Abstract
AbstractSpeech-language pathologists are increasingly treating patients with progressive disorders, including primary progressive aphasia (PPA). For many years, two variants of PPA were recognized: a nonfluent type—progressive nonfluent aphasia (PNFA)—and a fluent form—semantic dementia (SD). In 2004, a third variant—logopenic progressive aphasia (LPA)—was described. This article will review clinical symptoms, neuroimaging correlates, and the neuropathologies that are typically associated with PNFA, SD, and LPA. Case studies are included to further illustrate the characteristics of each of these three PPA variants.
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More From: Perspectives on Neurophysiology and Neurogenic Speech and Language Disorders
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