Taylor Stalnaker | 2026 I.S. Symposium
狈补尘别:听Taylor Stalnaker
Title: Not Your Typical Card Reading: An Individualized Model of Decision-Making in the Iowa Gambling Task
Majors: Psychology; Mathematics
Advisors: Nathan Foster and Robert Kelvey
Individual differences, such as personality, trait anxiety, ADHD-like symptomology, and mood, have shown individual relationships with performance on the Iowa Gambling Task (IGT). However, there is much conflict present in the literature regarding the nature of these relationships, and the literature focuses on overall performance rather than performance over time. The current study investigated how these individual differences all work together to predict specific choices as trials progress. To accomplish this, a modified Exploitation and Exploration with forgetting (EEF) model with the parameters forgetting, gain sensitivity, loss sensitivity, exploring, and consistency was implemented. Individual differences were fitted to parameters to predict individual choices. Ultimately, individual differences, through forgetting, gain sensitivity, loss sensitivity, and consistency, were able to predict individual choices with around 50% accuracy. From these results, it can be discerned that higher extraversion, agreeableness, conscientiousness, ADHD-like symptomology, and negative mood leave a person more susceptible to risky choices and higher openness and positive mood leave a person less susceptible to risky choices. Riskier choices may be related to an increased predisposition to addictive behaviors; thus, these individual differences may relate to predispositions to conditions such as substance abuse disorder and gambling disorder.
Posted in Symposium 2026 on May 1, 2026.
