Impact of Individual Cognitive Remediation for Parkinson's Disease

1. Subjects must be between 40 and 75 years old (including both ages) at the time of study screening.
2. Subjects must have a diagnosis of Parkinson's Disease by a physician.
3. Subjects must demonstrate adequate decisional capacity, in the judgment of the consenting study staff member, to make a choice about participating in this research study.
4. Subjects must have been clinically stable (non-acute) for 2 weeks prior to consent; in the judgment of the Investigator.
5. Subjects with a cognition level between Impaired and Average (scaled score between 4-12 or Index Score between 70-110) based on TOMAL Cognitive assessment at Visit 1
6. Subjects must have the visual, auditory, and motor capacity to use the intervention in the judgment of the Principal Investigator.

Exclusion Criteria:

1. Subjects who are participating in a concurrent research study or another interventional clinical trial 30 days prior to consenting.
2. Subjects having a history of mental retardation or pervasive developmental disorder; or other co-morbid neurological disorder (e.g., epilepsy.)
3. Subjects who appear to be intoxicated or under the influence of a controlled substance on any day of assessment must be rescheduled and may be discontinued based upon the discretion of the investigator
4. Subjects on medications that affect the cognition in the last 12 hours prior to the study visits that assess the cognitive functions