Fig. 8.

Variables and currents in the BOCF phenomenological model. The model is simulated using the human endocardial cell parameter set from Bueno-Orovio et al. (2008). (A) shows the behaviour of the four model variables u (black), v (red), w (blue), and s (green), when paced at a cycle length of 1000 ms. (B) and (C) show the behaviour of the total current (black), and the individual currents J_fi (red), J_si (blue), and J_so (green), when the cell is paced at 1000 ms. The time axes in (B) and (C) have been shortened to show structure of the currents, with (B) showing the whole AP and (C) showing the upstroke only. (For interpretation of the references to colour in this figure caption, the reader is referred to the web version of this paper.)