Inclusion Criteria:  Between the ages of 45-85 Diagnosis of idiopathic Parkinson's disease Bilateral, moderate-stage impairment, as defined as Hoehn & Yahr Stages II-IV in the on-medication state MDS-UPDRS III motor improvement greater than or equal to 30% when on medication compared to when off medication. Participants must be stabilized on medication and report that their medication works well for them Able to provide informed consent Appropriate social support Proficient with technology; can use a computer, check email, and access the internet; can initiate and engage in a virtual meeting for training and monitoring purposes Participants must speak English and can communicate with staff Participant lives in or near the San Francisco Bay Area  Exclusion Criteria:  Presence of other forms of non-idiopathic parkinsonism, including but not limited to atypical parkinsonism, medication-induced parkinsonism, and vascular Parkinsonism Presence of other neurological diseases (i.e major depression, dementia, ADHD psychosis, dementia etc…) Severe depression, severe anxiety, or psychosis for the purpose of excluding candidates at an elevated risk of suicidal tendencies Participation in another drug, device, biologic, or intervention trial concurrently or within the preceding 30 days Physical limitations unrelated to Parkinson's disease Wheelchair-bound or significant reliance on a walker to ambulate during ADLs (needs to be appropriately mobile to complete mobility assessments) Consumption of psychoactive, narcoleptic medication or on medication that effects brain function or alters EEG recorded activity (i.e anticonvulsants, ADHD, depression or anxiety medication) Speech problems or excessive drooling so severe patient cannot communicate properly to staff Presences of dopamine dysregulation syndrome On dopamine agonist(s) and exhibits compulsive behaviors In a confusional state (delirium) (Temporary, event-driven delirium does not exclude if can be attributed to a prior event) Pregnancy, breastfeeding, or lack of reliable contraception in women of childbearing age Living in a congregate living setting History of epilepsy or traumatic brain injury Brain surgery (i.e DBS implantation) or craniotomy Neurostimulator Cornrows, big afros or dreadlocks (participants who cannot wear EEG caps) Severe sensory abnormalities of the fingertips such as vibratory urticaria Hallucinations, delusions