Abstract
Introduction: Foreign accent syndrome (FAS) is a rare speech disorder with a variety of reported etiologies. Diagnostic criteria of neurologic FAS include (1) the accent is considered by the patient, acquaintances, and physician to sound foreign; (2) the accent is different from speech prior to cerebral insult; (3) it is related to CNS damage and is not psychogenic; and (4) the patient does not have a history indicating a reason for having an accent. Most individuals have accompanying left cerebral hemisphere lesions or have a pathologic disruption between cerebral and cerebellar speech centers. Individuals who experience cerebrovascular accidents are particularly susceptible to FAS. It has been reported that problems with articulation and comprehension can eventually lead to FAS. Psychogenic FAS is sometimes considered a subcategory of conversion disorder and has common comorbid psychiatric conditions including depression, bipolar disorder, and schizophrenia and can present with additional conversion disorders. FAS can also present independent of other comorbid conditions.
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