Evolution of neuromagnetic topographic mapping.
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.
Williamson
S J
SJ
Department of Physics, New York University, NY 10003.
Kaufman
L
L
D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D004574:Electromagnetic Fields; D006801:Humans; D015225:Magnetoencephalography