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The contribution of frequency-specific activity to hierarchical information processing in the human auditory cortex

Author

Listed:
  • L. Fontolan

    (University of Geneva, Biotech Campus, 9, Chemin des Mines, Geneva 1211, Switzerland)

  • B. Morillon

    (Columbia University Medical Center)

  • C. Liegeois-Chauvel

    (INSERM U1106—Institut de Neurosciences des Systèmes, Université Aix-Marseille)

  • Anne-Lise Giraud

    (University of Geneva, Biotech Campus, 9, Chemin des Mines, Geneva 1211, Switzerland)

Abstract

The fact that feed-forward and top-down propagation of sensory information use distinct frequency bands is an appealing assumption for which evidence remains scarce. Here we obtain human depth recordings from two auditory cortical regions in both hemispheres, while subjects listen to sentences, and show that information travels in each direction using separate frequency channels. Bottom-up and top-down propagation dominates in γ- and δ–β (

Suggested Citation

  • L. Fontolan & B. Morillon & C. Liegeois-Chauvel & Anne-Lise Giraud, 2014. "The contribution of frequency-specific activity to hierarchical information processing in the human auditory cortex," Nature Communications, Nature, vol. 5(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5694
    DOI: 10.1038/ncomms5694
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