Mild cognitive impairment is common in nondemented Parkinson's disease (PD) patients
and may be a harbinger of dementia. In view of its importance, the Movement Disorder …

Cognitive impairment in patients with Parkinson's disease is gaining increased clinical
significance owing to the relative success of therapeutic approaches to the motor symptoms …

We have previously performed detailed clinical and neuropsychological assessments in a
community-based cohort of patients with newly diagnosed parkinsonism, and through …

The dentate gyrus (DG) of the mammalian hippocampus is hypothesized to mediate pattern
separation—the formation of distinct and orthogonal representations of mnemonic …

Cognitive abnormalities are common in Parkinson's disease, with important social and
economic implications. Factors influencing their evolution remain unclear but are crucial to …

We investigated how dopamine (DA) systems contribute to cognitive performance in the
domain of learning and attentional flexibility by examining effects of withdrawing DA-ergic …

Background Huntington's disease is an autosomal-dominant neurodegenerative disease
caused by CAG trinucleotide repeat expansion in HTT, resulting in a mutant huntingtin …

Understanding human embryonic ventral midbrain is of major interest for Parkinson's
disease. However, the cell types, their gene expression dynamics, and their relationship to …

We have used multiple sources to identify a population‐representative cohort of newly
diagnosed patients with parkinsonism and Parkinson's disease in the UK over a 2‐year …

Studies in patients with Parkinson's disease (PD) suggest that the characteristic motor
symptoms of the disorder are frequently accompanied by impairments in cognition that are …