Epidemiological research aims to provide information on the development, prevalence and
progression of diseases, and their associated risk factors. Epidemiological research is thus …

Although diagnosed by characteristic motor features, Parkinson's disease may be preceded,
and is frequently accompanied by, a wide range of cognitive and neuropsychiatric features …

Affective disorders, cognitive decline, and psychosis have long been recognized as common
in Parkinson disease (PD), and other psychiatric disorders include impulse control …

To determine the extent to which depression complicates Parkinson's disease (PD), the
authors analyzed the literature on depression in PD in order to report on its prevalence …

The postoperative neurologic management of patients with deep brain stimulation (DBS) of
the subthalamic nucleus (STN) for Parkinson's disease is a complex dynamic process that …

Purpose The objective of the study was to examine the association between 39 physical
diseases and death by suicide in older adults. Methods Individual-level register data on all …

BackgroundConverging evidence implicates basal ganglia alterations in impulsivity and
suicidal behavior. For example, D2/D3 agonists and subthalamic nucleus stimulation in …

Background: While dementia is more common in older people and suicide rates in many
countries are higher among the elderly, there is some doubt about the association between …

Background The risk of suicide behaviours post–deep brain stimulation (DBS) surgery in
Parkinson's disease (PD) remains controversial. We assessed if suicide ideation and …

Introduction and objective The aim of this study was to compare co** strategies and
quality of life (QoL) in multiple sclerosis (MS), as they relate to the course of the disease …