Spatial filter approach for evaluation of the surface laplacian of the electroencephalogram and magnetoencephalogram

Annals of Biomedical Engineering

Volumn 29, Issue 3, 2001, Pages 202-213

  Bradshaw, L A ^a   Wikswo, J P ^b  

^a VANDERBILT UNIVERSITY   (United States)

^b LIPSCOMB UNIVERSITY   (United States)

Author keywords

Brain electroencephalogram; Inverse problem; Magnetoencephalogram; Spatial resolution

Indexed keywords

ARTICLE; BIOLOGICAL MODEL; COMPUTER SIMULATION; ELECTROENCEPHALOGRAPHY; EVOKED RESPONSE; MAGNETOENCEPHALOGRAPHY; SIGNAL PROCESSING; STATISTICAL MODEL;

COMPUTER SIMULATION; ELECTROENCEPHALOGRAPHY; EVOKED POTENTIALS; MAGNETOENCEPHALOGRAPHY; MODELS, NEUROLOGICAL; MODELS, STATISTICAL; SIGNAL PROCESSING, COMPUTER-ASSISTED;

BRAIN; ELECTRIC FILTERS; LAPLACE TRANSFORMS; MAGNETOENCEPHALOGRAPHY; MATHEMATICAL TECHNIQUES; OPTICAL RESOLVING POWER; SIGNAL TO NOISE RATIO; SPURIOUS SIGNAL NOISE;

SPATIAL FILTERS; SPATIAL RESOLUTION;

ELECTROENCEPHALOGRAPHY;

EID: 0034744420     PISSN: 00906964     EISSN: None     Source Type: Journal    
DOI: 10.1114/1.1352642     Document Type: Article

References (49)

1. Performances of surface Laplacian estimators: A study of simulated and real scalp potential distributions
2. Spline Laplacian estimate of EEG potentials over a realistic magnetic resonance-constructed scalp surface model
3. MEG, EEG, and ECoG: Discussion
4. A spatial filter approach for comparison of the forward and inverse problems of electroencephalography and magnetoencephalography
5. Demonstration of useful differences between magnetoencephalogram and electroencephalogram
6. MEG versus EEG localization test using implanted sources in the human brain
7. A random dipole model for spontaneous brain activity
8. Dynamical functional topography of cognitive task
9. Seeing through the skull: Advanced EEGs use MRIs to accurately measure cortical activity from the scalp
10. MEG and ECoG localization accuracy test
11. Magnetoencephalography - Theory, instrumentation, and applications to noninvasive studies of the working human brain
12. MEG versus EEG localization test. Letter to the Editor
13. High-resolution source imaging of brain electrical activity
14. A bioelectric inverse imaging technique based on surface Laplacians
15. An equivalent body surface charge model representing three-dimensional bioelectrical activity
16. Body surface Laplacian ECG mapping
17. An on-line transformation of EEG scalp potentials into orthogonal source derivations
18. The potential for Laplacian maps to solve the inverse problem of elecrocardiography
19. Quantitative representation of the upper surface of the human head
20. High-resolution EEG using spline generated surface Laplacians on spherical and ellipsoidal surfaces
21. Local estimate of surface Laplacian derivation on a realistically shaped scalp surface and its performance on noisy data
22. On-line source-density computation with a minimum of electrodes
23. Sensitivity distributions of EEG and MEG measurements
24. Error bounds for EEG and MEG dipole source localization
25. Precision of dipole localization in a spherical volume conductor: A comparison of referential EEG, magnetoencephalography, and scalp current density methods
26. Comparisons of MEG, EEG, and ECoG source localization in neocortical partial epilepsy in humans
27. Estimation of large scale neocortical source activity with EEG surface Laplacians
28. The spline Laplacian in clinical neurophysiology: A method to improve EEG spatial resolution
29. A theoretical and experimental study of high-resolution EEG based on surface Laplacians and cortical imaging
30. The surface Laplacian, high-resolution EEG, and controversies
31. The surface Laplacian of the potential: Theory and application
32. Spatial resolution of neuronal generators based on EEG and MEG measurements
33. Scalp current density fields: Concepts and properties
34. Scalp current density mapping: Value and estimation from potential data
35. Electrically silent magnetic fields
36. Experimental tests of the cortical imaging technique - Applications to the response to median nerve stimulation and the localization of epileptiform discharges
37. Spatial fitlering and neocortical dynamics: Estimates of EEG coherence
38. Magnetic source localization and morphological changes in temporal lobe epilèpsy: Comparison of MEG/EEG, ECoG, and volumetric MRI in presurgical evaluation of operated patients
39. Computing the lead fields of electrodes with axial symmetry
40. A computer simulation study of cortical imaging from scalp potentials
41. The estimation of a realistic localization of dipole layers within the brain based on functional (EEG, MEG) and structural (MRI) data: A preliminary note
42. Theoretical aspects of the ECG-MCG relationship
43. Possible sources of new information in the magnetocardiogram
44. MEG versus EEG localization test. Letter to the Editor
45. Electrical sources in human somatosensory cortex: Identification by combined magnetic and potential recordings
46. On the estimation of the Laplacian electrocardiogram during ventricular activation
47. Magnetic location of neuronal activity in the human brain