Figure 2.

Tasks. (A) Saccades trials in the simple protocol and (B) in the complex protocol. As soon as the peripheral target appeared, subjects must look at it (pro-saccade) if the cue is blue or at the opposite location (anti-saccade) if the cue is pink. (C) Visual Search Pop Out and Serial trials. Subjects must report whether a target (a plain circle or a circle with a bar against distractors of the other category) was present or not by pressing the right or left arrow key. (D) Continuous performance task (CPT). The subject must report targets by releasing the space-bar key and refrain from answering when distractors are presented. Informative feedback about precision and speed was provided in all three tasks.