Stimulus sequences used in experiment 1a.

The composition of four different predetermined sequences A-D (PowerPoint presentations), containing 10 trials each, used in experiment 1a. For each trial, the positive stimulus that served as sample and corresponding stimulus and its position are shown. The negative stimulus that served as distracting stimulus is also shown for each trial. P = positive stimulus; N = negative stimulus; + = cross; o = circle; R = right; L = left.