Pseudobulbar affect
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(Redirected from Labile affect)
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Pathological laughing and crying (PLC) is a syndrome in which patients experience relatively uncontrollable episodes of laughing or crying, or both. The laughter or crying are provoked by nonsentimental or trivially-sentimental stimuli. These episodes are not manifestations of a mood disorder such as major depression or mania, where laughing and crying are expressed in tandem with feelings of happiness or sadness, nor do they represent ictal displays of affect. While there is general agreement that PLC is a disorder of affect, and not of mood, there are disagreements about both its core clinical features and whether PLC is the best diagnostic term for this condition.
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