PMID: 9447937Feb 3, 1998Paper

Dissecting the frog inner ear with Gaussian noise. II. Temperature dependence of inner ear function

Hearing Research
P Van DijkJ M Segenhout

Abstract

The temperature dependence of the response of single primary auditory nerve fibers (n = 31) was investigated in the European edible frog, Rana esculenta (seven ears). Nerve fiber responses were analyzed with Wiener kernel analysis and polynomial correlation. The responses were described with a cascade model, consisting of a linear bandpass filter, a static nonlinearity, and a linear lowpass filter. From the computed Wiener kernels and the polynomial correlation functions, the characteristics of the three model components were obtained. With increasing temperature (1) tuning of the first filter increased in the majority (n = 16) of amphibian papilla fibers (best excitatory frequency, BEF < 1 kHz, n = 21) but remained unchanged in the majority (n = 10) of basilar papilla fibers (BEF > 1 kHz, n = 11), (2) the gain of the first filter remained unchanged, (3) the shape of nonlinear IO function remained unchanged, (4) the combined gain of the static nonlinearity and the second filter usually increased, but displayed considerable scatter across fibers (from -0.7 dB/degrees C to 3 dB/degrees C), and (5) the cutoff frequency of the second lowpass filter increases, with average 0.13 oct/degrees C. The immunity of the shape of the nonline...Continue Reading

References

Jun 1, 1990·Hearing Research·I B Stiebler, P M Narins
Nov 1, 1994·The Journal of the Acoustical Society of America·J H BenedixP M Narins
Nov 1, 1996·Hearing Research·P van DijkJ Wang

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Citations

Sep 3, 2002·Hearing Research·Edwin R LewisWalter M Yamada
Nov 16, 2002·Hearing Research·Edwin R LewisWalter M Yamada
Feb 28, 2004·Hearing Research·Geoffrey A Manley
Mar 3, 2007·Hearing Research·Michael G Sneary, Edwin R Lewis
Feb 13, 2010·Hearing Research·Pim Van DijkSebastiaan W F Meenderink

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