Neural Basis of Meal Related Interoceptive Dysfunction in Anorexia Nervosa

• Status: Recruiting
• Trial end date: 2027-12-01
• Target enrollment: 0
• Participant gender: All

Summary

This study aims to identify the brain regions responsible for encoding cardiorespiratory 'interoceptive' sensations and determine whether they are dysfunctional in individuals affected by eating disorders, anxiety, depression, or brain injury. By evaluating the same interoceptive sensations across different human illnesses, the investigators hope to provide convergent evidence resulting in identification of core underlying neural processes, and to discern relative contributions in each condition.

• Phase: N/A
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Laureate Institute for Brain Research, Inc.
• Collaborator: National Institute of Mental Health (NIMH)
• Treatments: Isoproterenol

Criteria

Inclusion Criteria:

• Diagnostic and Statistical Manual 5 (DSM 5) criteria for anorexia nervosa and age 18 to 40, or generalized anxiety disorder, or panic disorder, or major depressive disorder, or brain injury caused either by herpes simplex encephalitis or Urbach-Wiethe disease.

Exclusion Criteria:

• DSM 5 diagnosis with any of the following: Schizophrenia spectrum and other psychotic disorders, bipolar and related disorders, antisocial personality disorder, active suicidal ideation with intent or plan

• Current cardiac arrhythmia

• Current respiratory disease

• Seizure disorder

• MRI contraindications including: cardiac pacemaker, metal fragments in eyes/skin/body (shrapnel), aortic/aneurysm clips, prosthesis, by-pass surgery/coronary artery clips, hearing aid, heart valve replacement, shunt (ventricular or spinal), electrodes, metal plates/pins/screws/ wires, or neuro/bio-stimulators (TENS unit), persons who have ever been a professional metal worker/welder, history of eye surgery/eyes washed out because of metal, vision problems uncorrectable with lenses, inability to lie still on one's back for 60-120 minutes; prior neurosurgery; tattoos or cosmetic makeup with metal dyes, unwillingness to remove body piercings, and pregnancy.