Binge Eating Disorder and Obesity : Functional MRI Study

Obesity, defined as BMI\> 30kg / m2, is a major public health problem, with devastating medical and psychological consequences. 30% of obese suffer from BED type of eating disorders. The optimal treatment of obesity remains bariatric surgery, failed in 20% of cases. Many arguments are in favor of the involvement of the reward circuitry, with the central role of NAc in the pathophysiology of BED and obesity. The recent application and effectiveness of DBS (Deep Brain Stimulation) in refractory psychiatric disorders suggest that DBS may be of interest in treating obesity and BED with potential target for the NAc. This project propose to study fMRI activation of the reward system in response to food stimuli to better direct the DBS targets. This is a pilot study to define indication criteria based on fMRI to obese BED patients are potential candidates for treatment with DBS.