PSY3190 Lecture Notes - Lecture 8: Food Addiction, Reward System, Medicalization
23 Sep 2018
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Evidence for fa from animal studies: looking at if foods can have addictive properties the same as substance addictions: neurobiological alternations in rats. A clinical profile of fa: most common reported symptoms/clinical issues = repeated unsuccessful attempts to cut down/restrict food intake (reported in almost all w/obesity). Continued consumption despite adverse consequences (loss of control over beh and compulsive beh suggested by this) E. g. increased emotional dysregulation and harm avoidance: fa assoc w/impulsivity. Tendency to act impulsively in response to neg emotions: higher symptoms of anxiety and depression. Neural correlates of fa: are there similarities between people w/obesity and substance addiction, not as many studies looking at those w/fa and substance addiction. When receiving, showed reduced bold signally in self control related regions: fa symptoms= pos correlated w/increased bold activation in acc, medial ofc and amygdala, once you start engaging in beh, less able to stop it.
