Connected speech profiles in primary progressive aphasia

Purpose (1) To explore the quantitative connected speech profiles of primary progressive aphasia (PPA) consistent with different variants (2) To find potential diagnostic markers which can differentiate the non-fluent/agrammatic variant (nfv) from the logopenic variant (lv) and the semantic variant (sv) Hypothesis Measures related to syntactic and motor speech production and lexical retrieval would differentiate nfvPPA from lvPPA/svPPA