Progress and Prospects in Parkinson's Research/Symptoms/Dementia

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Dementia

Abnormal progressive decline in cognitive function

See also Cognitive Impairment

The following references are relevant.

Leverenz et al, (2009)  Cognitive Impairment and Dementia in Patients with Parkinson Disease 

Johnson and Galvin (2011)  Longitudinal Changes in Cognition in Parkinson's Disease with and without Dementia 

Weintraub et al (2011)    Neurodegeneration Across Stages of Cognitive Decline in Parkinson Disease 

Further Research