Brain Responses to Food Logos in Obese and Healthy Weight Children

Department of Psychology, University of Missouri-Kansas City, Kansas City, MO. Electronic address: .
The Journal of pediatrics (Impact Factor: 3.74). 12/2012; 162(4). DOI: 10.1016/j.jpeds.2012.10.003
Source: PubMed

ABSTRACT OBJECTIVE: To evaluate brain activation in response to common food and nonfood logos in healthy weight and obese children. STUDY DESIGN: Ten healthy weight children (mean body mass index in the 50th percentile) and 10 obese children (mean body mass index in the 97.9th percentile) completed self-report measures of self-control. They then underwent functional magnetic resonance imaging while viewing food and nonfood logos. RESULTS: Compared with the healthy weight children, obese children showed significantly less brain activation to food logos in the bilateral middle/inferior prefrontal cortex, an area involved in cognitive control. CONCLUSION: When shown food logos, obese children showed significantly less brain activation than the healthy weight children in regions associated with cognitive control. This provides initial neuroimaging evidence that obese children may be more vulnerable to the effects of food advertising.

1 Follower
  • [Show abstract] [Hide abstract]
    ABSTRACT: Objective Adolescents view thousands of food commercials annually, but little is known about how individual differences in neural response to food commercials relate to weight gain. To add to our understanding of individual risk factors for unhealthy weight gain and environmental contributions to the obesity epidemic, we tested the associations between reward region (striatum and orbitofrontal cortex [OFC]) responsivity to food commercials and future change in body mass index (BMI).Methods Adolescents (N = 30) underwent a scan session at baseline while watching a television show edited to include 20 food commercials and 20 nonfood commercials. BMI was measured at baseline and 1-year follow-up.ResultsActivation in the striatum, but not OFC, in response to food commercials relative to nonfood commercials and in response to food commercials relative to the television show was positively associated with change in BMI over 1-year follow-up. Baseline BMI did not moderate these effects.Conclusions The results suggest that there are individual differences in neural susceptibility to food advertising. These findings highlight a potential mechanism for the impact of food marketing on adolescent obesity.
    Obesity 08/2014; DOI:10.1002/oby.20882 · 4.39 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: In the U.S., an astonishing 12.5 million children and adolescents are now obese, predisposing 17% of our nation's youth to metabolic complications of obesity, such as type 2 diabetes (T2D). Adolescent obesity has tripled over the last three decades in the setting of food advertising directed at children. Obese adults exhibit increased brain responses to food images in motivation-reward pathways. These neural alterations may be attributed to obesity-related metabolic changes, which promote food craving and high-calorie food (HCF) consumption. It is not known whether these metabolic changes affect neural responses in the adolescent brain during a crucial period for establishing healthy eating behaviors.
    Diabetes Care 08/2014; 37(11). DOI:10.2337/dc14-0525 · 8.57 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Evaluate a selective obesity prevention program promoting use of cognitive reappraisals to reduce reward region response and increase inhibitory region response to high-fat/high-sugar foods and reduce intake of fat and sugar to prevent blunted reward region response to intake of such foods.Subjects/Methods Young adults at risk for future weight gain by virtue of weight concerns (N = 148) were randomized to this new prevention program (Minding Health), an alternative prevention program promoting participant-driven gradual reductions in caloric intake and increases in physical activity (Healthy Weight), or an obesity education video control condition, completing assessments at pre-, post-, and 6-month follow-up. A subset of Minding Health and control participants completed an fMRI scan at pre- and post-assessing neural response to images of high-fat/sugar foods and to receipt and anticipated receipt of a high-fat/sugar food.ResultsMinding Health participants showed significantly greater reductions in body fat than controls and caloric intake from fat and sugar than Healthy Weight participants. Minding Health participants also showed greater activation of an inhibitory control region and reduced activation of an attention/expectation region in response to palatable food images relative to pretest and controls. However, Healthy Weight participants showed greater reductions in BMI and eating disorder symptoms than Minding Health participants.Conclusions Although the Minding Health intervention produced some of the hypothesized effects, it did not produce lasting reductions in body fat or BMI and showed limited effects on neural responsivity, implying it will be vital to increase the efficacy of this new prevention program.
    Physiology & Behavior 10/2014; DOI:10.1016/j.physbeh.2014.10.022 · 3.03 Impact Factor