Nunez P L
Electroencephalogr Clin Neurophysiol. 1986 Jan;63(1):75-82. doi: 10.1016/0013-4694(86)90065-9.
The theoretical basis for magnetic field recording (MEG) methods is briefly summarized. Lines of constant radial magnetic field on a spherical surface, which are typically used in MEG applications to locate sources, are shown for various multiple dipole sources. It is shown that the usual localization methods are subject to relatively large error if only one additional dipole is present. New methods to improve spatial resolution are discussed.
简要总结了磁场记录（MEG）方法的理论基础。给出了球面上恒定径向磁场线，这些线通常用于MEG应用中来定位源，展示了各种多偶极源的情况。结果表明，如果仅存在一个额外偶极，通常的定位方法会有相对较大的误差。讨论了提高空间分辨率的新方法。
