Clinical Research Directory

Inclusion Criteria: * diagnosed with PPA by neurologist or speech-language pathologist * speech-language deficit arising from PPA * native speaker of English Language or equivalent * adequate vision (normal or corrected to normal) * adequate hearing Exclusion Criteria: * meeting (Diagnostic and Statistical Manual) DSM-IV criteria for Axis I mood, anxiety, psychotic or substance abuse disorders. * highly magnetizable metallic implants, including certain dental work * neurological disorders besides the ones of interest for the study (e.g., epilepsy) * Multiple Sclerosis * Parkinson's Disease * contraindications for MRI * pacemakers * metallic cardiac pumps * valves * magnetic materials such as surgical clips, implanted electronic perfusion pumps, or any other condition that would preclude proximity to a strong magnetic field. * clinically significant claustrophobia * severe systemic disease (e.g., renal failure) * poor health * pregnancy * epileptic activity in the past 12 months * family history of epilepsy or other seizure disorders * brain surgery in the past * metallic skull plates or implants * skin lesions or skull damage * excessive use of alcohol or drugs * premorbid psychiatric disease affecting communication * severe non-linguistic cognitive disturbances impeding language therapy