Inclusion Criteria:  Ability to provide informed consent for this study. Signed informed consent. Diagnosis of Idiopathic Parkinsons disease with motor symptoms that have been present for a minimum of 4 years. Motor symptoms (e.g., motor fluctuations, dyskinesia, tremor, bradykinesia, rigidity) that are severe enough, despite optimized medical therapy, to warrant surgical implantation of DBS, according to standard clinical criteria. UPDRS-III score off medication between 20 and 80, and an improvement in UPDRS-III score on medications of at least 30%, or patients with tremor-dominant PD (score >/= 2 on UPDRS-III tremor sub-score) or tremor in addition to other motor symptoms that are treatment-resistant and result in significant functional disability. Appropriate trials of oral PD medications have resulted in inadequate relief of motor symptoms as determined by a movement disorders neurologist, and anti-PD medications have been at stable doses for 30 days prior to study enrollment. Patient has requested DBS surgery, and has been approved by the site (UNMC or University of Pennsylvania) Multi-Disciplinary Movement Disorders Patient Care Conference for STN DBS Absence of abnormalities on brain MRI suggestive of an alternate diagnosis or serving as a contraindication to surgery. Absence of significant cognitive deficits or significant depression (BDI-II score > 20) on formal Neuropsychological Testing. Age 18 to 80 years (19 years for Nebraska) Ability to conduct follow up neurological care exclusively at the study site for the duration of the RC+S INS lifespan (9 years).  Exclusion Criteria:  Coagulopathy, anticoagulant medications that cannot be discontinued safely for perioperative period, uncontrolled hypertension, history of seizures, heart disease, inability to undergo general anesthesia, or other medical conditions considered to place the patient at elevated risk for surgical complications. Pregnancy: All women of child-bearing age will have a negative urine pregnancy test prior to undergoing surgical procedures. Significant untreated depression (BDI-II score > 20 or GDS score > 8). Personality or mood disorder symptoms that Study Personnel believe will interfere with study requirements Patients requiring ongoing treatment with ECT, rTMS, or diathermy. Pre-existing implanted stimulation system (e.g., cochlear implant, cardiac pacemaker, defibrillator, neuro-stimulator for indication other than Parkinsons disease) or ferromagnetic metallic implant. Prior intracranial surgery. History of, or active, drug or alcohol abuse. Meets criteria for PD with Mild Cognitive Impairment (PD-MCI), as defined by Performance > 2 standard deviations below appropriate norms on tests from 2 or more of the following cognitive domains: Attention, Executive Function, Language, Memory, and Visuospatial Ability. Patients with Restless Leg Syndrome. Patients with Obstructive Sleep Apnea. Inability to perform the recharge process necessary for use of the RC+S system.