Values represent mean (SD). All groups were matched for age and years of education. PPA patients were sorted into two groups, PPA-S and PPA-GL. Both PPA groups showed lower performance on all language measures compared with controls. PPA-S patients showed lower performance than PPA-GL patients on measures of naming and semantic judgment. Education, Years of education; WAB–AQ, –Rep, Western Aphasia Battery–Aphasia Quotient, –Repetition; BNT, Boston Naming Test; PPVT, Peabody Picture Vocabulary Test; PPT, Pyramids and Palm Trees Test; NAT, Northwestern Anagram Test; WPM, words per minute.