Fig. 1.

Diagram of the Novelty Task. The Novelty Task is a three-armed bandit task where: A) Three stimuli are presented at the beginning of each trial. B) Participant chooses one of the three stimuli. C) Participant receives feedback ($0-$0.30) based on the stimulus chosen on that trial. D) Intertrial interval between trials. E) Proportion of Novel, Best Non-Novel, and Worst Non-Novel stimuli chosen as a function of number of trials since a new novel stimulus is presented. Participants chose the novel stimulus most often on the second trial after a novel stimulus is presented.