FIGURE 1.

(A) Emotion-discrimination-task. The trial started with the presentation of a red circle at the center of the touchscreen. Subjects had to touch and hold it for a variable delay. Then a peripheral target appeared, followed by a picture depicting one of three expressions. Participants were instructed to reach and hold the peripheral target when the face expressed an emotion (fear or happiness) and to refrain from moving if the face had a neutral expression. All experimental conditions were randomized; (B) Gender-discrimination-task. The course of the events was the same described for the previous task; however, in this instance, participants were required to move when they saw a woman and not to move when they saw a man or vice versa. The order of administration of the two tasks was counterbalanced across subjects.