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Demonstration of cognitive decline in Parkinson's disease using the Cambridge Cognitive Assessment (Revised) (CAMCOG‐R)

Cognitive impairment is well recognised in Parkinson's Disease (PD) but few studies have examined cognitive decline over time in such subjects. Standard clinical assessments of cognitive function, such as the MMSE, do not measure all cognitive domains and often have a ceiling effect. CAMCOG‐R provides a more comprehensive cognitive assessment allowing several different domains of cognition to be compared. It also features the ability to test ‘executive function’. CAMCOG‐R has only been reported on one previous occasion in PD subjects and this is the first study to report a follow‐up CAMCOG‐R to assess cognitive decline.