Inequalities expressed as upper and lower bounds on coupling strength values define the allowable parameter space for the dynamic subcircuit.

These inequalities are obtained by algebraically manipulating the inequalities on the voltages of various populations from (Table 3) that define the APS for the dynamic subcircuit so that the inequalities are written explicitly in terms of coupling strength parameters. (UB = upper bound, LB = lower bound, abl = ablation, PI = pain inhibition, = does not fire above threshold levels).