Résumé
Group dynamics are more than a mere aggregation of individual behaviors; they emerge from the complex interplay interactions, which are deeply context dependent. Notably, a growing body of literature shows that enculturation introduces variations, as the rhythmic exposure since childhood shapes how individual synchronize their actions. Thereby, cultural environment molds group dynamics by influencing the most basic element of interpersonal interactions: individual perception-action dynamics. To examine this influence, we conducted two experiments to identify cross-cultural variations between French and Indian participants engaging in classical synchronization tasks. The results were analyzed through the lens of the dynamical system approach using forced oscillator models. In the first study, we documented the synchronization dynamics of both groups. The results revealed that while French participants exhibited negative mean asynchrony, Indian participants had a positive mean asynchrony. We proposed that this difference was partly due to a bigger over-estimation of the frequency of the rhythm for French participants than for Indian participants. In the second study, we explored the frequency adaptation mechanism supposed to be the cause of the observed over-estimation. Overall, our findings suggests that enculturation imprints down our most elementary temporal neural functions, thereby modifying our rhythmic behaviors and altering group dynamics.