Wiener Kernels of chinchilla auditory-nerve fibers: Verification using responses to tones, clicks, and noise and comparison with basilar-membrane vibrations

Andrei N. Temchin, Alberto Recio-Spinoso, Pim Van Dijk, Mario A. Ruggero*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

Responses to tones, clicks, and noise were recorded from chinchilla auditory-nerve fibers (ANFs). The responses to noise were analyzed by computing the zeroth-, first-, and second-order Wiener kernels (h 0, h 1, and h 2). The h 1s correctly predicted the frequency tuning and phases of responses to tones of ANFs with low characteristic frequency (CF). The h 2s correctly predicted the frequency tuning and phases of responses to tones of all ANFs, regardless of CF. Also regardless of CF, the kernels jointly predicted about 77% of the features of ANF responses to "frozen" samples of noise. Near-CF group delays of kernels and signal-front delays of responses to intense rarefaction clicks exceeded by 1 ms the corresponding basilar-membrane delays at both apical and basal sites of the chinchilla cochlea. This result, confirming that synaptic and neural processes amount to 1 ms regardless of CF, permitted drawing a map of basilar-membrane delay as a function of position for the entire length of the chinchilla cochlea, a first for amniotic species.

Original languageEnglish (US)
Pages (from-to)3635-3648
Number of pages14
JournalJournal of neurophysiology
Volume93
Issue number6
DOIs
StatePublished - Jun 2005

ASJC Scopus subject areas

  • Neuroscience(all)
  • Physiology

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