Table 1.
Behavioral findings for visuospatial and autobiographical planning
| Young | Old | t | ||
| Visuospatial planning (percent accuracy) | ||||
| All | 73 (9) | 51 (19) | 4.58 | P < 0.001 |
| Three moves | 82 (8) | 74 (23) | 1.40 | ns |
| Four moves | 72 (20) | 48 (26) | 3.16 | P < 0.01 |
| Five moves | 70 (15) | 50 (29) | 2.71 | P < 0.05 |
| Six moves | 65 (31) | 31 (25) | 3.59 | P < 0.01 |
| Autobiographical planning | ||||
| Detail | 68 (14) | 59 (14) | 1.96 | P < 0.06 |
| Percent of plans with some detail | 99 (2) | 94 (8) | 2.54 | P < 0.05 |
| Percent of goals that were ongoing | 22 (10) | 25 (29) | 0.52 | ns |
| Days to completion (excluding ongoing) | 81 (92) | 27 (16) | 2.37 | P < 0.05 |
| Confidence in completion | 81 (8) | 73 (14) | 2.03 | P < 0.05 |
| Novelty of plan | 30 (12) | 32 (16) | 0.39 | ns |
| Ease of formulating plan in scanner | 77 (13) | 61 (18) | 3.00 | P < 0.01 |
| Foreseeable ease in executing plan in life | 69 (13) | 68 (12) | 0.44 | ns |
Note: Autobiographical planning detail, confidence, novelty, ease of formulating plan, and lifetime execution are all scaled to 1–100 from the initial 1–4 ratings scale. Percent of plans with some details are the proportion of plans rated 2–4 for detail out of 24 possible plans. Days to completion is the mean of the within subject median.