Data analysis
Sample uniformity between the three experimental conditions with respect to gender and age was checked by performing, respectively, a chi-square test and a one-way ANOVA. Participants’ familiarity with the situation portrayed in the videoclips (item #1 Additional file Two measurements checked our manipulation: the average score of the two items of the questionnaire about the participant’s perception of the resident’s feeling (Additional file Two measurements of Finally, For all comparisons, the level of significance was set at 