Transcranial Magnetic Stimulation (TMS) for Primary Progressive Apraxia of Speech (PPAOS)

Inclusion Criteria: * Adults ages 18 and above who are able to consent * Diagnosis of primary progressive apraxia of speech based on neurological evaluation Exclusion Criteria: * Any uncontrolled medical condition expected to limit life expectancy or interfere with participation in the trial (i.e. unstable cancer, severe depression or anxiety by DSM-IV criteria) * Abnormal stress test, as determined by the treating physician (unless cardiology clearance provided) * Active substance abuse or alcohol dependence * Uncorrected vision or hearing deficits that would preclude administration of the cognitive measures * Unwilling or unable to provide written informed consent * History of fainting spells of unknown or undetermined etiology that might constitute seizures * History of seizures, diagnosis of epilepsy, history of abnormal (epileptiform) EEG or family history of treatment resistant epilepsy * No medication is an absolute exclusion from TMS. Medications will be reviewed by the responsible MD and a decision about inclusion will be made based on the following: * The subject's past medical history, drug dose, history of recent medication changes or duration of treatment, and combination with other CNS active drugs. * The published TMS guidelines review medications to be considered with TMS * Any metal in the brain, skull or elsewhere unless approved by the responsible MD * Any medical devices (i.e. Cardiac pacemaker, deep brain stimulator, medication infusion pump, cochlear implant, vagal nerve stimulator) unless otherwise approved by the responsible MD * Substance abuse or dependence within the past six months * Absence of corticospinal functional integrity