Gustatory evoked magnetic fields in humans

Nobuki Murayama, Nobukazu Nakasato, Keisaku Hatanaka, Satoshi Fujita, Tomohiko Igasaki, Akitake Kanno, Takashi Yoshimoto

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Magnetic fields evoked by taste stimuli of the human tongue were measured over the whole head using a helmet-shaped 64 channel magnetoencephalography system in five normal subjects. The stimuli were 10% glucose and 0.3 M NaCl solutions and distilled water. The most prominent peak (N175m) appearing over the bilateral hemispheres had a latency of 150-210 ms. The N175m sources were located using a two-dipole model in a spherical conducting medium based on the individual head dimensions and superimposed on magnetic resonance images. The N175m dipoles due to 10% glucose and 0.3 M NaCl stimuli were located at the operculum and circum-insular areas in both hemispheres, but those due to distilled water could not be located accurately.

Original languageEnglish
Pages (from-to)121-123
Number of pages3
JournalNeuroscience Letters
Issue number2
Publication statusPublished - 1996 May 31


  • Evoked magnetic fields
  • Gustatory stimuli
  • Human cortex
  • Insular cortex
  • Operculum area
  • Primary gustatory area

ASJC Scopus subject areas

  • Neuroscience(all)

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    Murayama, N., Nakasato, N., Hatanaka, K., Fujita, S., Igasaki, T., Kanno, A., & Yoshimoto, T. (1996). Gustatory evoked magnetic fields in humans. Neuroscience Letters, 210(2), 121-123.