Figure 1

Schematic of the social flanker task. (a–c) Participants were presented with arrays of five-letters. There were 16 different letter combinations (see d). Participants were instructed to perform a target response when target letters were presented in the middle of the array. (a) Correct reactions were followed by feedback depicting a 0.05 € coin (1.4° diameter) and (b) errors were followed a red no-go sign (1.4° diameter). To differentiate between feedback relevant for the participant and feedback stimuli relevant for “the peer”, participant’s feedback was presented within a blue frame (see a,b). The peer’s feedback was presented within a yellow frame (see c).