FIGURE 1.

The figure shows different trial sequences of the Simon task with a dimensional repetition (A) and a dimensional change (B). Depicted are different trial types (trial N) following a horizontal corresponding trial (trial N-1). For each trial sequence, degree of event file overlap (complete repetition, partial repetition, complete change) and S–R correspondence sequence (c = corresponding, n = non-corresponding, small letters indicating previous trial characteristics, capital letters current trial characteristics) are indicated. In this example, the upper response key was assigned to the X stimulus and the left hand, whereas the lower key was assigned to the S stimulus and the right hand. The correct response key for each trial is colored in gray.