Noradrenergic system of the zebra finch brain: Immunocytochemical study of dopamine-β-hydroxylase

Claudio Mello, Raphael Pinaud, Sidarta Ribeiro

Research output: Contribution to journalArticle

107 Citations (Scopus)

Abstract

Oscine birds are among the few animal groups that have vocal learning, and their brains contain a specialized system for song learning and production. We describe here the immunocytochemical distribution of dopamine- β-hydroxylase (DBH), a noradrenergic marker, in the brain of an oscine, the zebra finch (Taeniopygia guttata). DBH-positive cells were seen in the locus coeruleus, the nucleus subcoeruleus ventralis, the nucleus of the solitary tract, and the caudolateral medulla. Immunoreactive fibers and varicosities had a much wider brain distribution. They were particularly abundant in the hippocampus, septum, hypothalamus, area ventralis of Tsai, and substantia nigra, where they formed dense pericellular arrangements. Significant immunoreactivity was observed in auditory nuclei, including the nucleus mesencephalicus lateralis pars dorsalis, the thalamic nucleus ovoidalis, field L, the shelf of the high vocal center (HVC), and the cup of the nucleus robustus archistriatalis (RA), as well as in song control nuclei, including the HVC, RA, the lateral magnocellular nucleus of the anterior neostriatum, and the dorsomedial nucleus (DM) of the intercollicular complex. Except for the DM, DBH immunoreactivity within song nuclei was comparable to that of surrounding tissues. Conspicuously negative were the lobus paraolfactorius, including song nucleus area X, and the paleostriatum. Our results are in agreement with previous studies of the noradrenergic system performed in nonoscines. More importantly, they provide direct evidence for a noradrenergic innervation of auditory and song control nuclei involved in song perception and production, supporting the notion that noradrenaline is involved in vocal communication and learning in oscines.

Original languageEnglish (US)
Pages (from-to)207-228
Number of pages22
JournalJournal of Comparative Neurology
Volume400
Issue number2
DOIs
StatePublished - Oct 19 1998
Externally publishedYes

Fingerprint

Finches
Equidae
Music
Mixed Function Oxygenases
Dopamine
Songbirds
High Vocal Center
Brain
Mediodorsal Thalamic Nucleus
Learning
Neostriatum
Thalamic Nuclei
Solitary Nucleus
Globus Pallidus
Locus Coeruleus
Substantia Nigra
Hypothalamus
Birds
Hippocampus
Norepinephrine

Keywords

  • Avian
  • Catecholamines
  • HVC
  • Norepinephrine
  • Song system
  • Songbirds

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Noradrenergic system of the zebra finch brain : Immunocytochemical study of dopamine-β-hydroxylase. / Mello, Claudio; Pinaud, Raphael; Ribeiro, Sidarta.

In: Journal of Comparative Neurology, Vol. 400, No. 2, 19.10.1998, p. 207-228.

Research output: Contribution to journalArticle

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