 Subjects diagnosed with Idiopathic Parkinsons Disease, between ages of 40-85 inclusive, who have been referred for gait training. Since there can be subtle differences in the brain organization of left- and right-handed people that may influence some of the measurements, right handed participants are preferred. However, a left handed participant may be considered. Participants will be randomly assigned to one of two groups to undergo two weeks of twice-daily sessions. Group A receiving goggles fitted with lenses that distort vision and Group B patients receiving sham goggles 