Transient and steady-state spiral wave trajectories found using all variants of the NM and the CM-AF. The last trajectory shown for each variant represents steady-state at the end of the simulation except for the NMf-C2, which followed a cycloidal trajectory that changed direction whenever it hit the boundary. Thus, the longest nearly straight portion of the trajectory is shown after a rotation for visualization purposes. Scale bar represents 4 cm. Times for the three trajectories shown for each model are as follows. NM: 7.5–12.5 s, 30–35 s, 55–60 s. NMf: 1.5–4.5 s, 7.5–12.5 s, 55–60 s. NM-C: 1.2–5.2 s, 10.2–14.2 s, 50.2–60 s. NMf-C: 1.2–3.7 s, 4.2–14.2 s, 46.7–60 s. NMf-C2: 0.7–2.7 s, 3.2–6.2 s, 26.7–47.7 s. NM-AF: 6.7–9.2 s, 29.2–34.2 s, 85.2–90 s. NMf-AF: 1.2–4.2 s, 5.2–14.2 s, 80–90 s. CM-AF: 0.6–1.8 s, 15.8–16.8 s, 50–60 s. NM-X: 0.5–1.7 s, 5.2–15.2 s, 42.3–60 s. NMf-X: 0.5–1.6 s, 15.2–25.3 s, 35.3–60 s.