A system includes a stimulation generator, a sensing module, and a processing module. The stimulation generator is configured to generate electrical stimulation. The sensing module is configured to sense electrical physiological signals generated by a patient via a plurality of electrodes. The processing module is configured to determine a power value for each of the plurality of electrodes. Each power value indicates the power of the electrical physiological signals within a frequency band. The processing module is further configured to control the delivery of electrical stimulation to the patient based on the power values.
