Pilot randomized trial demonstrating reversal of obesity-related abnormalities in reward system responsivity to food cues with a behavioral intervention

 

PUBLICATION
Nutrition & Diabetes

AUTHOR(S)
T Deckersbach, S K Das, L E Urban, T Salinardi, P Batra, A M Rodman, A R Arulpragasam, D D Dougherty and S B Roberts

ABSTRACT
Objectives: Obesity is associated with hyperactivation of the reward system for high-calorie (HC) versus low-calorie (LC) food cues, which encourages unhealthy food selection and overeating. However, the extent to which this hyperactivation can be reversed is uncertain, and to date there has been no demonstration of changes by behavioral intervention.
Subjects and methods: We used functional magnetic resonance imaging to measure changes in activation of the striatum for food images at baseline and 6 months in a pilot study of 13 overweight or obese adults randomized to a control group or a novel weight-loss intervention.
Results: Compared to controls, intervention participants achieved significant weight loss (−6.3±1.0 kg versus +2.1±1.1 kg, P<0.001) and had increased activation for LC food images with a composition consistent with that recommended in the behavioral intervention at 6 months versus baseline in the right ventral putamen (P=0.04), decreased activation for HC images of typically consumed foods in the left dorsal putamen (P=0.01). There was also a large significant shift in relative activation favoring LC versus HC foods in both regions (P<0.04).
Conclusions: This study provides the first demonstration of a positive shift in activation of the reward system toward healthy versus unhealthy food cues in a behavioral intervention, suggesting new avenues to enhance behavioral treatments of obesity.

DATE
September 2014

RELATED TOPICS
COGNITIVE IMPAIRMENT, DEMENTIA RISK, ALZHEIMER DISEASE, DIET, WEIGHT LOSS, HUNGER REDUCTION, EATING BEHAVIOR, PORTION-CONTROL, GLYCEMIC INDEX, HIGH CALORIE, LOW CALORIE, FOOD, REWARD SYSTEM

 

VIEW STUDY

Join the Four Winds Society!

  • Access Information in Our Free Library
  • Study Energy Medicine Practices
  • Learn about Shamanic Healing
  • Achieve Energy Medicine Certification
  • Journey to the Amazon and Sacred Sites
  • Receive Our Monthly Newsletter