Multipole Model of the Observed Cerebral Cortex Magnetic Field

摘要

A Multipole model of magnetic field sources in the cerebral cortex was developed as an expansion of Grynszpan's single dipole in a conducting sphere model. Both computer simulation and actual conducting sphere experiments were used to generate field plots in five separate dipole configurations. These include one case of a single dipole, three cases of three dipoles on a single radial, and one case of two dipoles on independent radials. The results show that dipoles oriented on a single radial do not produce multiple flux peaks, but rather a twisted version of the single dipole field. Sufficiently distant dipoles on independent radials, however, do produce multiple peaks. The largest field distortions occurred when nonconducting masses were in close proximity to the active dipoles.