Table 1.
Mean demographic and neuropsychological characteristics per age group
| Young adults (N = 14) | Older adults (N = 14) | |
|---|---|---|
| Age in years | 25.1 (4.0) | 71.0 (4.2) |
| Gender | 4M/10F | 2M/12F |
| Years of educationa | 16.3 (1.3) | 16.6 (2.8) |
| Modified TICS | n/a | 39.3 (3.2) |
| WASI | ||
| Vocabulary | 68.3 (4.6) | 65.5 (8.8) |
| Matrix reasoning** | 30.4 (1.9) | 24.1 (7.0) |
| CVLT total learning score | 58.1 (9.2) | 58.2 (13.6) |
| WMS-IV Logical Memory 2 | 26.3 (7.7) | 24.2 (5.0) |
| Rey-Ost. Complex Figure–Delayed* | 22.9 (4.5) | 16.9 (7.4) |
| Operation span (# of words)** | 53.2 (5.2) | 44.4 (5.7) |
| Paper Folding Task* | 12.6 (4.5) | 9.6 (2.9) |
| OSIQ Spatial Scale | 2.8 (0.7) | 2.5 (0.9) |
| Post-Scan Free Recallb | ||
| Visual Features* | 17.4 (4.0) | 13.9 (5.1) |
| Auditory Features* | 2.1 (0.4) | 1.7 (0.5) |
| Visual Errors | 1.0 (0.5) | 0.9 (0.5) |
| Auditory Errors | 0.2 (0.2) | 0.1 (0.1) |
| Post-Scan true/false questions (d′) | 1.1 (0.3) | 0.9 (0.3) |
Note. SD is in parentheses.
aYears of education were unavailable for one older participant.
bFree Recall data were unavailable for one older participant due to a recording error. CVLT, California Verbal Learning Test; OSIQ, Object-Spatial Imagery Questionnaire; Rey-Ost., Rey-Osterrieth Complex Figures test; TICS, Telephone Interview for Cognitive Status; WASI, Wechsler Abbreviated Scale of Intelligence; WMS-IV, Wechsler Memory Scale, Fourth Edition. Stars indicate significant differences between age groups based on independent sample t tests.
*p < 0.06,
**p < 0.01, all tests two-tailed.