Depressive disturbances are common in patients with Parkinson's disease (PD) and
influence many other clinical aspects of the disease. In addition to causing inherent …

Depression is perhaps the most frequent cause of emotional suffering in later life and
significantly decreases quality of life in older adults. In recent years, the literature on late-life …

We performed a multicenter survey using a semistructured interview in 1,072 consecutive
patients with Parkinson's disease (PD) enrolled during 12 months in 55 Italian centers to …

Reliability, Validity, and Clinical Correlates of Apathy in Parkinson’s Disease Page 1 134
VOLUME 4 #{149} NUMBER 2 #{149} SPRING 1992 Reliability, Validity, and Clinical …

Prevalence rates of depressive disorders in Parkinson's disease (PD) vary widely across
studies, ranging from 2.7% to more than 90%. The aim of this systematic review was to …

Patients with chronic medical illness have a high prevalence of major depressive illness.
Major depression may decrease the ability to habituate to the aversive symptoms of chronic …

Parkinson's disease is a chronic neurodegenerative disorder characterized by the motor
symptoms of bradykinesia, tremor, rigidity and postural instability. However, non-motor …

Objective The purpose of this review is to provide an update of the research regarding
depression in Parkinson's disease and to synthesize the information into a neurobiological …

Background: Depression, anxiety, fatigue and sleep disorders occur commonly in patients
with Parkinson's disease (PD). These non-motor symptoms often contribute to the reduction …

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 …