Interpreting magnetic fields on the brain : minimum norm estimates
The authors have applied estimation theory to the problem of determining primary current distributions from measured neuromagnetic fields. In this procedure, essentially nothing is assumed about the source currents, except that they are spatially restricted to a certain region. Simulation experiment...
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| Veröffentlicht in: | Medical & biological engineering & computing 1994, Vol.32 (1), p.35-42 |
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| container_title | Medical & biological engineering & computing |
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| creator | HÄMÄLÄINEN, M. S ILMONIEMI, R. J |
| description | The authors have applied estimation theory to the problem of determining primary current distributions from measured neuromagnetic fields. In this procedure, essentially nothing is assumed about the source currents, except that they are spatially restricted to a certain region. Simulation experiments show that the results can describe the structure of the current flow fairly well. By increasing the number of measurements, the estimate can be made more localised. The current distributions may be also used as an interpolation and an extrapolation for the measured field patterns. |
| doi_str_mv | 10.1007/bf02512476 |
| format | Article |
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The current distributions may be also used as an interpolation and an extrapolation for the measured field patterns.</description><subject>Biological and medical sciences</subject><subject>Brain - physiology</subject><subject>Electricity</subject><subject>Evoked Potentials</subject><subject>Humans</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Magnetoencephalography - methods</subject><subject>Medical sciences</subject><subject>Models, Neurological</subject><subject>Nervous system</subject><subject>Pathology. Cytology. Biochemistry. Spectrometry. 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| ispartof | Medical & biological engineering & computing, 1994, Vol.32 (1), p.35-42 |
| issn | 0140-0118 1741-0444 |
| language | eng |
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| source | MEDLINE; SpringerLink Journals - AutoHoldings |
| subjects | Biological and medical sciences Brain - physiology Electricity Evoked Potentials Humans Investigative techniques, diagnostic techniques (general aspects) Magnetoencephalography - methods Medical sciences Models, Neurological Nervous system Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques Statistics as Topic |
| title | Interpreting magnetic fields on the brain : minimum norm estimates |
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