Summary
Single unit recordings from the VIIIth nerve of the bullfrog (Rana catesbeiana) in response to tones reveal three populations of auditory fibers: low-frequency inhibitable fibers, mid-frequency non-inhibitable fibers and high-frequency non-inhibitable fibers. By selectively sectioning and recording from individual nerve branchlets within the inner ear, it is shown that the amphibian papilla gives rise to low and mid-frequency sensitive units and the basilar papilla gives rise to high-frequency sensitive units.
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This study was supported by an NIH Research Grant NS-09244 from the U.S. Public Health Service.
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Feng, A.S., Narins, P.M. & Capranica, R.R. Three populations of primary auditory fibers in the bullfrog (Rana catesbeiana): Their peripheral origins and frequency sensitivities. J. Comp. Physiol. 100, 221–229 (1975). https://doi.org/10.1007/BF00614532
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DOI: https://doi.org/10.1007/BF00614532