Figure 1.

Task Stimuli. For the visuospatial planning condition, participants performed the Tower of London task. In this condition participants saw the goal configuration for 5 seconds, then the start configuration for a maximum of 15 seconds, and determined the minimum number of moves to match the start with the goal configuration. Participants then indicated the minimum number of moves to solve the puzzle. In the autobiographical planning task condition, participants were presented with a goal state, followed by a combination of two steps and an obstacle related to that goal printed in the discs. Participants integrated the steps and obstacle into an authentic and coherent personal plan to reach that goal. In this example, participants interpreted the goal state “Freedom from Debt” for 5 seconds. For up to 15 seconds, participants integrated the steps “Good job”, “Save Money” as well as the obstacle “Have Fun” into a plan to be free of debt. Next, participants rated the level of detail in their plan. In the Count condition, participants were informed they would count vowels, then random letter sequences appeared in the discs. Next, participants indicated the number of vowels counted. If participants completed any of the tasks prior to 15 seconds, a button was pressed and the screen advanced to the rating screen. Remaining time was added to the inter-trial interval.