Tomographic Electroencephalography/Magnetoencephalography

Journal of Neuroimaging - Tập 5 Số 1 - Trang 35-45 - 1995
Robert W. Thatcher1
1Neurology and Medical Research Services, Veterans Administration Medical Center, Bay Pines, FL, Department of Neurology and Radiology, University of South Florida College of Medicine, Tampa, FL

Tóm tắt

New developments in multimodal registration of electroencephalography (EEG), magnetic resonance imaging (MRI), and pOSitron emission tomography (PET) are presented as a method to create a tomographic EEG. Three‐dimensional information about the x,y,z location of the sources of event‐related potentials is corroborated through the use of experimental design and coregistration with MRI and PET. Once the three‐dimension allocation of event‐related potential dipole sources IS identified and corroborated, pseudoinverse procedures are used to derive a new EEG voltage sequence from each of the dipoles Each denved EEG dipole time series is analogous to recording EEG from a deeply implanted electrode and constitutes a four‐dimensional tomographic EEG (ie, three‐dimensional space plus time) EEG coherence and phase analyses are then performed on the dipole‐derived time series to study the temporal and spatial dynamics of neural network switching during voluntary finger movements. The purpose of this article is to demonstrate a new method to exploit the time domain dynamics of neural network switching in behaving human subjects.

Từ khóa


Tài liệu tham khảo

RWThatcher MHallett TZeffiro et al. eds. Functional neuroimaging: technical foundations. Orlando FL: Academic 1444

RWThatcher CToro MEPflieger MHallett Human neural network dynamics using multimodal registration of EEG PET and MRI. In: Thatcher RW Hallett M. Zeffiro T et al. eds. Functional neuroimaging: technical foundations. Orlando FL: Academic 1994; 269-278

CToro BWang TAZeffiro et al. Movement related cortical potentials source analysis and PET/MRI correlation. In: Thatcher RW Hallett M. Zeffiro T et al. eds. Functional neuroimaging: technical foundations. Orlando FL: Academic 1944: 259-267

BWang CToro EMWasserman et al. Multimodal integration of electrophysiological data and brain images: EEG MEG TMS MRI and PET. In: Thatcher RW Hallett M leffiro T et al eds. Functional neuroimaging: technical foundations. Orlando Fl: Academic 1994: 251-257

Simpson GV, 1993, Spatial imaging and temporal dynamics of visual brain-activation through integration of electrophysiological (ERP) and hemodynamic (EVIRI) measures, Soc Neurosci, 19, 1604

GVSimpson JJFoxe HGVaughan et al. Integration of electrophysiological source analyses MRI and animal models in the study of visual processing and attention. Electroencephalogr Clin Neurophysiol (in press)

PNunez Electrical fields of the brain. New York: Oxford University Press 1981

AGevins BCutillo DDuRousseau et al. High-resolution evoked potential technology for imaging neural networks of cognition. In: Thatcher RW Hallett M Zeffiro T et al eds. Functional neuroimaging: technical foundations. Orlando FL: Academic 1994: 223-232

10.1097/00004728-198901000-00004

10.1038/338334a0

10.1007/BF00202899

10.1016/0013-4694(93)90017-P

ASGevins SLBressler Functional topography of the human brain. In: Pfurtscheller G ed. Functional brain imaging. Berlin: Hans Huber 1988: 99-116

10.1007/BF01132771

10.1007/BF01129037

10.1109/10.142641

10.1016/0013-4694(93)90065-4

10.1016/0013-4694(93)90004-F

RWThatcher CToro MHallett Neural network switching during voluntary finger movements. In: International Federation of Clinical Electroencephalography (Vancouver) vol 49. 1993:233 (Abstract)

RWThatcher CToro MHallett Multimodal registration of EEG PET and MRI: analyses of neural network switching. In: Proceedings of the Society of Magnetic Resonance in Medicine (Berkeley CA): functional MRI of the brain. Arlington VA June 17-19 1993: 171-181

10.1017/S0305004100030401

10.1016/0168-5597(89)90052-X

10.1016/0168-5597(89)90020-8

RKOtnes EEnochson Applied time series analysis. New York: Wiley 1988

GPfurtscheller JSteffan HMaresch ERD mapping and functional topography: temporal and spatial aspects. In: Pfurtscheller G ed. Functional brain imaging. Berlin: Hans Huber 1986: 117-130

10.1016/0013-4694(86)90107-0

10.1126/science.3576224

10.1016/0278-2626(92)90060-Y

10.1073/pnas.89.12.5670

Thông tin
Thông tin xuất bản

Journal of Neuroimaging

Tập 5 Số 1

35-45

Thông tin tác giả