Interoceptive Mechanisms of Body Image Disturbance in Anorexia Nervosa

Inclusion Criteria: 1. Primary diagnosis of anorexia nervosa 2. Photographic Figure Rating Scale (PFRS) body dissatisfaction score greater than or equal to 1 3. Eating Disorder Examination Questionnaire (EDE-Q6) Shape Concern Subscale score greater than or equal to 3 4. Weight restored to body mass index (BMI) greater than or equal to 17.5 5. No current evidence of orthostatic hypotension or if there is no evidence of additional fall risk as determined by their provider 6. Clinical status transition from acute to residential status 7. No new psychiatric medications in the week prior to randomization 8. Female sex assigned at birth 9. Ages 13 to 50 years 10. Independently ambulatory 11. Ability to lay flat comfortably 12. English proficiency 13. Willingness and ability to participate in study procedures 14. Provision of informed consent (parent consent and minor assent if less than 18 years of age). Exclusion Criteria: 1. Active suicidal ideation with plan and intent 2. Active cutting or skin lacerating behaviors 3. Pregnancy as defined by urine screening 4. Acute intoxication as indicated by urine drug screen or breathalyzer 5. Orthostatic hypotension as determined by medical provider, evidenced in chart (defined as a drop of ≥ 20 mmHg in systolic blood pressure (BP) or a drop of ≥ 10 mm Hg in diastolic blood pressure (BP) when measured shortly after transitioning from lying down to standing). If evidence of orthostasis is present in chart consultation with provider to determine if status creates additional fall risk. If participant is determined to be at increased fall risk (e.g., dizziness upon standing) they will be excluded. 6. Seizure reported within the previous 12 months 7. Co-morbid diagnoses of Diagnostic and Statistical Manual of Mental Disorders, 5th ed. (DSM-5) bipolar disorder, schizophrenia, or other psychosis spectrum disorder 8. Systolic blood pressure \> 160 mmHg 9. Diastolic blood pressure \>100 mmHg 10. Resting heart rate \<50 beats per minute.