Mental state
The mental state and emotions of parkinsonian patients may be unimpaired by the condition, but the expression of normal affect can be limited by the immobile, mask-like facies.
Encephalitis lethargica is particularly associated with changes of mood and personality. Depression is common.
Reference
- Sveinbjornsdottir S; The clinical symptoms of Parkinson's disease. J Neurochem. 2016 Oct;139 Suppl 1:318-324.
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