Continuous current source inversion of evoked potential fields in a spherical model head
- 1 January 1994
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Biomedical Engineering
- Vol. 41 (11) , 997-1003
- https://doi.org/10.1109/10.335836
Abstract
This study explores the efficacy of a physiological constraint on cortical current generators in promoting a robust solution for the inverse problem in evoked potentials. It is proposed that the current sources responsible for the evoked potential be modeled as a set of dipoles oriented orthogonal to the surface of the cortex. Rather than using a minimum norm approach, the solution space is searched for a vector that minimizes the error of the predicted evoked potential scalp field.Keywords
This publication has 26 references indexed in Scilit:
- Estimating regional brain activity from evoked potential fields on the scalpIEEE Transactions on Biomedical Engineering, 1993
- Method to reduce blur distortion from EEG's using a realistic head modelIEEE Transactions on Biomedical Engineering, 1993
- Minimum-norm least-squares estimation: magnetic source images for a spherical model headIEEE Transactions on Biomedical Engineering, 1993
- Magnetic source images determined by a lead-field analysis: the unique minimum-norm least-squares estimationIEEE Transactions on Biomedical Engineering, 1992
- Functional Mapping of the Human Visual Cortex by Magnetic Resonance ImagingScience, 1991
- Numerical tests of a method for simulating electrical potentials on the cortical surfaceIEEE Transactions on Biomedical Engineering, 1991
- Seeing through the skull: Advanced EEGs use MRIs to accurately measure cortical activity from the scalpBrain Topography, 1991
- Continuous probabilistic solutions to the biomagnetic inverse problemInverse Problems, 1990
- The solution of the biomagnetic inverse problem by maximum statistical entropyInverse Problems, 1989
- The (±) Reference: Accuracy of Estimated Mean Components in Average Response StudiesScience, 1967