In total, 10 PD patients and 10 age matched control subjects will be included in the study, all between the ages of 45-65 years. Of the 10 control subjects, 3 will undergo full dynamic scanning, all other subjects included will undergo simple static scanning. A total of 10 subjects, 5 from each group, will undergo a second static scan. The patient group includes patients with Parkinson's disease with a disease duration of at least 3 years and maximum 10 years. All subjects will undergo a neuropsychological assessment.