Title: A multi-lab test of the facial feedback hypothesis by the Many Smiles Collaboration
Who conducted it: Nicholas A. Coles, David S. March, Fernando Marmolejo-Ramos, Jeff T. Larsen, Nwadiogo C. Arinze, Izuchukwu L. G. Ndukaihe, Megan L. Willis, Francesco Foroni, Niv Reggev, Aviv Mokady, Patrick S. Forscher, John F. Hunter, Gwenaël Kaminski, Elif Yüvrük, Aycan Kapucu, Tamás Nagy, Nandor Hajdu, Julian Tejada, Raquel M. K. Freitag, Danilo Zambrano, Bidisha Som, Balazs Aczel, Krystian Barzykowski, Sylwia Adamus, Katarzyna Filip, Yuki Yamada, Ayumi Ikeda, Daniel L. Eaves, Carmel A. Levitan, Sydney Leiweke, Michal Parzuchowski, Natalie Butcher, Gerit Pfuhl, Dana M. Basnight-Brown, José A. Hinojosa, Pedro R. Montoro, Lady G. Javela D, Kevin Vezirian, Hans IJzerman, Natalia Trujillo, Sarah D. Pressman, Pascal M. Gygax, Asil A. Özdoğru, Susana Ruiz-Fernandez, Phoebe C. Ellsworth, Lowell Gaertner, Fritz Strack, Marco Marozzi and Marco Tullio Liuzza
Published when and where: The study was published in 2022 in Nature Human Behaviour.
