FIGURE 2.

Movement vector time series (top) and cross-wavelet coherence (bottom) for a dancer participant coordinated with the confederate (left) and a non-dancer participant coordinated with the confederate (right). Both time series are from performances of Sequence 1. The length of the time series is 50 s (x-axis). The full movement phrase, phrase, phrase, and ¹/₈ phrase time scales were 13.25, 6.63, 3.31, and 1.66 s (y-axis periods for cross-wavelet coherence). Coherence magnitude and relative phase at a given time scale and a point in time is denoted by color and the orientation of the arrow (pointing right: inphase; left: antiphase; down: confederate leading by 90°), respectively. The average of these values at a given time scale were extracted from these plots to perform the time scale coherence and relative phase analyses.