From:
Sukie Crandall
Date: 2009-09-12 05:12:21 UTC
Subject: [ferrethealth] abstracts
To: fhl <ferrethealth@yahoogroups.com>
> J Acoust Soc Am. 2009 Sep;126(3):1321-35.
> Pitch discrimination by ferrets for simple and complex sounds.
> Walker KM, Schnupp JW, Hart-Schnupp SM, King AJ, Bizley JK.
> Department of Physiology, Anatomy and Genetics, Sherrington=20
> Building, Parks Road, University of Oxford, Oxfordshire, United=20
> Kingdom.
>
> Although many studies have examined the performance of animals in=20
> detecting a frequency change in a sequence of tones, few have=20
> measured animals' discrimination of the fundamental frequency (F0)=20
> of complex, naturalistic stimuli. Additionally, it is not yet clear=20
> if animals perceive the pitch of complex sounds along a continuous,=20
> low-to-high scale. Here, four ferrets (Mustela putorius) were=20
> trained on a two-alternative forced choice task to discriminate=20
> sounds that were higher or lower in F0 than a reference sound using=20
> pure tones and artificial vowels as stimuli. Average Weber fractions=20
> for ferrets on this task varied from approximately 20% to 80% across=20
> references (200-1200 Hz), and these fractions were similar for pure=20
> tones and vowels. These thresholds are approximately ten times=20
> higher than those typically reported for other mammals on frequency=20
> change detection tasks that use go/no-go designs. Naive human=20
> listeners outperformed ferrets on the present task, but they showed=20
> similar effects of stimulus type and reference F0. These results=20
> suggest that while non-human animals can be trained to label complex=20
> sounds as high or low in pitch, this task may be much more difficult=20
> for animals than simply detecting a frequency change.
>
> PMID: 19739746
>
-----
No abstract so I don't know if they mean allergies to ferrets or=20
allergies OF ferrets:
Ann Allergy Asthma Immunol. 2009 Aug;103(2):177-8.
Identification of a novel 17-kDa protein as a ferret allergen.
Gonz=E1lez de Olano D, Pastor Vargas C, Cases Ortega B, Perez-Gordo M,=20
Moral Darde V, Vivanco F, Bartolom=E9 B.
PMID: 19739435
Sukie (not a vet)
Recommended ferret health links:
http://pets.groups.yahoo.com/group/ferrethealth/
http://ferrethealth.org/archive/
http://www.afip.org/ferrets/index.html
http://www.miamiferret.org/
http://www.ferrethealth.msu.edu/
http://www.ferretcongress.org/
http://www.trifl.org/index.shtml
http://homepage.mac.com/sukie/sukiesferretlinks.html
all ferret topics:
http://listserv.ferretmailinglist.org/archives/ferret-search.html
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