Table 3.
Ongoing task performance across blocks for young and older adults in each condition
| Block | Age | Cond | RT (ms) | ACC | a | Ter (ms) | z | v |
|---|---|---|---|---|---|---|---|---|
| Control | Young | PMI | 812 (23) | 0.86 (0.01) | 1.3 (0.05) | 525 (12) | 0.54 (0.01) | |
| OTI | 783 (16) | 0.87 (0.01) | 1.29 (0.05) | 518 (7) | 0.51 (0.02) | |||
| Older | PMI | 1240 (70) | 0.9 (0.01) | 1.92 (0.08) | 660 (24) | 0.52 (0.01) | ||
| OTI | 1215 (59) | 0.9 (0.01) | 1.93 (0.09) | 662 (21) | 0.56 (0.02) | |||
| PM | Young | PMI | 1000 (27) | 0.87 (0.01) | 1.73 (0.05) | 563 (13) | 0.56 (0.01) | 1.84 (.11) |
| OTI | 905 (27) | 0.87 (0.01) | 1.56 (0.06) | 543 (9) | 0.52 (0.01) | 1.92 (.09) | ||
| Older | PMI | 1610 (88) | 0.91 (0.01) | 2.65 (0.11) | 716 (31) | 0.54 (0.02) | 1.59 (.12) | |
| OTI | 1500 (76) | 0.9 (0.01) | 2.53 (0.11) | 663 (25) | 0.55 (0.01) | 1.67 (.11) | ||
| Cost | Young | PMI | 188 (18) | 0.012 (0.006) | 0.43 (0.05) | 38 (8) | 0.02 (0.01) | |
| OTI | 122 (18) | 0.004 (0.007) | 0.27 (0.05) | 25 (8) | 0.01 (0.01) | |||
| Older | PMI | 369 (35) | 0.011 (0.007) | 0.73 (0.07) | 56 (17) | 0.02 (0.01) | ||
| OTI | 286 (47) | 0.001 (0.006) | 0.6 (0.09) | 1 (15) | −0.01 (0.01) |
Note.
*
The selected diffusion model variant (the model with the lowest AIC index, described in the Method section) did not allow drift rates to vary across blocks, and therefore this value reflects drift rates across the entire ongoing task (i.e., there are not separate values for control and PM blocks)
RT reaction time, ms milliseconds, ACC accuracy, a boundary separation, Ter nondecision time, z starting point, v drift rate