Table 1. Reaction time (ms).
| Task ∙ symbol | Response | Young | Choice comparison |
Symbolic comparison |
Middle | Choice comparison |
Symbolic comparison |
Age comparison |
|
|---|---|---|---|---|---|---|---|---|---|
| Simple | 232 ± 41 | 228 ± 41 | |||||||
| Choice | Arrow | LR choice | 314 ± 52 | 336 ± 53 | ** | ||||
| IL choice | 315 ± 64 | b†† | 344 ± 61 | b†† | ** | ||||
| CL choice | 415 ± 92 | c†† | 439 ± 96 | c†† | ** | ||||
| Figure | LR choice | 351 ± 69 | a†† | d†† | 372 ± 85 | a†† | d†† | ** | |
| IL choice | 309 ± 53 | b†† | 336 ± 60 | b†† | ** | ||||
| CL choice | 391 ± 110 | c†† | e†† | 409 ± 84 | c†† | e†† | * | ||
| Go/no-go | LR choice | 333 ± 57 | a†† | 361 ± 64 | a†† | ** | |||
| IL choice | 371 ± 74 | b†† | 415 ± 79 | b†† | ** | ||||
| CL choice | 452 ± 122 | c†† | 498 ± 98 | c†† | ** | ||||
n=51 (for each task).
All data are presented as the mean ± SD. Simple: Simple RT task; Choice: Choice RT task; Go/no-go: Go/no-go RT task; Arrow: Arrow symbol; Figure: Figure symbol; Response: Spatial attribute of button to press; Choice comparison: Comparison of left/right ipsilateral, and contralateral choice variables; Symbolic comparison: Comparison of the two symbol variables; Age comparison: Comparison of young and middle-aged participant responses; LR choice: Left and right choice; IL choice: Ipshilateral choice; CL choice: Contralateral choice. a: Left/right vs. Ipsilateral, b: Ipsilateral vs. Contralateral, c: Left/right vs. Contralateral, d: Left/right with arrow symbol vs. Left/right with figure symbol, e: Contralateral with arrow symbol vs. Contralateral with figure symbol.
††p<0.01, *p<0.05, **p<0.01.