FIGURE 1.

Experimental design. (a) In the current version of the Alternation Serial Reaction Time (ASRT) task, participants saw an arrow in the middle of the screen. The arrows' presentation followed an eight‐element sequence, in which pattern and random (R) elements alternate. Regularity of the sequence (e.g., the task rule) has been marked by black color for pattern and red color for random elements. Numbers denote the four possible directions of the arrows (1—left, 2—up, 3—down, 4—right). These directions correspond to the configuration of the response pad as presented in the top right corner of the figure. Timing of the task is presented below the thick black arrow (timeline). (b) Some series of consecutive elements (triplets) occur frequently in the task than others. High‐frequency triplets could either end with pattern or with random elements, while low‐frequency triplets always end with a random element