Hari R, Ilmoniemi R J
Crit Rev Biomed Eng. 1986;14(2):93-126.
A critical presentation is given about the state-of-the-art of neuromagnetism, the study of neural functions by the measurement of magnetic fields. First, an introduction is given about the neural origin of electromagnetic fields. The forward and inverse problems are then studied. The forward problem can be stated as follows: given electrical currents in the brain, calculate the magnetic field. Correspondingly, the inverse problem is to calculate currents in the brain from the magnetic field measured outside the head. The instrumentation necessary for successful neuromagnetic measurements is discussed, and the emphasis is on new developments. The review of experimental neuromagnetic results discusses studies on spontaneous cerebral magnetic fields in normal subjects and in epileptic patients. Furthermore, evoked-field studies of the various sensory modalities as well as studies of event-related fields are reviewed. The relevance of various efforts in neuromagnetism and prospects for the future are discussed.
关于神经磁学（通过测量磁场来研究神经功能）的最新进展进行了一场重要的报告。首先，介绍了电磁场的神经起源。接着研究了正向问题和逆向问题。正向问题可以表述如下：给定大脑中的电流，计算磁场。相应地，逆向问题是根据在头部外部测量到的磁场来计算大脑中的电流。讨论了成功进行神经磁测量所需的仪器设备，重点是新进展。对实验性神经磁学结果的综述讨论了正常受试者和癫痫患者的自发性脑磁场研究。此外，还综述了各种感觉模态的诱发场研究以及事件相关场的研究。讨论了神经磁学中各项工作的相关性以及未来的前景。
