Background: Cognitive impairment in Parkinson's disease (PD) includes a spectrum varying
from Mild Cognitive Impairment (PD-MCI) to PD Dementia (PDD). The main aim of the …

Introduction: Mild cognitive impairment is common in nondemented Parkinson disease
patients (PD-MCI) and is considered as a risk factor for dementia (PDD). Recently, the …

Objective Mild cognitive impairment in Parkinson's disease (PD‐MCI) has been suggested
to be a predictor for the development of PD dementia (PDD). This study explored the …

Cognitive impairment in Parkinson's disease (PD) greatly affects the morbidity and mortality
rates of the disease and can be present as mild executive dysfunction even in the early …

Approximately 30% of Parkinson's disease (PD) patients show impaired cognitive
performance, which is suggestive of Mild Cognitive Impairment (MCI), representing a …

Aims: The aim of this study was to examine the heterogeneity of cognitive dysfunction in
Parkinson's disease (PD) and to evaluate the contribution of cognitive criteria to the …

Background Prevalence of mild cognitive impairment (MCI) and dementia in Parkinson
disease (PD) is variable because different classification criteria are applied and there is lack …

Objective: To examine the incidence, progression, and reversion of mild cognitive
impairment in patients with Parkinson disease (PD-MCI) over 5 years. Methods: A …

Background Although Parkinson's disease (PD) is clinically characterized by motor
symptoms, cognitive impairment is one of the most disabling non-motor symptoms. Despite it …

Background: Cognitive deficits are common in Parkinson's disease (PD), but the range of
deficits is variable. The aim of this study was to identify different cognitive subgroups …