Inclusion Criteria:

• idiopathic PD with motor fluctuations of at least 3-4 hours daily., Subject on levodopa, subject is ambulatory, maintain regular med schedule, willing and able to abstain from new PD treatments, Able to demonstrate correct completion of PD diaries, non-demented, adequate contraceptive measures, capable of giving full written consent.

Exclusion Criteria:

• any factors that will prevent subject from completing full course of therapy with the resonator, any factors preventing subject from attending clinic in the "off" state, atypical parkinsonism, no active brain tumors, strokes, hydrocephalus, any other neurologic or non-neurologic disorder which might affect the symptomatic expression of pts. parkinsonism, suffers from chronic pain, no meds that may produce parkinsonism, no psychiatric disturbance, Epilepsy, HIV, Cancer, History of ECT, Diabetic Neuropathy, Uncontrolled HTN, Advanced Pulmonary Disease, Known heart conditions such as cardiac arrythmias, previous PD surgical interventions, prosthetics comprised of ferrous metals, pacemakers, DBS, Uncontrolled, unstable or untreated medical illnesses, Consumption of more than 21 alcoholic drinks per week, Pregnant, breast feeding, developmental disability