Parkinson's disease affects the brain, causing movement problems. Treatment can include Deep Brain Stimulation (DBS), where tiny wires are placed in the brain to help control movement. This study compares two ways to adjust the DBS settings: the usual method, and a new way using a computer program called *StimSearch*. Participants will have the settings adjusted in both ways to see which one works better.
**Key Points**:
- **Study Duration**: Participants will try both programming methods, with evaluations at each stage.
- **Eligibility**: You must have Parkinson's disease and meet specific criteria, like showing improvement with medication.
- **Exclusion**: If you have serious psychiatric conditions, you cannot join the study.