Neural correlates of distorted body images in adolescent girls with anorexia nervosa: How is it different from major depressive disorder?

Date

2023-01-01

Author

Karakuş Aydos, Yağmur
Dövencioğlu, Nahide Dicle
Karlı Oğuz, Kader
ÖZDEMİR, PINAR
PEHLİVANTÜRK KIZILKAN, MELİS
Kanbur, Nuray
ÜNAL, DİLEK
NALBANT, KEVSER
Çetin Çuhadaroğlu, Füsun
AKDEMİR, DEVRİM

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Body image disturbance is closely linked to eating disorders including anorexia nervosa (AN). Distorted body image perception, dissatisfaction and preoccupation with weight and shape are often key factors in the development and maintenance of these disorders. Although the pathophysiological mechanism of body image disorder is not yet fully understood, aberrant biological processes may interfere with perceptive, cognitive and emotional aspects of body image. This study focuses on the neurobiological aspects of body image disturbance. The sample consisted of 12 adolescent girls diagnosed with AN, nine girls with major depressive disorder (MDD) and 10 without psychiatric diagnoses (HC, the healthy control group). We applied a block-design task in functional magnetic resonance imaging using participants' original and distorted overweight and underweight images. After imaging, the participants scored the images for resemblance, satisfaction and anxiety levels. The findings of this study demonstrate that overweight images elicited dissatisfaction and increased occipitotemporal activations across all participants. However, no difference was found between the groups. Furthermore, the MDD and HC groups showed increased activations in the prefrontal cortex and insula in response to underweight images compared to their original counterparts, whereas the AN group exhibited increased activations in the parietal cortex, cingulate gyrus and parahippocampal cortex in response to the same stimuli.

Subject Keywords

anorexia nervosa, body image, body image disorder, body image disturbance, functional magnetic resonance imaging, major depressive disorder

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85164741342&origin=inward
https://hdl.handle.net/11511/104716

Collections

Department of Psychology, Article