Introduction Neuropsychiatric symptoms are one of the most common non-motor symptoms
in Parkinson's disease (PD). These symptoms have a negative impact on daily living …

Several studies have reported heterogeneity in cognitive symptoms associated with specific
characteristics of patients with Parkinson's disease (PD). Indeed, researchers have …

Patients with Parkinson's disease (PD) typically present with motor symptoms, but several
non-motor symptoms, such as cognitive impairment, autonomic dysfunction and …

Neuropsychiatric symptoms commonly complicate Parkinson's disease (PD), however the
presence of such symptoms in mild cognitive impairment (PD‐MCI) specifically has not yet …

Parkinson disease (PD) is the most common neurodegenerative movement disorder,
affecting 1 in 100 individuals over the age of 60. Dementia in the setting of PD (PDD) may be …

The main histopathological hallmarks of Parkinson's disease (PD) are the degeneration of
the dopaminergic neurons of the substantia nigra pars compacta and the loss of …

Throughout the natural history of Parkinson's Disease (PD), from the pre-diagnostic phase to
end stage disease, neuropsychiatric manifestations represent a core feature of the disease …

Patients with Parkinson's disease (PD) can experience several behavioral symptoms, such
as apathy, agitation, hypersexuality, stereotypic movements, pathological gambling, abuse …

Depression, anxiety and apathy are common mood disturbances in Parkinson's disease
(PD) but their pathophysiology is unclear. Advanced neuroimaging has been increasingly …

Psychosis is one of the debilitating non-motor symptoms (NMS) of Parkinson's disease (PD).
Cognitive impairment is considered to be a risk factor for emergence of psychosis in PD …