FIGURE 1.

The social interaction task. Each trial included two parts: the display of a social interaction scene composed of three sentences alternated with three vignettes and an affect rating task. A variable duration intertrial interval was presented in between trials. The participant was asked to identify himself/herself with the gray-haired person, the receiver, who interacted with another person, the agent. Three social interaction conditions were presented: two helping conditions, practical help (A), effort appreciation (B), and a non-helping control condition (C).