Doctoral thesis

Coming to terms with risk-factors for obesity and eating disorders in childhood and early adulthood : a contribution to the bio-psycho-social etiology model of pathological eating behavior


1 ressource en ligne (159 p.)

Thèse de doctorat: Université de Fribourg, 2016

English This thesis incorporates three studies addressing different bio-psycho-social correlates of eating pathology. Each of the presented publications is reflecting a new development in the corresponding research field, as it employs novel methodological approaches and provides enhancements to the already existing etiological models. In the Publication 1, psychosocial factors such as familial role modeling and social network were investigated on the background of peer selection using an immersive virtual reality environment. School-aged children were confronted with normal weight and overweight avatars that were either eating or playing. As a main result, parental BMI was the strongest predictor for the children’s minimal distance to the avatars. In the Publication 2, body dissatisfaction (BD), emotion dysregulation, and a specific type of food-related cognitive distortion (Thought-Shape Fusion, TSF) were integrated in a model of disturbed eating and compensatory behavior (DECB). Using cross-sectional data from an online-survey, the model was tested on a subpopulation of healthy young male university students. The results of this study indicated the susceptibility to body-related cognitive distortions (TSF) as a potential mediator in the relationship between BD and disturbed eating in men. In the study presented in the Publication 3, impulsivity impairments occurring within clinical symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD) and Binge Eating Disorder (BED) as well as the two nonverbal self-control strategies, attentional deployment and self-touch movement were examined as psychological factors affecting the ability to delay food-related gratification (DOG). The findings suggest that besides attentional deployment, the left-handed self-touch constitutes an effective strategy that might enhance the ability to resist snacking during the DOG.
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  • English
  • Ressource en ligne consultée le 08.06.2016
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