Deep brain stimulation (DBS) helps reduce movement problems in Parkinson's disease (PD). This study aims to make DBS programming faster by using local field potentials (LFPs), which are tiny electrical signals in the brain, to find the best settings. The study compares this new method to the traditional way doctors set up DBS.

Up to 30 people with DBS devices will join. Their devices can both give therapy and record brain activity. Doctors will try three different ways to set up the DBS: the usual doctor method, based on LFPs, and a mix of both. The first and third ways follow current medical rules, while the second uses a new science-based method. This new method might end up with the same settings as the usual methods, so it's safe.

• Participants need to be 21-89 years old with Parkinson's and have a Medtronic DBS device.
• Participants must agree to join the study during their first programming session.
• The study will include up to four different DBS setting trials.