A method, system, and an apparatus are provided for providing an electrical neurostimulation therapyto a patient. The method comprises generating an electrical biasing signal definedby a plurality of parameters, at least one of which comprises a random value withina defined range, and applying the electrical biasing signal to a neural structureto bias an intrinsic neural signal on the structure. Neurostimulators and neurostimulationsystems are provided for generating such a biasing signal and applying the signalto the neural structure, and include a stimulus generator for generating thesignal, one or more electrodes for delivering the signal to a neural structure,and a controller for applying the signal to the electrodes.
