@article{16fc05757f2440319e5779e1b27ece50,
title = "A model for frequency dependence of conductivities of the live human skull",
abstract = "A mathematical model (σ(ω) ≈ Aωα, where, σ≡ conductivity, ω =2πf ≡ applied frequency (Hz), A (amplitude) and α (unitless) ≡ search parameters) was used to fit the frequency dependence of electrical conductivities of compact, spongiosum, and bulk layers of the live and, subsequently, dead human skull samples. The results indicate that the fit of this model to the experimental data is excellent. The ranges of values of A and α were, spongiform (12.0-36.5, 0.0083-0.0549), the top compact (5.02-7.76, -0.137-0.0144), the lower compact (2.31-10.6, 0.0267-0.0452), and the bulk (7.46-10.6, 0.0133-0.0239). The respective values A and α for the respective layers of the dead skull samples were (40.1-89.7, -0.0017-0.0287), (5.53-14.5, -0.0296-0.0061), (4.58-15.9, -0.0226-0.0268), and (12.7-25.3, -0.0158-0.0132).",
keywords = "Conductivity, EEG, MEG, Model, Skull",
author = "Massoud Akhtari and Bryant, {H. C.} and D. Emin and W. Merrifield and Mamelak, {A. N.} and Flynn, {E. R.} and Shih, {J. J.} and M. Mandelkern and A. Matlachov and Ranken, {D. M.} and Best, {E. D.} and DiMauro, {M. A.} and Lee, {R. R.} and Sutherling, {W. W.}",
note = "Funding Information: * Department of Physics and Astronomy, The University of New Mexico, Albuquerque, NM, USA. + Huntington Medical Research Institutes, Pasadena, CA, USA. ^ Department of Neurology, The University of New Mexico School of Medicine, Albuquerque, NM, USA. ~Department of Neurosciences, The University of New Mexico School of Medicine, Albuquerque, NM, USA. # Department of Physics, University of California at Irvine, Irvine, CA, USA. $Epilepsy and Brain Mapping Program, Huntington Memorial Hospital, Pasadena, CA, USA. !Physics Division, Los Alamos National Laboratory, Los Alamos, NM, USA. %Department of Radiology, VA Medical Center, Albuquerque, NM, USA. <Senior Scientific, Albuquerque, NM, USA. > Huntington Hospital, Pasadena, CA, USA. ? Scientific Software Engineering, Los Alamos National Laboratory, Los Alamos, NM, USA. Accepted for publication: June 25, 2003. Supported By NIH Grant 20806. Correspondence and reprint requests should be addressed to Massoud Akhtari PhD., 545 Westgate St., Pasadena, CA, 91103, USA. Copyright {\textcopyright} 2003 Human Sciences Press, Inc.",
year = "2003",
month = sep,
doi = "10.1023/A:1025658432696",
language = "English (US)",
volume = "16",
pages = "39--55",
journal = "Brain Topography",
issn = "0896-0267",
publisher = "Kluwer Academic/Human Sciences Press Inc.",
number = "1",
}