Co-emergence processes in cooperation between humans

We analyzed the co-emergence process on the cooperative walk between two humans. As result, we found a cyclic process based on the following two control processes. One process is the realization of footsteps´ coherence between the cooperative walkers. The other is the control of the footsteps´ coherence by the mutual relations with the fluctuations of the arms´ swing, connected with the attention. Additionally we found that the arms´ fluctuations take flexible synchronizations between the cooperative walkers. These results suggest that the synchronization of the cyclic process realize the co-emergence of the cooperative walk flexibly.