FIGURE 3.

Behavioral coordination in human dyads (A), human interaction with a Human Dynamic Clamp (B), ensemble of people (C) and to hint at generality, in fireflies flashing [white circles, (D) the thick brown trace indicates the collective behavior of their large colony]. Relative phase trajectories from (A–C) are chosen to illustrate an alternation of dwells and escapes that is typical of metastability. Attracting tendencies are found toward inphase and antiphase [see histograms in (A–C), with count identified with the symbol #, showing relative phase distribution for the most strongly coupled conditions in their respective paradigms, see original references for details and for examples of weaker organization].