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. Author manuscript; available in PMC: 2013 May 5.
Published in final edited form as: Am J Physiol Heart Circ Physiol. 2005 Aug 19;290(1):H255–H263. doi: 10.1152/ajpheart.00668.2005

Fig. 3.

Fig. 3

Effects of increasing dynamical instability on spiral wave breakup transient time in multiple-wavelet fibrillation in 10 × 10-cm2 homogeneous tissue using the LR1 model. A: 2 action potential duration (APD) restitution curves and their slopes (inset). DI, diastolic interval. Black curve: Ḡsi = 0.052 mS/cm2; gray curve: Ḡsi = 0.06 mS/cm2, τd → 0.75τd, τf → 0.75τf (where Ḡsi is slow inward conductance and τd and τf represent activation and inactivation time constants, respectively). B: probability that Ts is longer than time T for APD restitution curves in A. C: Ts for the 2 cases in A. D: number of spiral wave tips vs. time for the 2 cases in A.