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Social processing and cognition are often altered in patients with eating disorders. The goal of this clinical trial is to assess two different social therapeutic interventions -- one educational, one interactive -- for their effectiveness in improving clinical outcomes in patients with eating disorders. Patients in both interventions will receive education about social function in eating disorders, but those in the interactive treatment group will complete an additional collaborative art task. Participants will: * attend a baseline study visit to complete clinical interviews, cognitive testing, and behavioral tasks * complete a pre-intervention assessment with questionnaires * attend eight sessions of their assigned treatment group over the course of 12 weeks * complete three virtual follow-up assessments 4, 8, and 12 months from their baseline * attend a final study visit to repeat some clinical interviews, cognitive testing, and behavioral tasks Researchers will compare changes in eating disorder, mood, and anxiety symptoms as well as test results from baseline and final study visits for each group to see if * patients can be treated effectively with education alone or if an interactive group component produces additional benefits * cognitive and behavioral task performance are associated with recovery or illness state.
Using a randomized, placebo-controlled, crossover study, this study will evaluate functional magnetic resonance imaging (fMRI) as a pharmacodynamic biomarker of opioid antagonism in adolescents with eating disorders. The hypothesis is that fMRI will be able to detect acute reward pathway modulation by naltrexone (an opioid antagonist) in pre-defined regions of interest (anterior cingulate cortex, nucleus accumbens, dorsolateral prefrontal cortex).