title: Evaluation of cortical imaging techniques based on somatosensory evoked potentials.
abstract: In the present study we evaluate the performance of several inverse algorithms for reconstructing the cortical current density distributions from scalp EEG recordings. The direct cortical SEP recordings in a patient were used as a gold standard to assess the performance of the numerical algorithms. The present results suggest that L(1)-norm methods gave the most accurate results in terms of cortical current density imaging of brain responses invoked by somatosensory stimulation.
authors.affiliation: Department of Biomedical Engineering, University of Minnesota, 312 Church Street, Minneapolis, MN 55455, USA.
authors.forename: Xiaoxiao
authors.initials: X
authors.lastname: Bai
authors.forename: Vernon L
authors.initials: VL
authors.lastname: Towle
authors.forename: Eric J
authors.initials: EJ
authors.lastname: He
authors.forename: Bin
authors.initials: B
authors.lastname: He
mesh_terms: D000465:Algorithms; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods*; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D004569:Electroencephalography / Q000379:methods*; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D006801:Humans