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. Author manuscript; available in PMC: 2009 Sep 1.
Published in final edited form as: Prog Biophys Mol Biol. 2008 May 29;98(1):24–37. doi: 10.1016/j.pbiomolbio.2008.05.002

Figure 9.

Figure 9

Modified restitution curves for the original CM and the NMf. A. Modifications to currents in the original NMf can produce a steeper steady-state restitution curve over a broader range of DIs. In addition, these modifications remove the extremely short APDs at extremely short DIs and eliminate the biphasic region of the steady-state restitution curve. Although the restitution curve is steepened, its slope is only greater than one for DIs smaller than 45ms. See text for details. B. Modifications to currents in the original CM can reverse the dependence of S1–S2 restitution curves on S1 CL at short DIs. In the present arrangement, APDs decrease with decreasing S1 CL as well as with decreasing DI.