Experimental: Patients with Parkinson's Disease

Patients with PD complete motor response inhibitions tasks under multiple conditions, depending on the study aim they are participating in. Those who are participants in Aim 1 of the study are able to also participate in Aims 2 and 3 if they are having a clinically indicated DBS leads implanted. Patients with PD will participate in the study for approximately 18 months which includes one preoperative visit, intraoperative data collection and two post-operative visits. As part of the motor inhibition tasks, EEG signals will be recorded. A cap similar to a swim cap will be placed on the head of the subject, and gel will be applied to the hair to get a good signal. Electrodes will be attached to the cap for recording of brain signals. A few additional flat electrodes will be placed on the skin to record hand muscle activity (for GNG task) and near the eyes to record eye movements. Accelerometer sensors will be utilized to record arm movements (for MSS task).

No_intervention: Healthy Controls

Healthy participants complete motor response inhibition tasks during two study visits. Healthy controls will participate for approximately one month, which includes two study visits. As part of the motor inhibition tasks, EEG signals will be recorded. A cap similar to a swim cap will be placed on the head of the subject, and gel will be applied to the hair to get a good signal. Electrodes will be attached to the cap for recording of brain signals. A few additional flat electrodes will be placed on the skin to record hand muscle activity (for GNG task) and near the eyes to record eye movements. Accelerometer sensors will be utilized to record arm movements (for MSS task).