fig 2.

Overview of the test, imaging, and data analysis. With this task paradigm, easy and difficult planning and counting are performed in blocks. Every block lasts 36 s, including a 4-s instruction. A total of nine blocks were performed during the test. A total of 82 images were obtained, including those of a dummy before the test started. To account for the hemodynamic response delay, a 4-s delay in the analysis was used. The images obtained during the instruction (accounting for the hemodynamic response delay) were not used for further calculations. The resulting 71 images were used for the analysis (24 obtained during the difficult planning problems, 24 obtained during the easy planning problems, and 23 obtained during the control stage)