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Updated: Jun 4, 2026

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Using the Activity-based Anorexia Rodent Model to Study the Neurobiological Basis of Anorexia Nervosa
Published on: October 22, 2015
Brain dysfunction in anorexia nervosa: cause or consequence of under-nutrition?
Phillipa J Hay1, Perminder Sachdev
1School of Medicine, University of Western Sydney, Campbelltown, Australia. p.hay@uws.edu.au
Current Opinion in Psychiatry
|March 2, 2011
Summary
Neuroimaging reveals brain structure changes in anorexia nervosa, potentially explaining cognitive deficits. While some abnormalities may persist, recovery shows improved brain activity and mixed cognitive function.
Area of Science:
- Neuroscience
- Cognitive Science
- Medical Imaging
Background:
- Brain imaging studies link structural changes in anorexia nervosa to cognitive deficits.
- The role of neurobiological vulnerability versus symptom maintenance in anorexia nervosa remains unclear.
Purpose of the Study:
- To explore the neurobiological underpinnings of anorexia nervosa using neuroimaging.
- To investigate whether neurobiological factors predispose individuals to anorexia nervosa or are a consequence of the illness.
Main Methods:
- Review of functional neuro-imaging studies.
- Analysis of cross-sectional and prospective studies on cognitive function and brain activity.
Main Results:
- Neuroimaging suggests potential biological abnormalities predisposing to anorexia nervosa.
- Abnormal functioning observed in multiple brain regions, with some persistence post-recovery.
- Recent studies indicate improved brain activity and varied neurocognitive recovery.
Conclusions:
- Neuroimaging and cognitive neuroscience advances aid in understanding anorexia nervosa neurobiology.
- Further research is required to differentiate between starvation effects and a potential anorexia nervosa endophenotype.
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