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Titolo:
The cytoarchitecture of the nucleus angularis of the barn owl (Tyto alba)
Autore:
Soares, D; Carr, CE;
Indirizzi:
Univ Maryland, Dept Biol, College Pk, MD 20740 USA Univ Maryland College Pk MD USA 20740 Dept Biol, College Pk, MD 20740 USA
Titolo Testata:
JOURNAL OF COMPARATIVE NEUROLOGY
fascicolo: 2, volume: 429, anno: 2001,
pagine: 192 - 205
SICI:
0021-9967(20010108)429:2<192:TCOTNA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANTEROVENTRAL COCHLEAR NUCLEUS; STEM AUDITORY NUCLEI; SUPERIOR OLIVARY NUCLEUS; BRAIN-STEM; SOUND LOCALIZATION; RESPONSE PROPERTIES; HORSERADISH-PEROXIDASE; NEURONAL ARCHITECTURE; COINCIDENCE DETECTION; GABAERGIC NEURONS;
Keywords:
auditory system; brainstem; nucleus angularis; avian;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
89
Recensione:
Indirizzi per estratti:
Indirizzo: Soares, D Univ Maryland, Dept Biol, College Pk, MD 20742 USA Univ Maryland College Pk MD USA 20742 College Pk, MD 20742 USA
Citazione:
D. Soares e C.E. Carr, "The cytoarchitecture of the nucleus angularis of the barn owl (Tyto alba)", J COMP NEUR, 429(2), 2001, pp. 192-205

Abstract

The cochlear nucleus angularis (NA) of the barn owl (Tyto alba) was analyzed using Golgi, Nissl, and tract tracing techniques. NA forms a column of cells in the dorsolateral brainstem that partly overlaps with, and is rostral and lateral to, the cochlear nucleus magnocellularis (NM). Highest best frequencies are mapped in lateral NA (NAI), intermediate in medial NA (NAm),and lowest in the foot region (NAf). Cell density followed the tonotopic axis and decreased with decreasing best frequency. NA contained four major cell classes: planar, radiate, vertical, and stubby. Planar and radiate classes were further subdivided into bipolar and multipolar types according to their number of primary dendrites. Planar neurons were confined to an isofrequency band, whereas radiate neurons had dendrites that could extend across an isofrequency band. Vertical cells had long dendrites oriented perpendicularly to isofrequency bands. Stubby cells were the most numerous and wereconfined to an isofrequency band because of their short dendrites. Neuronsin each of these four classes projected to the inferior colliculus and dorsal nucleus of the lateral lemniscus. J. Comp. Neurol. 429:192-205, 2001. (C) 2001 Wiley-Liss, Inc.

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Documento generato il 02/07/20 alle ore 18:35:24