Morphological basis for tonotopy in the anuran amphibian papilla.

  title={Morphological basis for tonotopy in the anuran amphibian papilla.},
  author={Edwin Lewis and E L Leverenz},
  journal={Scanning electron microscopy},
  volume={Pt 1},
The amphibian papilla of the more-recently derived frogs and toads is similar to the mammalian cochlea in at least three ways: 1. Its sensory surface is a slender, curved structure. 2. It exhibits tonotopy, with the highest-frequency sensitivity located at the end apparently closest to the source of acoustical excitation. 3. Its single-axon tuning curves exhibit extremely steep high-frequency slopes and gentle low-frequency slopes, consistent with selection by a distributed-parameter, low-pass… CONTINUE READING
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