Apraxia of speech in the spontaneous speech of nonfluent/agrammatic primary progressive aphasia

Nine researchers from the University of Pennsylvania’s School of Medicine report results of a study into the prevalence and presentation of apraxia of speech (AoS) phenomena in the spontaneous, connected verbal productions of persons with nonfluent/agrammatic primary progressive aphasia (naPPA).  The two goals of their investigation were:  [1]  to assess the types and frequencies of…