Research Notes

Experimental Brain Research

, Volume 40, Issue 2, pp 237-240

First online:

Auditory evoked transient and sustained magnetic fields of the human brain localization of neural generators

  • R. HariAffiliated withDepartment of Neurology, University of Helsinki
  • , K. AittoniemiAffiliated withDepartment of Technical Physics, Helsinki University of Technology
  • , M. -L. JärvinenAffiliated withDepartment of Technical Physics, Helsinki University of Technology
  • , T. KatilaAffiliated withDepartment of Technical Physics, Helsinki University of Technology
  • , T. VarpulaAffiliated withDepartment of Technical Physics, Helsinki University of Technology

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Summary

A long auditory stimulus elicits a magnetic evoked response in the human brain, consisting of transient deflections followed by a sustained response. The distributions of the magnetic fields indicate that the auditory evoked transient response at a latency of 100 ms as well as the auditory sustained response are generated at and around the primary auditory cortex.

Key words

Magnetoencephalography Evoked fields Evoked potentials Transient and sustained responses Audition