Figure 3.

Restitution portrait from one animal when pacing and recording from the mid-ventricle. The RP contains one dynamic RC (thin line) composed of steady-state points (○) from each BCL₂. At each BCL₂ there is an S1-S2 RC (thick line and ×, +), and a short-term memory response (●). At the shortest BCL₂, the S1-S2 RC has only two points because BCL_S did not elicit an action potential. At each BCL₂, all three restitution responses theoretically intersect at the steady-state point because this point is contained in each of the responses.