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Titolo:
Spatial organization of the reciprocal connections between the cat dorsal and anteroventral cochlear nuclei
Autore:
Ostapoff, EM; Morest, DK; Parham, K;
Indirizzi:
Univ Connecticut, Ctr Hlth, Dept Anat, Farmington, CT 06030 USA Univ Connecticut Farmington CT USA 06030 t Anat, Farmington, CT 06030 USA Univ Connecticut, Ctr Hlth, Ctr Neurol Sci, Farmington, CT 06030 USA Univ Connecticut Farmington CT USA 06030 ol Sci, Farmington, CT 06030 USA Univ Connecticut, Ctr Hlth, Dept Surg, Farmington, CT 06030 USA Univ Connecticut Farmington CT USA 06030 t Surg, Farmington, CT 06030 USA
Titolo Testata:
HEARING RESEARCH
fascicolo: 1-2, volume: 130, anno: 1999,
pagine: 75 - 93
SICI:
0378-5955(199904)130:1-2<75:SOOTRC>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
GLYCINE-IMMUNOREACTIVE PROJECTIONS; SUPERIOR OLIVARY COMPLEX; GLOBULAR BUSHY CELLS; BRAIN-STEM NUCLEI; GUINEA-PIG; INFERIOR COLLICULUS; DESCENDING PROJECTIONS; HORSERADISH-PEROXIDASE; RETROGRADE TRANSPORT; NERVE ROOT;
Keywords:
auditory system; inhibitory sideband; local circuit;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
66
Recensione:
Indirizzi per estratti:
Indirizzo: Ostapoff, EM Univ Connecticut, Ctr Hlth, Dept Anat, Farmington, CT 06030 USA Univ Connecticut Farmington CT USA 06030 ngton, CT 06030 USA
Citazione:
E.M. Ostapoff et al., "Spatial organization of the reciprocal connections between the cat dorsal and anteroventral cochlear nuclei", HEARING RES, 130(1-2), 1999, pp. 75-93

Abstract

We are studying the interconnections between the anteroventral cochlear nucleus (AVCN) and the dorsal cochlear nucleus (DCN). Biotinylated dextran was injected into the DCN, where the best frequency of responses was also recorded. Ventrotubercular neurons in AVCN were labeled, along with cochlear nerve fibers and the axons of cells in DCN. In AVCN, a central band of labeled cochlear nerve axons and large endbulbs was labeled. Bordering this bandwas a 'fringe' of smaller tuberculoventral axonal endings forming pericellular nests. Most AVCN neurons projecting to DCN were stellate, elongate, orgiant cells, located in the posterior division of AVCN, regardless of the DCN injection site. About 75% of the labeled AVCN cells lay within the bands of labeled cochlear nerve fibers. Another 15% were in the outer fringes on either side of these bands, while 10% were outside the bands and the fringes. These findings suggest that most AVCN neurons projecting to the DCN conform to the tonotopic map. A significant portion of the ventrotubercular neurons occupy side-bands in AVCN. Reciprocally, the tuberculoventral tract forms a robust fringe of axonal endings flanking the central bands. The neuronal and axonal bands and side-bands may underlie excitatory and inhibitory signal transformations. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

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Documento generato il 28/09/20 alle ore 01:34:17