1. A method of providing therapy to a patient, comprising: conveying an electrical pulsed waveform between at least one caudal electrode and spinal cord tissue, thereby evoking action potentials that are orthodromically propagated along dorsal column (DC) neural fibers and evoking action potentials that are antidromically propagated along the DC neural fibers; and conveying electrical energy between at least one rostral electrode and the spinal cord tissue, thereby modulating times that the action potentials orthodromically propagated along the DC neural fibers arrive at the brain of the patient.