The present disclosure provides systems and methods utilizing a closed-loop neurostimulation apparatus. The apparatus includes at least one sensing electrode that monitors neurological activity of a subject and at least one stimulating electrode that applies stimulation pulses to the subject. An internal pulse generator is coupled to the at least one sensing electrode and the at least one stimulating electrode. The internal pulse generator causes the at least one stimulating electrode to apply stimulating pulses based at least in part on the monitored neurological activity.