Additional Study Information: People with bulimia nervosa engage in risky behaviors more often than people without this disorder. We are researching the neurobiological underpinnings of risky decision-making in bulimia nervosa. As a participant in this study, you would: (1) complete a series of questionnaires and interviews, (2) complete an MRI scan (no radiation), and (3) complete computer tasks. Some procedures are done remotely, and you would come to our lab at the New York State Psychiatric Institute (NYSPI) at Columbia University Irving Medical Center for a half day. We are looking for adults with bulimia nervosa ages 18 and above to participate in this study. You will be compensated up to $172. If you are interested in and eligible for this study, you may receive treatment for bulimia nervosa at no cost at NYSPI. For more information and to see if you qualify, please call the Columbia Center for Eating Disorders at 646-774-8066.