Developmental changes in frequency mapping of the gerbil cochlea: comparison of two cochlear locations.
The cochlear microphonic measured in scala tympani referenced to that at the round window is used to determine characteristic frequency (CF) at two locations in an age-graded series of Mongolian gerbils. No significant ontogenic shift in CF is seen at a second turn location, while an approximately 1.5 octave shift is seen in the mid-basal turn.
Arjmand
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Auditory Physiology Laboratory, Northwestern University, Evanston, Illinois 60201.
Harris
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D
Dallos
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P
D000367:Age Factors; D000818:Animals; D003051:Cochlea / Q000502:physiology*; D003055:Cochlear Microphonic Potentials; D005072:Evoked Potentials, Auditory; D005849:Gerbillinae / Q000502:physiology*; D010898:Pitch Perception / Q000502:physiology*; D012405:Round Window, Ear / Q000502:physiology; D012533:Scala Tympani / Q000502:physiology