Devices for delivering non-invasive neuromodulation to a patient

A mouthpiece for providing non-invasive neuromodulation to a patient, the mouthpiece comprising:

• an elongated housing having an anterior region and a posterior region, the elongated housing having a non-planar exterior top surface, the anterior region and the posterior region having approximately equal densities with the posterior region having a greater volume than the anterior region such that the product of the density of the posterior region and the volume of the posterior region is greater than the product of the density of the anterior region and the volume of the anterior region, causing a center of gravity to be located within the posterior region;
• a positioning pad attached to the top surface of the housing for minimizing contact between a patient's upper teeth and the exterior top surface of the elongated housing;
• and
• a printed circuit board mounted to a bottom portion of the elongated housing, the printed circuit board having a plurality of electrodes for delivering subcutaneous local electrical stimulation to the patient's tongue.