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Brain Topography

, Volume 8, Issue 3, pp 291–296 | Cite as

Human middle latency auditory evoked magnetic fields

  • Takashi Yoshiura
  • Shoogo Ueno
  • Keiji Iramina
  • Kouji Masuda
Regular Papers

Summary

The magnetic equivalents of SN10, Po, Na, Pa, Nb and Pb (SN10m, Pom, Nam, Pam, Nbm and Pbm) in short and middle latency auditory evoked potentials were measured with a 7-channel DC superconducting quantum interference device (SQUID). The sources of Pom, Nam, Pam, Nbm and Pbm responses were estimated to be located in the auditory cortex, while the source of SN10m was considered to be in a deeper part of the brain. In addition, the source of Pam was estimated to be in the vicinity of the moving N100m source. The source of Pbm was considered to be in a separate area, anterior to the source of Pam and N100m, which suggested that the source of Pam was located in the primary auditory cortex, while the source of Pbm was located in the secondary auditory cortex. The source of N100m was considered to spread from the primary auditory cortex to the secondary auditory cortex.

Key words

Middle latency auditory evoked magnetic fields MLR AEFs MEG Human brain SQUID 

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Copyright information

© Human Sciences Press, Inc 1996

Authors and Affiliations

  • Takashi Yoshiura
    • 1
  • Shoogo Ueno
    • 2
  • Keiji Iramina
    • 3
  • Kouji Masuda
    • 1
  1. 1.Department of Radiology Faculty of MedicineKyushu UniversityFukuokaJapan
  2. 2.Institute of Medical Electronics, Faculty of MedicineUniversity of TokyoTokyoJapan
  3. 3.Department of Computer Science and Communication Engineering, Faculty of EngineeringKyushu UniversityFukuokaJapan

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