Heterogeneity in choices on Iowa Gambling Task: preference for infrequent–high magnitude punishment

Reward attribute, i.e. long-term versus short-term reward, is the most commonly analyzed choice attribute in Iowa Gambling Task (IGT). The present study (n = 45) employs measures of individual differences to explore preferences in IGT choices, based on punishment attribute (frequent versus infrequent punishment) along with the reward attribute. Three questionnaires (rational-experiential information processing style, risk attitude, and maximization regret behavior) were employed to analyze whether preferences were based on reward or on punishment attribute of the IGT choices. The T test indicated a selective preference for punishment, but not for reward attribute. Pearson’s correlation revealed that rational information processing is associated with more choices from infrequent–large punishment decks. Regression analysis indicated that rational information processing, tendency to maximize-experience regret, and risk attitude accounted for selective preferences based on the punishment attribute. Measures employed were unrelated to reward attribute of the IGT choices. Results are explained in terms of choice preference for frequent but smaller magnitude versus infrequent but larger magnitude punishment in IGT.