1. A method for stimulating neurological tissue based upon a genetic algorithm coupled to a computational model of extracellular stimulation of a mammalian myelinated axon, the method comprising: applying a stimulation waveform optimized for energy efficiency derived by: (i) generating a population of offspring stimulation waveforms by mating a population of parent stimulation waveforms; (ii) assessing fitness of individual offspring stimulation waveforms generated by the prescribed genetic algorithm in terms of energy efficiency and selecting as a new population of parent stimulation waveforms current offspring stimulation waveforms having highest energy efficiency values; and (iii) repeating steps (i) and (ii) until predetermined termination criteria are met.