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Re: Delay of the active cochlea
Hi Tamás,
You have two approaches with respect to active delay :
1] Travelling wave delay ... I am not sure where to find accurate delay
measurements for the travelling wave point of view ... a good
theoretical treatment follows from Shera's work [1] for example. I am
sure in that paper you will find references to measurements...
2] Electrical delay measurements ... Wilson gives some detail about this
issue [2].
The travelling wave active models assume as much as 12 cycles of delay -
perhaps more ?
I am going to submit my PhD thesis in the next few months ... it will
delve more into the physiological mechanisms of activity.... stay tuned!
Matt
[1] @ARTICLE{shera:2005,
author = {Shera, C.A. and Tubis, A. and Talmadge, C.L.},
title = {{Coherent reflection in a two-dimensional cochlea: Short-wave
versus
long-wave scattering in the generation of reflection-source
otoacoustic
emissions}},
journal = {The Journal of the Acoustical Society of America},
year = {2005},
volume = {118},
pages = {287},
publisher = {ASA}
}
[2] @ARTICLE{wilson:1980,
author = {Wilson, JP},
title = {{Model for cochlear echoes and tinnitus based on an observed
electrical
correlate.}},
journal = {Hearing Research},
year = {1980},
volume = {2},
pages = {527--32},
number = {3-4}
}
On Wed, Sep 26, 2007 at 10:55:28AM +0200, Harczos Tamás wrote:
> Dear List,
>
> regarding to Greenberg et al. (1997) the amount of cochlear delay along the
> basilar membrane has 1/x manner, and ranges from ~3ms to ~12ms. For an
> experiment I would need very precise delay values for human cochlea and I
> wonder if someone could point me to references from the last 10 years
> concerning measurement results of active cochlear delay in humans.
>
> Thanks in advance!
> Tamás
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