Brain Topography

, Volume 13, Issue 1, pp 29–42

Conductivities of Three-Layer Human Skull

  • M. Akhtari
  • H.C. Bryant
  • A.N.Mamelak Mamelak
  • L. Heller
  • J.J. Shih
  • M. Mandelkern
  • A. Matlachov
  • D.M. Ranken
  • E.D. Best
  • W.W. Sutherling
Article

DOI: 10.1023/A:1007882102297

Cite this article as:
Akhtari, M., Bryant, H., Mamelak, A. et al. Brain Topogr (2000) 13: 29. doi:10.1023/A:1007882102297
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Abstract

In this study, electrical conductivities of compact, spongiosum, and bulk layers of cadaver skull were determined at varying electric fields at room temperature. Current was applied and withdrawn over the top and bottom surfaces of each sample and potential drop across different layers was measured using the four-electrode method. We developed a model, which considers of variations in skull thicknesses, to determine the conductivity of the tri-layer skull and its individual anatomical structures. The results indicate that the spongiform and the two compact layers of the skull have significantly different and inhomogeneous conductivities ranging from 0.76 ∓ .14 to 11.5 ∓ 1.8 milliS/m.

conductivity skull human inhomogeneity spongiosum compact layer 

Copyright information

© Human Sciences Press, Inc. 2000

Authors and Affiliations

  • M. Akhtari
    • 1
    • 2
  • H.C. Bryant
    • 1
  • A.N.Mamelak Mamelak
    • 2
    • 3
  • L. Heller
    • 4
  • J.J. Shih
    • 5
    • 6
  • M. Mandelkern
    • 7
  • A. Matlachov
    • 4
  • D.M. Ranken
    • 4
  • E.D. Best
    • 4
  • W.W. Sutherling
    • 2
    • 3
  1. 1.Department of Physics and AstronomyThe University of New MexicoAlbuquerqueUSA
  2. 2.Huntington Medical Research InstitutePasadenaUSA
  3. 3.Epilepsy and Brain Mapping ProgramHuntington Memorial HospitalPasadenaUSA
  4. 4.Physics DivisionLos Alamos National LaboratoryLos AlamosUSA
  5. 5.Department of NeurologyThe University of New Mexico School of MedicineAlbuquerqueUSA
  6. 6.Department of NeurosciencesThe University of New Mexico School of MedicineAlbuquerqueUSA
  7. 7.Department of PhysicsUniversity of California at IrvineIrvineUSA

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