Are you someone living with Parkinson's disease? If so, you are aware that in addition to symptoms affecting movement, people with Parkinson's disease also experience non-motor symptoms such as problems with mood and motivation which can be difficult to treat. If you have been living with Parkinson's disease for at least 5 years and take medication for Parkinson's disease, you may be eligible to participate in a research study aimed at treating low motivation with a form of non-invasive brain stimulation called transcranial magnetic stimulation (TMS).

Examine the validity and reliability of UTRS in the assessment of essential tremor (ET) and Parkinson tremor.

Have you or a family member been diagnosed with Parkinson's Disease? Would you be interested in helping researchers learn more about Parkinson's by giving a blood or saliva sample? If so, you may be eligible to participate in a research study that will utilize genetic testing to provide you more information about the possible roles of your genes in your diagnosis.

Are you interested in advancing treatments in Parkinson's disease? Did you know that the non-motor symptoms of Parkinson's disease are often very disabling and can lead to poor outcomes with the disease? If you have Parkinson's disease, you may be eligible to take part in a research study to learn if we can use non-invasive brain stimulation to treat these symptoms in Parkinson's disease

Do you have probable Dementia with Lewy Bodies (DLB), Mild Cognitive Impairment with "high likelihood" DLB, or Parkinson's Disease Dementia (PDD)? You may be able to participate in an observational study to track your disease progression and promote future research.

We are using specialized functional MRI for people receiving deep brain stimulation surgery to help predict who will benefit most from this procedure.

The purpose of this research study is to learn if and how non-invasive brain stimulation influences motivation problems in Parkinson's disease. Men and women aged 55-80 years with Parkinson's disease for at least 5 years can join the study. There are three study visits. Participation will involve answering questions, doing exercises where you squeeze a joystick to earn "rewards", recording of your brain activity, and receiving transcranial magnetic stimulation (TMS).