Somatosensory evoked response source localization using actual cortical surface as the spatial constraint
| Autor: | Robert L. Rogers, R. Lufkin, J. Mallick, H. E. Cline, D. McNay, R. Tatar, K. Chan, Glenn T. Clark, M. Akhtari, B. Teeter, William W. Sutherling, M. Mandelkern |
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| Rok vydání: | 1994 |
| Předmět: |
Somatosensory evoked response
Adult Male Physics::Medical Physics Somatosensory system Equivalent dipole Evoked Potentials Somatosensory Source localization medicine Humans Radiology Nuclear Medicine and imaging Brodmann area 3b Computer vision Cortical surface Mathematics Brain Mapping Quantitative Biology::Neurons and Cognition Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Brain Magnetoencephalography Pattern recognition Electric Stimulation Constraint (information theory) Neurology Neurology (clinical) Artificial intelligence Anatomy business |
| Zdroj: | Brain topography. 7(1) |
| ISSN: | 0896-0267 |
| Popis: | We localized right median nerve somatosensory evoked responses in a normal human subject using an equivalent dipole method applied to magnetic field recordings. High resolution, 3-dimensional MRI data were used to confine source locations to the cortical surface. Results localized in Brodmann area 3b corresponding to location of hand somatosensory cortex derived from direct brain stimulation studies. The solution was unique and total computational time for an exhaustive, brute-force search was small and the results realistic due to applied anatomical constraints. This study demonstrates feasibility of accurate, non-invasive, realistic localization of dynamic human cortical function using spatial constraints provided by MRI images. |
| Databáze: | OpenAIRE |
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