Figure 6. Excitation frequency decreases as fibroblasts density increases for all fibroblast island sizes (A - 2×2, B - 4×4, C - 6×6).

The density (10%, 25% or 50%) for 5 fibroblast distributions (black diamonds) with G_gap = 3 nS. The dashed gray line denotes the CL control value (302 ms).