Background: Numerous neuropsychological tests and test versions are used in Parkinson's
disease research, but their relative capacity to detect mild cognitive deficits and their …

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

Introduction: Cognitive impairment is common in Parkinson's disease (PD), even in the early
stages, and appropriate screening tools are needed. Methods: We investigated the utility of …

There is growing interest in identifying Parkinson's disease (PD) patients with mild cognitive
impairment (PD‐MCI), but widely disparate criteria have been used. We assessed 143 PD …

Background Administering an abbreviated global cognitive test, such as the Montreal
Cognitive Assessment (MoCA), is necessary for the recommended first‐level diagnostic …

We examined the frequency of Parkinson disease with mild cognitive impairment (PD‐MCI)
and its subtypes and the accuracy of 3 cognitive scales for detecting PD‐MCI using the new …

Cognitive impairment is common in Parkinson's disease (PD). There is a critical need for a
brief, standard cognitive screening measure for use in PD trials whose primary focus is not …

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

Cognitive impairment in Parkinson's disease is heterogeneous both in severity and pattern
and subject to influences both integral to and external to the disease. Diagnostic Criteria …

Background The optimal properties of a comprehensive (level II) neuropsychological battery
for determining Parkinson's disease mild cognitive impairment (PD‐MCI) by Movement …