Background Cognitive deficits considerably contribute to the patient's burden in Parkinson's
disease (PD). While cognitive decline is linked to neuronal dysfunction, the additional role of …

Abstract Background People with Parkinson's disease (PD) can develop multidomain
cognitive impairments; however, it is unclear whether different pathologies underlie domain …

A substantial percentage of patients with newly diagnosed Parkinson's disease without
dementia are reported to be affected by cognitive impairment (CI). In practice, however, CI is …

ABSTRACT Background White matter hyperintensities (WMHs) have a role in cognitive
impairment in normal brain aging, while the effect on Parkinson's disease (PD) progression …

Abstract Background Patients with Parkinson's disease (PD) experience changes in
behavior, personality, and cognition that can manifest even in the initial stages of the …

Objective The objective of this study was to determine the frequency and impact of
subjective cognitive complaint (SCC) in Parkinson's disease (PD) patients with normal …

Cognitive impairment (CI) and dementia are frequent and debilitating features associated
with Parkinson's disease (PD). Formal neuropsychological examination is required to …

Background: Cognitive dysfunction is common in Parkinson's disease (PD), and along with
PD with dementia (PDD), the concept of mild cognitive impairment in PD (PD‐MCI) has been …

Background People with PD are at high risk of developing cognitive impairment and
dementia. Cross‐sectional studies have identified candidate biomarkers associated with …

This study was undertaken to determine the prevalence and correlates of cognitive
impairment (CI) and neuropsychiatric symptoms (NPS) in early, untreated patients with …