To switch or to repeat? Commonalities and differences in the electrophysiological correlates of preparation for voluntary and forced task choices.

When switching tasks in the laboratory, either the experimenter or the participant can decide which task comes next. So far, this kind of forced and voluntary task switching is usually investigated in isolation. However, in our everyday life, switching between different tasks and goals often depends both on current situational demands and on our intentions.

Keep flexible-Keep switching? Boundary conditions of the influence of forced task switching on voluntary task switching.

Frequent forced switching between tasks has been shown to reduce switch costs and increase voluntary switch rates. So far, however, the boundary conditions of the influence of forced task switching on voluntary task switching are unknown. Thus, the present study was aimed to test different aspects of generalizability (across items, tasks, and time) of switching-induced flexibility established in forced-choice trials on voluntary switching in free-choice trials.

Investigating anticipatory processes during sequentially changing reward prospect: An ERP study.

Performance-contingent reward prospect modulates the stability-flexibility balance in voluntary task switching. High reward prospect typically increases stability, indicated by a low voluntary switch rate (VSR). But this effect depends on the immediate reward history: Only when a high reward repeats (reward remains high), stability is increased.

The role of objective and subjective effort costs in voluntary task choice.

Human beings tend to avoid effort, if a less effortful option is equally rewarding. However, and in sharp contrast to this claim, we repeatedly found that (a subset of) participants deliberately choose the more difficult of two tasks in a voluntary task switching (VTS) paradigm even though avoidance of the difficult task was allowed (Jurczyk et al., Motivation Science 5:295-313, 2019).