Transcranial direct current stimulation (tDCS) is emerging tool for brain modulation in a variety of clinical conditions. In addition, recent neuroimaging studies suggest that modifying the activity of brain circuits involved in eating behavior could provide therapeutic benefits in obesity.~The investigators aim to assess whether modulation of the dorsolateral prefrontal cortex (DLFPC) using tDCS, modifies behavioral response and brain activity while watching visually presented food cues in obese subjects.~Subjects will receive tDCS two times, one is active stimulation and the other is sham stimulation. Both stimulations will be separated at least one week and the order of sham and active tDCS will be counterbalanced across subjects.~Subjects will perform functional MRI experiments with visual food cues. Questionnaire with behavior measures, body compositions, blood tests will be performed.
The purpose of this study is to investigate the effect of Transcranial Direct Current Stimulation (tDCS) on appetite control related brain regions.