IDEAS home Printed from https://ideas.repec.org/a/plo/pone00/0022584.html
   My bibliography  Save this article

Emergence of Tuning to Natural Stimulus Statistics along the Central Auditory Pathway

Author

Listed:
  • Jose A Garcia-Lazaro
  • Bashir Ahmed
  • Jan W H Schnupp

Abstract

We have previously shown that neurons in primary auditory cortex (A1) of anaesthetized (ketamine/medetomidine) ferrets respond more strongly and reliably to dynamic stimuli whose statistics follow “natural” 1/f dynamics than to stimuli exhibiting pitch and amplitude modulations that are faster (1/f 0.5) or slower (1/f 2) than 1/f. To investigate where along the central auditory pathway this 1/f-modulation tuning arises, we have now characterized responses of neurons in the central nucleus of the inferior colliculus (ICC) and the ventral division of the mediate geniculate nucleus of the thalamus (MGV) to 1/f γ distributed stimuli with γ varying between 0.5 and 2.8. We found that, while the great majority of neurons recorded from the ICC showed a strong preference for the most rapidly varying (1/f 0.5 distributed) stimuli, responses from MGV neurons did not exhibit marked or systematic preferences for any particular γ exponent. Only in A1 did a majority of neurons respond with higher firing rates to stimuli in which γ takes values near 1. These results indicate that 1/f tuning emerges at forebrain levels of the ascending auditory pathway.

Suggested Citation

  • Jose A Garcia-Lazaro & Bashir Ahmed & Jan W H Schnupp, 2011. "Emergence of Tuning to Natural Stimulus Statistics along the Central Auditory Pathway," PLOS ONE, Public Library of Science, vol. 6(8), pages 1-7, August.
    • Handle: RePEc:plo:pone00:0022584
    DOI: 10.1371/journal.pone.0022584
    as

    Download full text from publisher

    File URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0022584
    Download Restriction: no
    File URL: https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0022584&type=printable
    Download Restriction: no
    File URL: https://libkey.io/10.1371/journal.pone.0022584?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Aniruddh D. Patel & Evan Balaban, 2000. "Temporal patterns of human cortical activity reflect tone sequence structure," Nature, Nature, vol. 404(6773), pages 80-84, March.
    2. Bizzarri, Anna Rita & Cannistraro, Salvatore, 1999. "Molecular dynamics simulation of plastocyanin potential energy fluctuations: 1/f noise," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 267(3), pages 257-270.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      More about this item

      Statistics

      Access and download statistics

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:plo:pone00:0022584. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: plosone (email available below). General contact details of provider: https://journals.plos.org/plosone/ .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.