

Keywords:
Behavioural economicsDecision makingGamblingProblem gambling

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Area of Science:

  • Behavioral Economics
  • Neuroscience
  • Clinical Psychology

Background:

  • Problem gambling is a severe non-substance-based addictive disorder.
  • Limited research exists from formal behavioral economics models on gambling.
  • Cognitive distortions are implicated in problem gambling.

Purpose of the Study:

  • To formally analyze cognitive distortions in problem gambling using Cumulative Prospect Theory (CPT).
  • To investigate the relationship between CPT parameters and gambling severity.

Main Methods:

  • Two experiments were conducted involving participants making decisions between gambles.
  • Participants completed a standard gambling assessment.
  • CPT parameters were estimated for each participant to predict gambling severity.

Main Results:

  • Severe gambling was linked to a shallow valuation curve and reversed loss aversion in Experiment 1.
  • Experiment 2 replicated the shallow valuation effect but not reversed loss aversion.
  • Neither experiment showed differences in probability weighting, but increased decision noise was observed in Experiment 1.

Conclusions:

  • Problem gambling is partly characterized by fundamental distortions in subjective valuation.
  • CPT provides a valuable framework for understanding cognitive biases in addictive behaviors.
  • Further research is needed to fully elucidate the economic and psychological underpinnings of problem gambling.