Fig. 1.

Emotional face recognition 2-back task. 4 identities (2 females, 2 males) with 4 expressions (angry, happy, fearful and neutral) were presented. Each face was displayed for 2000 ms followed by a 500 ms gray crosshair fixation. Five 2500 ms jittered gray crosshair fixations were randomly inserted. Participants were instructed to respond with their right index finger if the current stimulus matched the stimulus presented two trials prior (Y), and with their right middle finger if the current stimulus was different (N).