Table 2.
Task switching under certainty/uncertainty across the initial three trials of task runs.
| P-S cuing | C1 | FB1 | C2 | FB2 | C3 | FB3 |
|---|---|---|---|---|---|---|
| Task (2, 3 tasks) | D:1AC | E:1AC | ||||
| Transition (2 tasks) | D:1AC | E:1AC | ||||
| Transition (3 tasks) | D:2AC | E:2AC | (E:1AC) | |||
| F-B cuing | C/FB1 | C/FB2 | C/FB3 | |||
| Task (2, 3 tasks) | D:1AC | E:1AC | ||||
| Transition (2 tasks) | D:1AC | E:1AC | ||||
| Transition (3 tasks) | D:2AC | E:2AC | (E:1AC) |
Cx, task cue on trial x {x = 1 … 3}; FBx, feedback stimulus on trial x {x = 1 … 3}; C/FBx, hybrid cue/feedback stimulus on trial x {x = 1 … 3}; task (2,3 tasks), two- and three-task task cuing; transition (2 tasks), two-transition cuing; transition (3 tasks), three-task transition cuing; D:, task-set decision; E:, decision evaluation; 1AC, one-alternative choice; 2AC, two-alternative choice. Note that 2AC-decisions (D:2AC) occur exclusively on three-task transition cuing conditions. These uncertain task decisions can be evaluated (E:2AC) through FB1 on P-S cuing conditions and through C/FB2 on F-B cuing conditions. The bracketed terms [i.e., (E:1AC)] indicate that an additional set switch (of the D:1AC-type) is required in case that FB1 on P-S cuing conditions and C/FB2 on F-B cuing conditions reveal incorrect initial task-set choices.