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American Focus > Blog > Tech and Science > Brain Variations Identified in Children With Restrictive Eating Disorders : ScienceAlert
Tech and Science

Brain Variations Identified in Children With Restrictive Eating Disorders : ScienceAlert

Last updated: July 27, 2025 5:50 am
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Brain Variations Identified in Children With Restrictive Eating Disorders : ScienceAlert
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Study Shows Brain Structure Changes in Children with Restrictive Eating Disorders

A recent study has revealed significant changes in brain structure in children with restrictive eating disorders, shedding light on potential causes and treatment options for these conditions.

Conducted by an international team of researchers, the study analyzed magnetic resonance imaging scans of 174 children under the age of 13 diagnosed with early-onset restrictive eating disorder (rEO-ED) and compared them with scans from 116 children without the diagnosis.

The main objective of the study was to identify differences in brain structure among different types of restrictive eating disorders and explore any potential connections with neurological conditions such as obsessive-compulsive disorder (OCD).

The researchers found various differences in brain structure for children with early-onset anorexia nervosa and avoidant/restrictive food intake disorders (ARFID), including a thinner cortex, more cerebrospinal fluid, reduced surface area, and overall brain volume.

While the study could not definitively determine whether these structural brain changes were a cause or a consequence of the disorders, it did reveal a link between cortical thickness changes and body mass index (BMI) in children with early-onset anorexia nervosa.

By comparing scans from external datasets, the researchers also identified similarities in cortical thickness signatures between early-onset anorexia nervosa and OCD, as well as between ARFID and autism.

Interestingly, there was little overlap between anorexia nervosa and autism, or between ARFID and attention deficit hyperactivity disorder, highlighting the unique nature of each condition.

The researchers emphasized the importance of treating early-onset anorexia nervosa and ARFID as distinct disorders while recognizing similarities and differences with other mental health conditions.

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The findings from this study contribute to a better understanding of the relationship between eating behaviors and brain structures, informing the development of potential treatments for restrictive eating disorders, which currently include dietary and psychological interventions like cognitive behavioral therapy (CBT).

Given the complexity of the brain-behavior relationship, future research will focus on gathering data from larger samples of individuals and tracking brain changes over time to further elucidate the mechanisms underlying these disorders.

The study has been published in Nature Mental Health and provides valuable insights into the neurobiological basis of restrictive eating disorders.

Brain disorder scans
The brains of children with eating disorders were compared with healthy controls. (Moreau et al., Nat. Mental Health, 2025)

TAGGED:brainChildrenDisordersEatingidentifiedRestrictiveScienceAlertVariations
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