Brain Topography

, Volume 7, Issue 4, pp 315–320

Generators of electrical and magnetic mismatch responses in humans

  • R. Näätänen
  • K. Alho
Article

DOI: 10.1007/BF01195257

Cite this article as:
Näätänen, R. & Alho, K. Brain Topogr (1995) 7: 315. doi:10.1007/BF01195257

Summary

Studies bearing on generators of the electric and magnetic mismatch responses in humans to change in a repetitive sound are reviewed. It was concluded that the main contribution of the mismatch negativity (MMN) and of its magnetic equivalent MMNm, elicited even in the absence of attention, originates from auditory cortex on the supratemporal plane. In addition, those responses probably have one or two sources on the right lateral temporal cortex and, at least the MMN, a source also in the right frontal cortex. The activation caused by stimulus change in the sensory-specific cortex is, presumably, a manifestation of preperceptual change detection, whereas the frontal activation might be associated with conscious perception of, attention switch to, stimulus change.

Key words

Mismatch negativityMagnetoencephalography sensory memoryNeural representationEvent-related potentialAutomatic processingMemory trace

Copyright information

© Human Sciences Press, Inc 1995

Authors and Affiliations

  • R. Näätänen
    • 1
  • K. Alho
    • 1
  1. 1.Cognitive Psychophysiology Research Unit, Department of PsychologyUniversity of HelsinkiFinland