Mood Disorders and Apathy in Parkinson’s Disease
Mood Disorders and Apathy in Parkinson’s Disease
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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