Figure 1.

Representation of a single trial of the Effort Expenditure for Rewards Task (EEfRT). a) Participants are shown information about the reward magnitude of the high-effort task and the probability of receiving the reward for that trial. b) Participants made button presses to complete the chosen task for 7 sec (low-effort task) or 21 sec (high-effort task). c) Participants received feedback indicating whether and how much reward was received for that trial.