Phase-locked responses to tones of chinchilla auditory nerve fibers: implications for apical cochlear mechanics.

Journal of the Association for Research in Otolaryngology : JARO
A N Temchin, M A Ruggero

Abstract

Responses to tones with frequency < or = 5 kHz were recorded from auditory nerve fibers (ANFs) of anesthetized chinchillas. With increasing stimulus level, discharge rate-frequency functions shift toward higher and lower frequencies, respectively, for ANFs with characteristic frequencies (CFs) lower and higher than approximately 0.9 kHz. With increasing frequency separation from CF, rate-level functions are less steep and/or saturate at lower rates than at CF, indicating a CF-specific nonlinearity. The strength of phase locking has lower high-frequency cutoffs for CFs >4 kHz than for CFs < 3 kHz. Phase-frequency functions of ANFs with CFs lower and higher than approximately 0.9 kHz have inflections, respectively, at frequencies higher and lower than CF. For CFs >2 kHz, the inflections coincide with the tip-tail transitions of threshold tuning curves. ANF responses to CF tones exhibit cumulative phase lags of 1.5 periods for CFs 0.7-3 kHz and lesser amounts for lower CFs. With increases of stimulus level, responses increasingly lag (lead) lower-level responses at frequencies lower (higher) than CF, so that group delays are maximal at, or slightly above, CF. The CF-specific magnitude and phase nonlinearities of ANFs with CFs < 2....Continue Reading

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Citations

Nov 26, 2010·Journal of the Association for Research in Otolaryngology : JARO·Almudena Eustaquio-Martín, Enrique A Lopez-Poveda
Jan 8, 2011·Journal of the Association for Research in Otolaryngology : JARO·Corstiaen P C VersteeghMarcel van der Heijden
Jan 1, 2011·Journal of Mathematical Neuroscience·Hans Martin Reimann
Aug 3, 2012·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Andrei N TemchinMario A Ruggero
Sep 24, 2010·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Leonardo Cedolin, Bertrand Delgutte
May 17, 2011·The Journal of the Acoustical Society of America·Sumitrajit DharCarolina Abdala
Dec 2, 2010·The Journal of the Acoustical Society of America·Mario FleischerAnthony W Gummer
Sep 17, 2015·Journal of the Association for Research in Otolaryngology : JARO·Maria A Berezina-Greene, John J Guinan
Mar 16, 2016·Hearing Research·Srikanta K Mishra, Milan Biswal
Jun 13, 2015·Journal of the Association for Research in Otolaryngology : JARO·Luis RoblesMario A Ruggero
Apr 30, 2015·Cell and Tissue Research·Peter Heil, Adam J Peterson
Sep 1, 2015·PloS One·Yanju LiuJong-Hoon Nam
Nov 13, 2012·PloS One·Andrew Bell
Apr 7, 2017·The Journal of Physiology·Alberto Recio-Spinoso, John S Oghalai
Jul 14, 2017·Journal of Neurophysiology·Liting WeiPhilip X Joris
Jul 7, 2017·The Journal of the Acoustical Society of America·Alessandro AltoèSarah Verhulst
Oct 3, 2020·The Journal of the Acoustical Society of America·Anders T ChristensenChristopher A Shera
May 20, 2021·Hearing Research·Adam J Peterson, Peter Heil
Apr 17, 2021·Bioinspiration & Biomimetics·Ananya BhardwajRolf Müller

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