1. A method of providing an electrical stimulation therapy for a patient for a neuronal region of interest (ROI), the method comprising: positioning an electrode proximate to the neuronal ROI, wherein the electrode is electrically coupled to a neurostimulation (NS) system; delivering, from the NS system, a stimulation waveform to the electrode based on NS parameters to stimulate nerve tissue of the patient, wherein (1) the stimulation waveform is generated by producing a series of pulses controlled by a pseudo random binary sequence and (2) each respective pulse of the stimulation waveform is generated to exhibit a zero pulse amplitude or a maximum pulse amplitude according to a corresponding bit in the pseudo random binary sequence; measuring an evoked potential waveform resulting from the stimulation waveform; identifying a neuronal system response for the neuronal ROI based on the pseudo random binary sequence and the evoked potential; determining a carry over window of a therapeutic effect based on the neuronal system response; and programming the NS system to deliver an electrical stimulation therapy including a duty cycle defined by the determined carry over window.