Patent ID: 8494627

Claim:
A method performed by data processing apparatus, the method comprising: forming a first array of electrodes; optimizing a plurality of electrode parameters within the first array of electrodes to achieve a desired physiological response; identifying one or more electrodes within the optimized first array that have relatively low current compared to the remaining electrodes in the first array; identifying two or more electrodes within the optimized first array that have relatively equal current with opposite polarity; forming a second array of electrodes based on the first array of electrodes by at least one of removing the identified low current electrodes from the first array or electrically connecting the identified two or more electrodes with relatively equal current and opposite polarity to the same current source, wherein the number of electrodes in the second array is less than the number of electrodes in the first array; optimizing a plurality of electrode parameters with the second array of electrodes to achieve a desired physiological response.