I see what I eat and I eat what I see...? : Operationalisierung und Konzeptualisierung des Cue-induzierten Food Cravings im Kontext von Normalgewicht und insbesondere Adipositas mit Binge Eating Disorder
This thesis presents a concept on food craving, particularly its situational components, based on two experimental empirical studies. This is then used to expand on Jansen’s conditional binge eating model (1998). Thus, cue-induced craving extends the construct of state food craving and trait food craving (Cepeda-Benito et al., 2000). Based on the cue-reactivity model (Wardle 1990) and the conditioned incentive model (Havermans, 2013), a new cue-reactivity paradigm is presented, applied and conducted in two studies. The first study has important implications for the elicitation and definition of food craving. The study examined mood-related food craving in healthy women in both hungry and sated states, and found that perceived hunger leads to a general increase in food craving, and that specificity for sweet high fat and high sugar foods (HFHS) is preferably measured in a sated state. The second study involved people with obesity with and without binge eating disorder (BED). The results of this study show that state, trait, and cue-induced craving are significantly higher in people who regularly show disinhibited eating behaviors. These results provide evidence that people with obesity and BED can be described as more cue-reactive to HFHS foods and, therefore, more susceptible to everyday triggers for binge eating in the context of an obesogenic environment. In conclusion, this thesis proposes an integrative model, which supports the treatment strategy of confrontation with response prevention for patients with obesity and comorbid binge eating disorder.
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