Blood Volume Pulse (BVP) Biofeedback (or scientifically Cephalic Vasomotor Biofeedback) is a biofeedback for the purpose of anti-migraine treatment. The BVP sensor is placed over the left or right temple to monitor the temporal artery. The patients learn to control the vasomotoric action of their cephalic blood vessels. As changes occur in the blood volume of the temporal artery, this is reflect... Read More...