Figure 1
Schematic illustration of probabilities of task A, B and C in trial n when task A has been presented in trial n-1. In the depicted exemplary experimental condition, the long pre-target interval predicts a task repetition, whereas the short pre-target interval predicts a task switch.
Figure 2
Schematic illustration of the experimental between-subject condition “interval of expected repetition”: Whereas one half of participants (group 1) expected a task repetition to occur frequently after 500 ms in trial n, the other half of participants (group 2) expected a task repetition to occur frequently after 1500 ms trial n.
Figure 3
Mean reaction times (RTs in ms; lines) and percentages of errors (PEs in %; bars), depending on predictability of interval – transition combination, are displayed separately for task transition and the between-subject condition “interval of expected task repetition” (500 ms vs. 1500 ms). Error bars represent 1 standard error of the mean.