Inclusion Criteria:

• * BMI 40-60 kg/m2
• * Failure of at least one weight loss medication
• * Previous Gastric Bypass Surgery lead to less than 50% of excess weight lost by 2 years after surgery
• * Significant Loss of Control over eating
• * Subject is able to attend all scheduled clinic appointments on their own or with a caregiver.
• * Premenopausal women must agree to use acceptable methods of birth control.
• * Participants provide voluntary, decisionally capable, and appropriately informed consent.
• * Subject is able to comply w/ all testing and follow-up requirements defined by the study protocol.
• * Participant has no immediate plan for relocation beyond 6 hours of the study site.
• * Proficiency with the English language.

Exclusion Criteria:

• * Subject has an implanted medical device that delivers electrical energy to the brain.
• * Subject has an implantable cardiac pacemaker, defibrillator, or neurostimulator.
• * Subject is likely to require repeat MR imaging after implant of the RNS Neurostimulator and Leads.
• * Subject is unable to fit into CT scanner (500lb upper weight limit for CT scanner).
• * Inability to provide informed consent to treatment.