Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Electrophysiological responses of cochlear root neurons
Autore:
Sinex, DG; Lopez, DE; Warr, WB;
Indirizzi:
Arizona State Univ, Dept Speech & Hearing Sci, Tempe, AZ 85287 USA ArizonaState Univ Tempe AZ USA 85287 & Hearing Sci, Tempe, AZ 85287 USA INCYL, Dept Biol Celular & Patol, Lab Neurobiol Audic, Salamanca 37007, Spain INCYL Salamanca Spain 37007 Lab Neurobiol Audic, Salamanca 37007, Spain Boys Town Natl Res Hosp, Omaha, NE 68131 USA Boys Town Natl Res Hosp Omaha NE USA 68131 Res Hosp, Omaha, NE 68131 USA
Titolo Testata:
HEARING RESEARCH
fascicolo: 1-2, volume: 158, anno: 2001,
pagine: 28 - 38
SICI:
0378-5955(200108)158:1-2<28:EROCRN>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACOUSTIC STARTLE REFLEX; AUDITORY-SENSITIVITY; RAT; NUCLEUS; CAT; NERVE; ORGANIZATION; LATENCY; PATHWAY; NOISE;
Keywords:
cochlear root neuron; acoustic startle response; single unit response;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Sinex, DG Arizona State Univ, Dept Speech & Hearing Sci, POB 871908, Tempe, AZ 85287USA Arizona State Univ POB 871908 Tempe AZ USA 85287 pe, AZ 85287USA
Citazione:
D.G. Sinex et al., "Electrophysiological responses of cochlear root neurons", HEARING RES, 158(1-2), 2001, pp. 28-38

Abstract

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 previouslybeen 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 2.2ms. 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. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 16:07:15