How Hyperpolarization and the Recovery of Excitability Affect Propagation through a Virtual Anode in the Heart

<table>(a) Propagation speed and (b) arrival time, for an S2 stimulus applied at <svg height="14.6" id="M89" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 53.9375 14.6" width="53.9375" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝑡</tspan>
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</svg> ms with an S2 strength of 10 (gray), 20 (green), and 30 (red) times threshold. The speed and arrival time of the S1 action potential (blue) are shown for comparison.</table>

Computational and Mathematical Methods in Medicine

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Figure 5

Figure 5: How Hyperpolarization and the Recovery of Excitability Affect Propagation through a Virtual Anode in the Heart 