A motor-deficit-therapeutic method (for treatment of a patient who has hemiparesis) includes: providing, to the patient afflicted with a hemiparesis, a neurostimulator configured to stimulate a vagus nerve of the patient using electrical, magnetic, optical, acoustic or mechanical stimulation; and initiating stimulation of the vagus nerve by the neurostimulator so that at least a portion of the stimulation occurs at least during performance by the patient of a motor therapy session which is hemiparesis-therapeutic, thereby improving the patient's hemiparesis.