Study of the Effect of the Cognitive Orientation to Daily Occupational Performance (CO-OP) on Cognitive Impairment in Parkinson's Disease

Participants with Parkinson's disease will be participating in up to 12 one-on-one treatment sessions with 2 sessions per week, for up to 6 weeks. Each session will last 45-60 minutes. During these treatment sessions, each participant will be taught a problem-solving strategy that teaches individuals to monitor and adjust their own actions. Participants will be guided by the principal investigator to select 5 individual treatment goals to work on during treatment. Sessions will continue until all 5 treatment goals have been met or until 12 sessions have been completed, whichever occurs earlier. Initially, each participant's respective primary caregiver will be required to attend treatment sessions, so that the caregiver may be familiar with the treatment strategy in order to coach the participant with Parkinson's disease when you he or she uses the strategy at home.