Dementia is a frequent problem encountered in advanced stages of Parkinson disease (PD).
In recent years, research has focused on the pre-dementia stages of cognitive impairment in …

The clinical features of dementia with Lewy bodies (DLB) and Parkinson's disease dementia
(PDD) are similar and include dementia, cognitive fluctuations, and (visual) hallucinations in …

Patients with Parkinson's disease have a number of specific visual disturbances. These
include changes in colour vision and contrast sensitivity and difficulties with complex visual …

Many aspects of cognition and behaviour are regulated by noradrenergic projections to the
forebrain originating from the locus coeruleus, acting through alpha and beta …

Dementia with Lewy bodies (DLB) and Parkinson's disease-dementia (PDD), although
sharing many clinical, neurochemical and morphological features, according to DSM-5, are …

In the long-term, with progression of the illness, Parkinson's disease dementia affects up to
90% of patients with Parkinson's disease. With increasing life expectancy in western …

Parkinson's disease (PD) is the second most common progressive neurodegenerative
disorder mainly in middle‐elderly population, which represents diverse nonmotor symptoms …

Background There are currently no treatments that stop or slow the progression of
Parkinson's disease (PD). Case–control genome‐wide association studies have identified …

Although Parkinson's disease (PD) is primarily a movement disorder, there are a range of
associated nonmotor symptoms, including cognitive impairment, depression and sleep …

Parkinson's disease causes a characteristic combination of motor symptoms due to
progressive neurodegeneration of dopaminergic neurons in the substantia nigra pars …