Re: F0 difference limens for unresolved harmonics (Nicolas Grimault )

Subject: Re: F0 difference limens for unresolved harmonics
From:    Nicolas Grimault  <nicolas.grimault(at)OLFAC.UNIV-LYON1.FR>
Date:    Thu, 14 Apr 2005 10:22:00 +0200

Dear David,

In our 2002 paper (involving the same stimuli than in Shackleton and
Carlyon 1994) we found DLs for unresolved harmonics of about 5% before
training and about 2% after training. 
This paper support the hypothesis that two different underlying mechanisms
mediate the encoding of the F0 of resolved und unresolved harmonics.

Cheers,

Nicolas

Grimault N, Micheyl C, Carlyon RP, Collet L (2002) "Evidence for two pitch
encoding mechanisms using a selective auditory training paradigm" Perc.
Psychophys. 64, 189-197.
http://olfac.univ-lyon1.fr/unite/equipe-02/grimault/download/grimaultetal200
2a.pdf



At 18:18 13/04/05 -0700, David Klein wrote:
>The 1994 JASA 95(6):3529 article of Shackleton and Carlyon indicates that
>the difference limen (DL) for the residue pitch (F0) of complex tones
>comprised only of unresolved harmonics is about 3%.  This works out to be
>about a half of a semitone.  Other similar data has been surprisingly
>tricky to track down.  Is there a consensus on this ballpark F0 DL for an
>unresolved harmonic complex?
>
>Also, is there a consensus on the existence of two separate pitch
>mechanisms? :-)
>
>-- David Klein
>
>
>
>
>
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Nicolas Grimault, Ph.D.
UMR CNRS 5020, Neurosciences & Systèmes Sensoriels
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