Methods for providing optimized neurostimulation

A method for providing optimized neurostimulation, comprising:

• providing an electrode array comprising a plurality of electrodes;
• grouping the plurality of electrodes into a first group including at least one electrode configured to generate a first waveform, a second group including at least one electrode configured to generate a second waveform, and a third group including at least one electrode with a fixed potential, wherein the third group is located between the first group and the second group;
• and
• activating the electrode array to generate at least one of the first waveform and the second waveform.