FIGURE 1.

The schematic of the experiments. In all experiments, participants received instructions on how long the task sessions would take, which were sometimes false and sometimes true. They then underwent one or two sessions of N-back tasks, whose durations ranged from 3 to 7 min. In Experiments 1a, 1b, and 2, participants completed a questionnaire that asked their passage of time judgment (POTJ) and affective states. In Experiment 3, to remove the post hoc component on POTJ, participants were unexpectedly asked to rate their POTJ during the 2-back task sessions.