Figure 8
Access to previously unexplored system states. (a) Embedding of the responses to traditional perturbations +/− T in normalized, non-dimensionalized, averaged coordinates (as before, the displayed trajectories start at the perturbation step marked by a dot, corresponding to n = 0 in the time series). The shaded areas correspond to the region in phase space where the system is left at the perturbation step (center: mean across subjects; radii: standard deviation across subjects). (b) Embedding of all perturbations. The novel perturbations probe the system in new ways by setting initial conditions (i.e. at the time of perturbation) never tested before; this is evidenced by the areas corresponding to novel perturbations only partially overlapping with the traditional perturbation.
