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Master Thesis

Body image evaluation in adolescents with anorexia nervosa: retrospective study

Abstract : Objective: assessment of the symptoms of body image disorder (BID) is crucial in anorexia nervosa (AN). Recent technological advancements such as Virtual Reality (VR) have added new dimensions to our assessment capabilities. This retrospective study examines the hypothesis that the immersive conditions created by VR, and the enhanced visual perceptions offered by 3D avatars would modify body image evaluation by adolescents with AN, compared to the paper-based figure rating scales (FRS). Method: Data of 31 female adolescents with AN were retrospectively studied. Paired data of perceived and desired body forms obtained by VR and FRS were compared in terms of Body Perception Index (BPI) and body dissatisfaction, and correlation with validated psychometric questionnaires. Head-tracking technology allowed for the implicit measurement of explicit choices of patients. Results: Participants with AN overestimated own body size regardless of the assessment tool used. BPI and body dissatisfaction did not differ significantly between FRS and VR. VR-based evaluation was correlated with the psychometric parameters BID and body dissatisfaction. Head tracking revealed significantly longer participant engagement with avatars representing malnutrition and underweight states, while those least engaged corresponded to obesity. Discussion: Results of BID evaluation by VR standardized 3D avatars, are comparable to those obtained by paper-based FRS. These findings suggest that comparable results obtained by both tools of evaluation reflect primarily the role of affective-cognitive perturbation in BID. The perceptive component could be better evaluated by using biometric-enhanced assessment tools.
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https://dumas.ccsd.cnrs.fr/dumas-02417972
Contributor : Faculté de Médecine Amu <>
Submitted on : Wednesday, December 18, 2019 - 2:36:54 PM
Last modification on : Friday, October 23, 2020 - 4:46:30 PM
Long-term archiving on: : Thursday, March 19, 2020 - 6:55:48 PM

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Sheldon Fisher. Body image evaluation in adolescents with anorexia nervosa: retrospective study. Life Sciences [q-bio]. 2018. ⟨dumas-02417972⟩

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