TABLE 1.
CLINICAL AND DEMOGRAPHIC CHARACTERISTICS OF PARTICIPANTS
| Semantic Dementia | Healthy Seniors | |
|---|---|---|
| n | 11 | 16 |
| Age (yrs)1 | 69.4 (9.0) | 72.3 (7.9) |
| Education (yrs)1 | 15.7 (2.8) | 15.9 (1.9) |
| MMSE (max = 30)1, 2 | 21.1 (6.4) | 29.1 (1.1) |
| Pyramid and Palm Tree (% correct)3 | 83.8 (10.7) | 96.9 (1.4) |
| Semantic Categorization (% correct)3 | 74.8 (16.4) | 93.3 (5.4) |
NOTE
1
Patients and controls were matched for age (t(25)=0.90; ns) and education (t(25)=0.16; ns), but patients were more impaired than controls according to the MMSE ((t(25)=3.92; p<.005).
2
Due to an oversight, MMSE was not collected at the time of assessment in one patient.
3
Performance in patients differs from controls on the cognitive measures at least at the p<0.05 level, according to Neuman-Keuls procedure.