Hazardous gambling behavior is associated with amplified emotional reactivity to gambling outcomes

Cholewick, Antonia and Bennett, Daniel (2025) Hazardous gambling behavior is associated with amplified emotional reactivity to gambling outcomes. JOURNAL OF BEHAVIORAL ADDICTIONS, 14 (1). pp. 480-489. ISSN 2062-5871

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Abstract

Background and aims Emotion dysregulation has been suggested to play a role in gambling-related harm, but past gambling research has typically assessed emotion dysregulation via self-report surveys rather than in a gambling context. Here, we sought to investigate how the severity of participants' hazardous gambling behavior was associated with their emotional reactivity and choice behavior within a simulated slot-machine task. Methods Participants (N = 100) recruited via Prolific completed a behavioral task involving repeated choices between two simulated slot-machines. When chosen, slot-machines could produce one of five outcome types (win/near-win/neutral/near-loss/loss). After each outcome, participants reported their subjective emotional valence. Emotion data were analysed using a beta-autoregressive computational model, allowing us to extract per-participant estimates of trial-by-trial emotional reactivity to different slot-machine outcomes. Results Correlation analyses revealed that people who engaged in more hazardous gambling behavior (higher PGSI scores) showed greater emotional reactivity to all slot-machine outcome types (all Spearman ρ > |0.31|, all p < 0.01, corrected for multiple comparisons). There were no significant associations between patterns of choice behavior and PGSI scores. Discussion and conclusions Within a simulated slot-machine task, individuals who engaged in more hazardous gambling behavior showed greater emotional reactivity in general (more positive emotional reactions to wins and more negative emotional reactions to unpleasant events such as losses and near-wins). These results are consistent with a model in which emotion dysregulation is a risk factor for gambling-related harm, and serve to validate this model in a more naturalistic setting.

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