Cognitive Rehabilitation for PD (CogSMART-PD)

To investigate the effectiveness of a novel compensatory cognitive rehabilitation program for individuals with Parkinson's disease (PD) and mild cognitive impairment (MCI).

Eligible study participants will be randomly assigned to one of two interventions: 1) Cognitive Rehabilitation (Cognitive Symptom Management and Rehabilitation Therapy for Parkinson's disease; CogSMART-PD) or 2) Supportive Care. Interventions are held within a group format consisting of approximately 5 individuals with PD. Groups will meet once per week for 1.5 hours over a 10-week period. Neuropsychological testing will be administered pre- and post-intervention as well as 6- and 12-months after the intervention.

The WAIS-IV Matrix Reasoning test is a validated, objective measure of executive function. Scaled scores range from 0 to 26. Higher scores indicate better executive function. Scores reported below are change scores.

Delis-Kaplan Executive Functioning System (D-KEFS): 20 Questions Test Total Questions Asked Scaled Score

D-KEFS: 20 Questions Test measures executive function. The range of scores is 1 - 19 with a higher score representing better executive function. Scores reported below are change scores.

The measure examines self-reported change in cognition over time. Scores range from 16 - 80, with higher scores indicating worse functioning (or more cognitive decline). Scores reported below are change scores.

CPSA measures cognitive problems and memory strategy use. The range for scores is 0 - 90, with higher scores indicating higher frequency of using memory and thinking strategies. Scores reported below are change scores.

IQCODE is a self-report questionnaire for caregivers that measures possible dementia and cognitive decline of the patient. The range for scores is 26 - 130, with higher score representing worse functioning/higher cognitive decline in the patient. Scores reported below are change scores.

MIST measures prospective memory. The range for scores is 0 - 48 with a higher score representing better prospective memory. Scores reported below are change score.

WHOQOL-BREF is a self-reported measure of quality of life. Transformed score for the psychological domain ranges from 0 to 100. Higher scores indicate better quality of life. Scores reported below are change scores.

The PDQ-39 is a patient-reported measure of health and quality life over a 1-month period in individuals with Parkinson's disease. Total scores range from 0 to 156. Higher scores indicate poorer quality of life. Scores reported below are change scores.

The NPI-Q is a self-reported measure of neuropsychiatric symptoms over a 1 month period and 1 year period. Total month scores range from 0 to 156. Higher scores indicate greater severity of neuropsychiatric symptoms. Scores reported below are change scores.

Inclusion Criteria: Diagnosis of Parkinson's disease Mild Cognitive Impairment Over 40 years of age Fluent English speaker Exclusion Criteria: Other neurological conditions (e.g., stroke) besides Parkinson's disease