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The Cognitive Neuropsychiatry of Parkinson's Disease$
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Patrick McNamara

Print publication date: 2011

Print ISBN-13: 9780262016087

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262016087.001.0001

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Mood Disorders and Apathy in Parkinson’s Disease

Mood Disorders and Apathy in Parkinson’s Disease

Chapter:
(p.154) (p.155) 10 Mood Disorders and Apathy in Parkinson’s Disease
Source:
The Cognitive Neuropsychiatry of Parkinson's Disease
Author(s):

Patrick McNamara

Publisher:
The MIT Press
DOI:10.7551/mitpress/9780262016087.003.0010

This chapter finds that Parkinson’s disease (PD) patients are characterized by mood swings or mood disorders, resulting in apathy or complete indifference toward tasks and social interactions. Constant anxiety and depression result in mood disorders and indifferent attitudes among PD patients. The loss of inhibitory signals derived from the central nervous system and lack of coordination of neural networks result in severe mood swings and neuropsychiatric disorders in PD patients. These patients are unable to demonstrate appropriate emotional expressions as these are impaired due to aggravated mental and physical conditions. The lack of emotional expressions also makes it difficult for the patients to control respective emotions under certain conditions.

Keywords:   mood swings, mood disorders, inhibitory signal, nervous system, neuropsychiatric disorders

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