Neurobiological and Psychological Maintenance Mechanisms Associated With Anticipatory Reward in Bulimia Nervosa

Who May Qualify: Bulimia nervosa (BN) and healthy control (HC) groups: - Right-handed - Ability to read and speak in English BN group only: - Eating Disorder Examination (EDE) diagnosis of BN (i.e., at least one objective bulimic episode and one self-induced vomiting episode per week for at three months) with binge episodes always accompanied by self-induced vomiting - Stable dose for at least 6 weeks of any recent changes in medication impacting mood, appetite, or weight HC group only: - No binge eating or purging episodes for the past three months on the EDE - No current or past history of an eating disorder as diagnosed by Structured Clinical Interview for DSM-5 Disorders Who Should NOT Join This Trial: - History of gastric bypass surgery - Medical condition acutely affecting eating behavior and/or weight (i.e., pregnancy, lactation, thyroid disease) - Current medical or psychiatric instability (i.e., hospitalization required in the past three months) - Lifetime history of psychosis or bipolar disorder - History of neurological disorder or injury (i.e., stoke, head injury with \>10 minutes loss of consciousness) - Current substance use disorder - BMI less than 19 kg/m\^2 - Acute suicidality requiring hospitalization - fMRI exclusions as specifiedd by the Center for Magnetic Resonance Research - Food allergy that cannot be accommodated through substitutions to the laboratory test snack Always talk to your doctor about whether this trial is right for you.