Centorrino, Samuele; Djemaï, Elodie; Hopfensitz, Astrid; … - Université Paris-Dauphine (Paris IX) - 2015
We test the hypothesis that smiles perceived as honest serve as a signal that has evolved to induce cooperation in situations requiring mutual trust. Potential trustees (84 participants from Toulouse, France) made two video clips averaging around 15 seconds for viewing by potential senders...