Dementia is a frequent problem encountered in advanced stages of Parkinson disease (PD).
In recent years, research has focused on the pre-dementia stages of cognitive impairment in …

Dementia has been increasingly more recognized to be a common feature in patients with
Parkinson's disease (PD), especially in old age. Specific criteria for the clinical diagnosis of …

Alzheimer's disease (AD) is a progressive neurodegenerative disease characterized by
memory loss and multiple cognitive impairments. AD is marked by multiple cellular changes …

Hallucinations, mainly of a visual nature, are considered to affect about one-quarter of
patients with Parkinson's disease. They are commonly viewed as a side-effect of …

Dementia affects about 40% of patients with Parkinson's disease; the incidence of dementia
in these patients is up to six times that in healthy people. Clinically, the prototype of …

Most functional imaging studies of memory retrieval investigate memory for standardized
laboratory stimuli. However, naturally acquired autobiographical memories differ from …

We used MRI volume sampling with coregistered and atrophy corrected FDG-PET scans to
test three hypotheses: 1) hippocampal formation measures are superior to temporal …

Seeking antemortem markers to distinguish Dementia with Lewy bodies (DLB) and
Alzheimer's disease (AD), we examined brain glucose metabolism of DLB and AD. Eleven …

Over the past three decades, neuroimaging studies—including structural, functional and
molecular modalities—have provided invaluable insights into the mechanisms underlying …

Widely targeted metabolomic assays are useful because they provide quantitative data on
large groups of related compounds. We report a high performance liquid chromatography …