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 (h0, h1, and h2). The h1s correctly predicted the frequency tuning and phases of responses to tones of ANFs with low characteristic frequency (CF). The h2s 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.
journal_name
J Neurophysioljournal_title
Journal of neurophysiologyauthors
Temchin AN,Recio-Spinoso A,van Dijk P,Ruggero MAdoi
10.1152/jn.00885.2004subject
Has Abstractpub_date
2005-06-01 00:00:00pages
3635-48issue
6eissn
0022-3077issn
1522-1598pii
00885.2004journal_volume
93pub_type
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