Linked Life Data

11506934

Source:http://linkedlifedata.com/resource/pubmed/id/11506934

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2001-8-16
pubmed:abstractText
Cochlear root neurons (CRNs) are second-order neurons interspersed among the fibers of the cochlear nerve in certain rodents. They project, among other nuclei, mainly to the pontine reticular nucleus, and participate in the acoustic startle response (ASR), a short-latency motor reflex initiated by sudden intense sounds. The sound-evoked activity of CRNs has not previously been described. Here we describe extracellular responses of CRNs located in the infranuclear portion of the cochlear nerve root. CRNs exhibited secure responses to tone bursts, with first-spike latencies of approximately 2.2 ms. The characteristic frequencies of the recorded CRNs were about 30 kHz, and the best-characterized CRN had a threshold of 10 dB sound pressure level and sharpness of tuning similar to that of cochlear nerve fibers. The peristimulus time histograms were primary-like with notch. The observed response properties were consistent with the suggestion that CRNs provide the short-latency acoustic input to the reticular formation that leads to an ASR.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0378-5955
pubmed:author
pubmed:issnType
Print
pubmed:volume
158
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
28-38
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Electrophysiological responses of cochlear root neurons.
pubmed:affiliation
Arizona State University, Department of Speech and Hearing Science, Tempe 85287-1908, USA. sinex@asu.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't