Scientists scan brains to uncover why eating disorders drive avoidance
NCT ID NCT06566612
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study uses brain scans (fMRI) and computer tasks to understand how women with anorexia or bulimia nervosa learn to avoid certain situations. Researchers will compare brain activity in 78 women—26 with anorexia, 26 with bulimia, and 26 healthy controls—to see if avoidance learning differs. The goal is to uncover brain patterns linked to these eating disorders, which could guide future treatments.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could reveal how the brain processes avoidance in eating disorders, pointing toward new psychological or brain-based treatments.
- What could go wrong
- This is an observational brain-imaging study, not a treatment trial. It is small (78 participants) and early-stage, so findings may not apply broadly or lead directly to therapies.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 78 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2024
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
The study will recruit 52 adult women currently ill with an eating disorder, including anorexia nervosa (AN; n=26) and bulimia nervosa (BN, n=26), and 26 healthy control (HC) women between the ages of 18 and 39.
- Ages
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18 to 39 years
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Eating Disorder Group: * Between the ages of 18 and 39 years old * Meet DSM-V criteria for anorexia nervosa or bulimia nervosa Healthy Controls: * Between the ages of 18 and 39 years old * Have maintained 85% to 120% ideal body weight since menarche Exclusion Criteria: * Psychotic illness/other mental illness requiring hospitalization * Current dependence on drugs or alcohol defined by DSM IV criteria. Additionally, positive test results for drug use on the day of the scan, apart of marijuana, will result in cancelling or rescheduling the scan because acute use will impact MRI measures. * Physical conditions (e.g. diabetes mellitus, pregnancy) known to influence eating or weight * Neurological disorder, neurodevelopmental disorder, or history of head injury with \>30 min loss of consciousness * Any contraindication to undergoing an MRI * Primary obsessive compulsive disorder or primary major depressive disorder Additional Exclusion Criteria for ED Group: * If taking other psychotropic medication, any change in dosage in the 2 weeks before scanning Additional Exclusion Criteria for Healthy Control Group: * Meet criteria for the diagnosis of any psychiatric disorder currently * Any history of binge eating or purging behaviors, including self-induced vomiting, laxative or diuretic misuse * Use of any psychoactive or other medication known to affect mood or concentration in the last 3 months
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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UCSD Eating Disorders Treatment and Research Program
RECRUITINGLa Jolla, California, 92121, United States
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Other studies related to the condition(s) this trial covers.
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- Could the gut microbiome hold clues to eating disorder recovery?
- Can video therapy match In-Person care for bulimia?
- Can a parent support group help teens with both autism and anorexia?