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  • Title: Gelastic epilepsy and dysprosodia in a case of late-onset right frontal seizures.
    Author: Cercy SP, Kuluva JE.
    Journal: Epilepsy Behav; 2009 Oct; 16(2):360-5. PubMed ID: 19733125.
    Abstract:
    Gelastic epilepsy (GE) is an uncommon type of seizure disorder characterized by stereotyped, unprovoked, inappropriate ictal laughter. GE is most frequently associated with hypothalamic hamartoma, with onset almost invariably occurring during childhood. GE also occurs occasionally with temporal and frontal cortical seizure foci. We describe an unusual case of senescent-onset GE with a right frontal seizure focus. In addition to laughter, dysprosodia was a clinical feature. Clinical and electroencephalographic evidence of seizure activity ceased on levetiracetam, and the patient showed concurrent improvement in cognitive function. We review the evidence for the cerebral representation of laughter and prosody, and discuss issues bearing on the differential diagnosis and management of GE.
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