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. 2014 Apr 15;106(8):1811–1821. doi: 10.1016/j.bpj.2014.02.030

Figure 6.

Figure 6

IK1 levels and drift direction. (A) IK1 I/V curves for normal (control) and other levels of IK1 density. Steady-state APs induced at 2 Hz are illustrated. (B) Rotation frequency in LA homogenous model for each IK1 density level. (C) Average peak INa availability profiles show drift toward lower excitability (arrows) in a model with Condition I. (D) Analysis of MDP and dV/dtmax for each profile at single pixels in the LA and PV (4 mm from boundaries) under Condition I. To see this figure in color, go online.