Relative cluster size versus connectivity, for a selection of initial perturbations. All points show mean ± s.e.m. of 100 simulations, for a lattice size of 25 × 25. The four lines represent initial perturbations of 1, 1.5, 2 and 2.5 on a graded scale from dark to light. Perturbations of 1.5, 2 and 2.5 are shown in the same shade due to their close proximity. (a) Resting membrane potentials and capacitances sampled from day 15 distribution; (b) resting membrane potentials sampled from day 15 distribution, cell capacitances sampled from day 18 distribution; (c) resting membrane potentials sampled from day 18 distribution, cell capacitances sampled from day 15 distribution and (d) resting membrane potentials and capacitances sampled from day 18 distribution.