e LoriCorps Immersive Body Rating Scale and e LoriCorps Mobile Versions: Validation to Assess Body Image Disturbances from Allocentric and Egocentric Perspectives in a Nonclinical Sample of Adolescents

• Published in: Journal of clinical medicine 2022-02, Vol.11 (5)
• Main Authors: Monthuy-Blanc, Johana, Corno, Giulia, Ouellet, Marilou, Touré, Fadel, Bourbeau, Francisca, Rousseau, Michel, Charette, Audrey, Moreau, Nicolas, Roy, Normand, Drapeau, Vicky, Mathieu, Marie-Eve, Bouchard, Stéphane
• Format: Article
• Language: English
• ISSN: 2077-0383; 2077-0383

A growing number of studies have used virtual reality (VR) for the assessment and treatment of body image disturbances (BIDs). This study, conducted in a community sample of adolescents, documents the convergent and discriminant validity between (a) the traditional paper-based Figure Rating Scale (paper-based FRS), (b) the VR-based Body Rating Scale ( LoriCorps-IBRS 1.1), and (c) the mobile app-based Body Rating Scale ( LoriCorps-IBRS 1.1-Mobile). A total of 93 adolescents (14 to 18 years old) participated in the study. Body dissatisfaction and body distortion were assessed through the paper-based FRS, the LoriCorps-IBRS 1.1 and the LoriCorps-IBRS 1.1-Mobile. Eating disorder symptoms, body image avoidance, and social physique anxiety were also measured. Correlation analyses were performed. Overall, the results showed a good and statistically significant convergence between allocentric perspectives as measured by the paper-based FRS, the LoriCorps-IBRS 1.1 and the LoriCorps-IBRS 1.1-Mobile. As expected, the egocentric perspective measured in VR produced different results from the allocentric perspective, and from cognitive-attitudinal-affective dimensions of BIDs, with the exception of body distortion. These differences support the discriminant validity of the egocentric perspective of LoriCorps-IBRS 1.1 and are consistent with emerging evidence, highlighting a difference between experiencing the body from an egocentric (i.e., the body as a subject) and allocentric (i.e., the body as an object) perspective. The egocentric perspective could reflect a perceptual-sensory-affective construction of BIDs, whereas allocentric measures seem to be more related to a cognitive-affective-attitudinal construction of BIDs. Moreover, the results support the validity of the LoriCorps-IBRS 1.1-Mobile with promising perspectives of implementation among young populations.