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Cochlear Mechanics of homo and of other mammals.


On vocalization I have nothing to say -- but this discussion has made me think of a question related to the mechanics of the mammalian cochlea: In the basal half of the cochleae of chinchilla, guinea-pig, and gerbil, during a sine-tone of (high) frequency f the "characteristic place" (place of maximal excitation at low sound-pressure level) has been found to be basal of the without-liquid resonance place of the basilar membrane [where sqrt(S/M) = 2pi*f; S = effective BM stiffness, M = effective BM mass surface density] by about 0.5 one-octave distance. Are there new results on the distance between those two places in homo? 

Reinhart Frosch,
Dr. phil. nat.,
CH-5200 Brugg.
reinifrosch@xxxxxxxxxx .

----UrsprÃngliche Nachricht----
Von: robert.zatorre@xxxxxxxxx
Datum: 02.03.2011 19:55
An: <AUDITORY@xxxxxxxxxxxxxxx>
Betreff: Re: What animal model provides the closest match to human vocalization? [...]