title: Computational modeling of human head electromagnetics for source localization of milliscale brain dynamics.
abstract: Understanding the milliscale (temporal and spatial) dynamics of the human brain activity requires high-resolution modeling of head electromagnetics and source localization of EEG data. We have developed an automated environment to construct individualized computational head models from image segmentation and to estimate conductivity parameters using electrical impedance tomography methods. Algorithms incorporating tissue inhomogeneity and impedance anisotropy in electromagnetics forward simulations have been developed and parallelized. The paper reports on the application of the environment in the processing of realistic head models, including conductivity inverse estimation and lead field generation for use in EEG source analysis.
authors.affiliation: Department Computer and Information Science, University of Oregon, OR, USA.
authors.forename: Allen D
authors.initials: AD
authors.lastname: Malony
authors.forename: Adnan
authors.initials: A
authors.lastname: Salman
authors.forename: Sergei
authors.initials: S
authors.lastname: Turovets
authors.forename: Don
authors.initials: D
authors.lastname: Tucker
authors.forename: Vasily
authors.initials: V
authors.lastname: Volkov
authors.forename: Kai
authors.initials: K
authors.lastname: Li
authors.forename: Jung Eun
authors.initials: JE
authors.lastname: Song
authors.forename: Scott
authors.initials: S
authors.lastname: Biersdorff
authors.forename: Colin
authors.initials: C
authors.lastname: Davey
authors.forename: Chris
authors.initials: C
authors.lastname: Hoge
authors.forename: David
authors.initials: D
authors.lastname: Hammond
mesh_terms: D000465:Algorithms; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods*; D003198:Computer Simulation; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D004569:Electroencephalography / Q000379:methods*; D006257:Head / Q000502:physiology*; D006801:Humans; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology*