Table 2. Subject characteristics.

Demographic information of the study sample and WMS-III Faces raw and scaled scores for Immediate and Delayed recognition. On the WMS-III Faces test, three PPA patients performed in the mildly impaired range for Immediate Recognition, with one of those three also for Delayed Recognition. Two control subjects also performed in the mildly impaired range for Immediate Recognition, and one for Delayed Recognition (normal: scaled score greater than 6, mild impairment: 5–6, moderate: 3–4, severe: 1–2). The WAB was administered only to PPA patients, because healthy adults are expected to obtain a perfect score of 100. Lower scores signify increasing language deficits. [56]

	PPA n = 37	Control n = 32
M/F (% Male)	16/21 (43.2%)	16/16 (50%)
Mean (SD) Age in years	64.9 (7.2)	62.5 (7.0)
Mean (SD) Education in years	16.1 (2.1)	15.8 (2.5)
Race (Caucasian/Asian/African American)	37/0/0	26/1/5*
Mean (SD) [Range] WAB Aphasia Quotient	86.9 (7.5) [73.9–97.2]	--

Mean (SD) [Range]	n = 34	n = 28
Immediate Raw Score	35.9 (5.0) [26–44]	37.4 (3.8) [27–43]
Delay Raw Score	37.3 (4.3) [28–45]	37.6 (3.5) [29–45]
Immediate Scaled Score	11.1 (3.3) [6–17]	11.7 (2.7) [6–17]
Delay Scaled Score	12.5 (3.3) [6–18]	12.3 (2.6) [6–18]

^*p < .01

Abbreviations: PPA, primary progressive aphasia; WMS-III, Wechsler Memory Scale, Third Edition; SD, standard deviation, WAB, Western Aphasia Battery