Vector analysis of auditory evoked potential in the brain stem

The planar vectocardiographic method was applied to auditory evoked potential in the brain stem (BAEP). It was assumed that the derivations CZ, A1 and A2 from an Einthoven triangle. BAEP were averaged simultaneously on three channels. It was assumed that if CZ were linked to A1 = lead I, CZ to A2 = II and A1 to A2 = III, then I + III = III - II = 0 according to the Einthoven rule. Calculations performed in the averager memory confirmed this hypothesis. The planar vectocardiography method was then applied to BAEP with success. Its advantages are high reliability and amenability to computer analysis.