1 TITLE: Motor coordination and strategic cooperation in joint action 1 2 3 AUTHOR NAMES AND AFFILIATIONS: 4 Solène Le Bars (solene_lb@outlook.fr) a, c 5 Sacha Bourgeois-Gironde (sbgironde@gmail.com) a, c 6 Valentin Wyart (valentin.wyart@ens.fr) b, c 7 Izel Sari (izeldilan@gmail.com) a, c 8 Elisabeth Pacherie (elisabeth.pacherie@ens.fr) a, c * 9 Valérian Chambon (valerian.chambon@ens.fr) a, c* 10 11 a Institut Jean Nicod, Ecole Normale Supérieure, CNRS, EHESS 12 b Laboratoire de Neurosciences Cognitives Computationnelles, Ecole Normale 13 Supérieure, Inserm 14 c Département d’Etudes Cognitives, Ecole Normale Supérieure, PSL University, 15 75005 Paris, France 16 * These authors share senior authorship. 17 18 CORRESPONDING AUTHORS: 19 Solène Le Bars (solene_lb@outlook.fr) 20 Valerian Chambon (valerian.chambon@gmail.com) 21 Institut Jean Nicod 22 29, rue d’Ulm, 75005, Paris, France 23 24