A SENSORY CORTICAL REPRESENTATION OF THE VAGUS NERVE: WITH A NOTE ON THE EFFECTS OF LOW BLOOD PRESSURE ON THE CORTICAL ELECTROGRAM

Abstract
Stimulation of the central end of either vagus nerve of the cat produced alteration of the electrical potentials on the orbital surface of the frontal lobes of the cerebrum and in no other cortical area. It was shown also that the cortical electrogram is very sensitive to alterations in blood pressure which may vary both its amplitude and form. The effects of low blood pressure are doubtless due to anoxemia since they are practically identical with those produced by cessation of artificial respiration.