Beyond topographic mapping: towards functional-anatomical imaging with 124-channel EEGs and 3-D MRIs

A functional-anatomical brain scanner that has a temporal resolution of less than a hundred milliseconds is needed to measure the neural substrate of higher cognitive functions in healthy people and neurological and psychiatric patients. Electrophysiological techniques have the requisite temporal re...

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Bibliographic Details
Published inBrain topography Vol. 3; no. 1; p. 53
Main Authors Gevins, A, Brickett, P, Costales, B, Le, J, Reutter, B
Format Journal Article
LanguageEnglish
Published United States 1990
Subjects
Brain - physiology
Brain Mapping
Electroencephalography
Humans
Magnetic Resonance Imaging - methods
Models, Neurological
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Summary:A functional-anatomical brain scanner that has a temporal resolution of less than a hundred milliseconds is needed to measure the neural substrate of higher cognitive functions in healthy people and neurological and psychiatric patients. Electrophysiological techniques have the requisite temporal resolution but their potential spatial resolution has been not realized. Here we briefly review progress in increasing the spatial detail of scalp-recorded EEGs and in registering this functional information with anatomical models of a person's brain. We describe methods and systems for 124-channel EEGs and magnetic resonance image (MRI) modeling, and present first results of the integration of equivalent-dipole EEG models of somatosensory stimulation with 3-D MRI brain models.
ISSN:0896-0267
DOI:10.1007/BF01128862