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Updated: Mar 2, 2026

Author Spotlight: Exploring Non-Motor Symptoms in Parkinson's Disease
Published on: September 22, 2023
Nonmotor Symptoms in Parkinson's Disease
Umer Akbar1, Anelyssa D'Abreu1, Joseph H Friedman1
1Department of Neurology, Brown University, Providence, Rhode Island.
Abstract:
Nonmotor symptoms (NMSs) in Parkinson's disease (PD) have become increasingly recognized as major determinants of quality of life across cultures worldwide. Behavioral symptoms include dementia, depression, anxiety, apathy, and fatigue. Somatic symptoms include hypotension, constipation, diaphoresis, and pain. However, somatic symptoms may also be intrinsic, such as dementia, and iatrogenic, such as compulsive disorders. The authors address some of the more common disorders, yet few have been the target of clinical trials.
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