Re: limits of phase locking

[Jont Allen <jba@xxxxxxxxxxxxxxxx>]

I was in the lab at columbia when they did this work, and in my opinion
they had a cochlear microphone component in the electrode signal.
It was this CM component that they were measuring.

Of course they will not agree I would suspect. However I am not alone is
being suspect of this report of Teich et al.

In the cat the maximum frequency for phase locking is 4 kHz. I tried to
get locking at 5 kHz, and the SNR is so bad, that averaging for an hour
would not recover any component at that frequency. Please look at

 author = {Allen, J. B.},
   title = {Magnitude and phase-frequency response to single tones in the
        auditory nerve},
   journal = {JASA},
   volume = {73},
        number = 6,
   pages = {2071-2092},
   year = {1983}

Jont

Alain de Cheveigne' wrote:
>
> A while back there was a discussion on the limits of phase locking in the
> auditory nerve.  A limit of 4-6 kHz was quoted for the cat, and 9 kHz for
> the barn owl.
>
> I just came across a paper by Teich, Khanna and Guiney that puts the limit
> at at least 18 kHz in the cat.  They used a special timing circuit that
> triggered on spike peaks rather than shoulders.
>
> Alain
>
> ---
> Teich, M. C., Khanna, S. M., and Guiney, P. C. (1993). "Spectral
> characteristics and synchrony in primary auditory-nerve fibers in response
> to pure-tone stimuli,"  J. Statistical Physics 70, 257-279.
> ---
>
> ------------------------------------------------------------------
> Alain de Cheveigne'
> Laboratoire de Linguistique Formelle, CNRS / Universite' Paris 7,
> case 7003, 2 place Jussieu, 75251 Paris CEDEX 05, FRANCE.
> phone:   +33 1 44273633, fax: +33 1 44277919
> e-mail:  alain@linguist.jussieu.fr
> http://www.linguist.jussieu.fr/~alain/
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