Fig. 3.
(A) Stimuli in Experiment 2. Red dots moved in one of four possible directions (15°, 65°, 115°, 165°). Additional yellow dots (not shown) were added only in the irrelevant-dots condition. (B) Participants were asked to use a response pad to indicate the direction of the moving dots by pressing the corresponding button. A direct mapping (level 1) was used for coherence and irrelevant-dots conditions, while all 3 rules were used in the rule difficulty condition.