• We are sorry, but NCBI web applications do not support your browser and may not function properly. More information
Logo of pnasPNASInfo for AuthorsSubscriptionsAboutThis Article
Proc Natl Acad Sci U S A. Oct 15, 1991; 88(20): 8996–9000.
PMCID: PMC52638

Human auditory evoked gamma-band magnetic fields.

Abstract

We have discovered a ca. 40-Hz transient magnetic oscillatory response, evoked in the human brain by the onset of auditory stimuli, consisting of four or more cycles locked in phase to stimulus onset in approximately the 20- to 130-ms poststimulus interval. The response originates in the supratemporal auditory cortex, some millimeters deeper and anterior to the source of the larger-amplitude slow-wave M100 component of the evoked magnetic field and moves in a posterior arcing trajectory 1 cm or more in length. The oscillatory cortical activation elicited by auditory stimuli may be similar to the gamma-band cortical oscillations elicited by olfactory and visual stimuli and may represent an essential component of auditory perceptual processing.

Full text

Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.0M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References.

Images in this article

Click on the image to see a larger version.

Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Bressler SL. The gamma wave: a cortical information carrier? Trends Neurosci. 1990 May;13(5):161–162. [PubMed]
  • Adrian ED. Olfactory reactions in the brain of the hedgehog. J Physiol. 1942 Mar 31;100(4):459–473. [PMC free article] [PubMed]
  • Freeman WJ, Skarda CA. Spatial EEG patterns, non-linear dynamics and perception: the neo-Sherringtonian view. Brain Res. 1985 Dec;357(3):147–175. [PubMed]
  • Gray CM, Singer W. Stimulus-specific neuronal oscillations in orientation columns of cat visual cortex. Proc Natl Acad Sci U S A. 1989 Mar;86(5):1698–1702. [PMC free article] [PubMed]
  • Gray CM, König P, Engel AK, Singer W. Oscillatory responses in cat visual cortex exhibit inter-columnar synchronization which reflects global stimulus properties. Nature. 1989 Mar 23;338(6213):334–337. [PubMed]
  • Eckhorn R, Bauer R, Jordan W, Brosch M, Kruse W, Munk M, Reitboeck HJ. Coherent oscillations: a mechanism of feature linking in the visual cortex? Multiple electrode and correlation analyses in the cat. Biol Cybern. 1988;60(2):121–130. [PubMed]
  • Barinaga M. The mind revealed? Science. 1990 Aug 24;249(4971):856–858. [PubMed]
  • STERIADE M, DEMETRESCU M. Reticular facilitation of responses to acoustic stimuli. Electroencephalogr Clin Neurophysiol. 1962 Feb;14:21–36. [PubMed]
  • Bouyer JJ, Montaron MF, Rougeul A. Fast fronto-parietal rhythms during combined focused attentive behaviour and immobility in cat: cortical and thalamic localizations. Electroencephalogr Clin Neurophysiol. 1981 Mar;51(3):244–252. [PubMed]
  • Galambos R, Makeig S, Talmachoff PJ. A 40-Hz auditory potential recorded from the human scalp. Proc Natl Acad Sci U S A. 1981 Apr;78(4):2643–2647. [PMC free article] [PubMed]
  • Mäkelä JP, Hari R. Evidence for cortical origin of the 40 Hz auditory evoked response in man. Electroencephalogr Clin Neurophysiol. 1987 Jun;66(6):539–546. [PubMed]
  • Hari R, Hämäläinen M, Joutsiniemi SL. Neuromagnetic steady-state responses to auditory stimuli. J Acoust Soc Am. 1989 Sep;86(3):1033–1039. [PubMed]
  • Romani GL, Williamson SJ, Kaufman L. Tonotopic organization of the human auditory cortex. Science. 1982 Jun 18;216(4552):1339–1340. [PubMed]
  • Sarvas J. Basic mathematical and electromagnetic concepts of the biomagnetic inverse problem. Phys Med Biol. 1987 Jan;32(1):11–22. [PubMed]
  • Pelizzone M, Hari R, Mäkelä JP, Huttunen J, Ahlfors S, Hämäläinen M. Cortical origin of middle-latency auditory evoked responses in man. Neurosci Lett. 1987 Dec 4;82(3):303–307. [PubMed]
  • Terhardt E. Warum hören wir Sinustöne? Naturwissenschaften. 1989 Nov;76(11):496–504. [PubMed]

Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of National Academy of Sciences

Formats:

Related citations in PubMed

See reviews...See all...

Cited by other articles in PMC

See all...

Links

  • PubMed
    PubMed
    PubMed citations for these articles

Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...