From:
Sukie Crandall
Date: 2006-12-06 04:31:54 UTC
Subject: [ferrethealth] Abstracts
To: ferrethealth@yahoogroups.com
<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?
db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=17134761&query_hl=1&i
tool=pubmed_docsum>
BEGIN QUOTE
J Neurosci Methods. 2006 Nov 27; [Epub ahead of print]
Chronically recording with a multi-electrode array device in the
auditory cortex of an awake ferret.
Dobbins HD, Marvit P, Ji Y, Depireux DA.
Department of Anatomy and Neurobiology, Program in Neuroscience,
School of Medicine, University of Maryland, Baltimore, MD 21201,
United States; Program in Neuroscience, School of Medicine,
University of Maryland, Baltimore, Baltimore, MD 21201, United States.
It is known that anesthesia depresses neural activity and inhibits
cortico-cortical interactions and cortical output. Hence, it is
important to record from awake animals in order to better understand
the full dynamic range of neural responses. We have developed a
preparation for chronic, multi-electrode physiological recording in
the cortex of the awake ferret. This paper discusses several of the
advantages and disadvantages of the technique as well as procedures
used to overcome potential complications associated with chronic
implants in the ferret. Our solutions are well suited to the special
species requirements, yet are also easily generalizable to other
species.
PMID: 17134761 [PubMed - as supplied by publisher]
END QUOTE
<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?
db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=17135481&query_hl=1&i
tool=pubmed_docsum>
BEGIN QUOTE
Cereb Cortex. 2006 Nov 29; [Epub ahead of print]
Physiological and Anatomical Evidence for Multisensory Interactions
in Auditory Cortex.
Bizley JK, Nodal FR, Bajo VM, Nelken I, King AJ.
Department of Physiology, Anatomy, and Genetics, University of
Oxford, Oxford OX1 3PT, UK.
Recent studies, conducted almost exclusively in primates, have shown
that several cortical areas usually associated with modality-specific
sensory processing are subject to influences from other senses. Here
we demonstrate using single-unit recordings and estimates of mutual
information that visual stimuli can influence the activity of units
in the auditory cortex of anesthetized ferrets. In many cases, these
units were also acoustically responsive and frequently transmitted
more information in their spike discharge patterns in response to
paired visual-auditory stimulation than when either modality was
presented by itself. For each stimulus, this information was conveyed
by a combination of spike count and spike timing. Even in primary
auditory areas (primary auditory cortex [A1] and anterior auditory
field [AAF]), approximately 15% of recorded units were found to have
nonauditory input. This proportion increased in the higher level
fields that lie ventral to A1/AAF and was highest in the anterior
ventral field, where nearly 50% of the units were found to be
responsive to visual stimuli only and a further quarter to both
visual and auditory stimuli. Within each field, the pure-tone
response properties of neurons sensitive to visual stimuli did not
differ in any systematic way from those of visually unresponsive
neurons. Neural tracer injections revealed direct inputs from visual
cortex into auditory cortex, indicating a potential source of origin
for the visual responses. Primary visual cortex projects sparsely to
A1, whereas higher visual areas innervate auditory areas in a field-
specific manner. These data indicate that multisensory convergence
and integration are features common to all auditory cortical areas
but are especially prevalent in higher areas.
PMID: 17135481 [PubMed - as supplied by publisher]
END QUOTE
<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?
db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=17127760&query_hl=1&i
tool=pubmed_docsum>
No abstract:
BEGIN QUOTE
Vet Rec. 2006 Nov 25;159(22):748.
Efficacy and safety of selamectin in the treatment of Otodectes
cynotis infestation in domestic ferrets.
Miller DS, Eagle RP, Zabel S, Rosychuk R, Campbell TW.
Veterinary Teaching Hospital, Colorado State University, 300 West
Drake, Fort Collins, Colorado 80523, usa.
PMID: 17127760 [PubMed - in process]
<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?
db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=17142629&query_hl=1&i
tool=pubmed_docsum>
No abstract:
BEGIN QUOTE
Vet Rec. 2006 Dec 2;159(23):782-5.
Links
Carpal myxosarcoma and forelimb amputation in a ferret (Mustela
putorius furo).
van Zeeland YR, Hernandez-Divers SJ, Blasier MW, Vila-Garcia G,
Delong D, Stedman NL.
Department of Small Animal Medicine, Faculty of Veterinary Medicine,
University of Utrecht, Utrecht, The Netherlands.
PMID: 17142629 [PubMed - in process]
END QUOTE
Sukie (not a vet)
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