title: Dynamic neuroimaging of brain function.
abstract: To fully characterize the brain processes underlying sensorimotor and cognitive function, the spatial distribution of active regions, their interconnected regions must be measured. We describe methods for imaging brain sources from surface-recorded EEG and magnetoencephalographic data, called electromagnetic source imaging (EMSI). EMSI provides brain source locations within the common framework of magnetic resonance (MR) images of brain anatomy. This allows integration of data from other functional brain imaging methods, like positron emission tomography and functional MR imaging, which can improve the accuracy of EMSI localization. EMSI also provides submillisecond temporal resolution of the dynamic processes within brain systems. Examples are given of applications to visual perceptual and attentional studies.
authors.affiliation: Department of Neurology, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
authors.forename: G V
authors.initials: GV
authors.lastname: Simpson
authors.forename: M E
authors.initials: ME
authors.lastname: Pflieger
authors.forename: J J
authors.initials: JJ
authors.lastname: Foxe
authors.forename: S P
authors.initials: SP
authors.lastname: Ahlfors
authors.forename: H G
authors.initials: HG
authors.lastname: Vaughan
authors.forename: J
authors.initials: J
authors.lastname: Hrabe
authors.forename: R J
authors.initials: RJ
authors.lastname: Ilmoniemi
authors.forename: G
authors.initials: G
authors.lastname: Lantos
mesh_terms: D001143:Arousal / Q000502:physiology*; D001288:Attention / Q000502:physiology*; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods*; D002540:Cerebral Cortex / Q000502:physiology; D003952:Diagnostic Imaging / Q000379:methods*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D014796:Visual Perception / Q000502:physiology