Williamson S J, Kaufman L
Department of Physics, New York University, NY 10003.
Brain Topogr. 1990 Fall;3(1):113-27. doi: 10.1007/BF01128868.
Magnetoencephalography has developed during the past twenty years with a different overall emphasis than found in electroencephalography. These differences are explored in selected applications. One dominant feature of magnetic studies is a quantitative approach to characterize the strength of neuronal activity, as well as its position within the brain. There is evidence from recent analyses of current source-density measurements in animal models that the deduced peak neuronal strength can also be interpreted in terms of the spatial extent of activity across cortex.
在过去二十年中，脑磁图技术得到了发展，其整体侧重点与脑电图技术有所不同。本文将在特定应用中探讨这些差异。磁学研究的一个主要特点是采用定量方法来表征神经元活动的强度及其在大脑中的位置。最近对动物模型中电流源密度测量的分析表明，推导得出的神经元峰值强度也可以根据整个皮层活动的空间范围来解释。
