Food cue reactivity in food addiction: A functional magnetic resonance imaging study

PHYSIOLOGY & BEHAVIOR

卷:208

Article

Schulte, Erica M.¹  Yokum, Sonja³  Jahn, Andrew²  Gearhardt, Ashley N.¹ 

[1] Univ Michigan, Dept Psychol, Ann Arbor, MI 48109 USA

[2] Univ Michigan, Funct MRI Lab, Ann Arbor, MI 48109 USA

[3] Oregon Res Inst, Eugene, OR 97403 USA

关键词: fMRI;    Overweight;    Obesity;    Food addiction;    Addiction;    Eating disorders;   

DOI  :  10.1016/j.physbeh.2019.112574

来源: Elsevier

【 摘 要 】

Background: While neuroimaging studies have revealed that reward dysfunction may similarly contribute to obesity and addiction, no prior studies have examined neural responses in individuals who meet the clinical food addiction phenotype. Methods: Women (n = 44) with overweight and obesity, nearly half of whom (n = 20) met criteria for moderate -to-severe Yale Food Addiction Scale 2.0 (YFAS 2.0) food addiction, participated in a functional magnetic resonance imaging cue reactivity task. Participants viewed images of highly processed foods, minimally processed foods, and household objects while thinking about how much they wanted each item. Differences in neural responses by YFAS 2.0 food addiction to highly processed and minimally processed food cues were investigated. Results: There was a significant interaction between participant group and neural response in the right superior frontal gyrus to highly versus minimally processed food cues (r = 0.57). Individuals with YFAS 2.0 food addiction exhibited modest, elevated responses in the superior frontal gyrus for highly processed food images and more robust, decreased activations for minimally processed food cues, whereas participants in the control group showed the opposite responses in this region. Across all participants, the household items elicited greater activation than the food cues in regions associated with interoceptive awareness and visuospatial attention (e.g., insula, inferior frontal gyrus, inferior parietal lobe). Conclusions: Women with overweight or obesity and YFAS 2.0 food addiction, compared to those with only overweight or obesity, exhibited differential responses to highly and minimally processed food cues in a region previously associated with cue-induced craving in persons with a substance-use disorder. Overall, the present work provides further support for the utility of the food addiction phenotype within overweight and obesity.

【 授权许可】

Free