A model for focal magnetic brain stimulation

Anthony Murro, Joseph R. Smith, Don W. King, Brian B. Gallagher

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

In this study, we describe a magnetic coil designed for focal brain stimulation. We determined the distribution of magnetically induced currents using a multi-concentric spherical cranial computer model. The induced currents were primarily linearly oriented and concentrated below the coil's center. In comparison with large coils, small coils were less efficient but produced a more concentrated current distribution. Variations in conductivity among brain, scalp and skull produced secondary currents that reduced the magnetically induced current. This reduction in magnetically induced current was greater for larger coils.

Original languageEnglish (US)
Pages (from-to)37-43
Number of pages7
JournalInternational Journal of Bio-Medical Computing
Volume31
Issue number1
DOIs
StatePublished - Jul 1992

Keywords

  • Cerebral cortex
  • Cortical stimulation
  • Electroencephalography
  • Magnetic stimulation
  • Magnetoencephalography

ASJC Scopus subject areas

  • Medicine (miscellaneous)

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