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Titolo:
Molecular mapping of brain areas involved in parrot vocal communication
Autore:
Jarvis, ED; Mello, CV;
Indirizzi:
Duke Univ, Med Ctr, Dept Neurobiol, Durham, NC 27710 USA Duke Univ DurhamNC USA 27710 d Ctr, Dept Neurobiol, Durham, NC 27710 USA Rockefeller Univ, Lab Anim Behav, New York, NY 10021 USA Rockefeller UnivNew York NY USA 10021 Anim Behav, New York, NY 10021 USA
Titolo Testata:
JOURNAL OF COMPARATIVE NEUROLOGY
fascicolo: 1, volume: 419, anno: 2000,
pagine: 1 - 31
SICI:
0021-9967(20000327)419:1<1:MMOBAI>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
BUDGERIGAR MELOPSITTACUS-UNDULATUS; IMMEDIATE-EARLY GENE; PIGEON COLUMBA-LIVIA; MALE ZEBRA FINCHES; SONG CONTROL-SYSTEM; AUDITORY PATHWAYS; FIELD-L; TAENIOPYGIA-GUTTATA; AXONAL CONNECTIONS; BASAL GANGLIA;
Keywords:
immediate early genes; evolution; neuroethology; parakeet; song system; avian species;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
122
Recensione:
Indirizzi per estratti:
Indirizzo: Jarvis, ED Duke Univ, Med Ctr, Dept Neurobiol, Box 3209, Durham, NC 27710 USA Duke Univ Box 3209 Durham NC USA 27710 09, Durham, NC 27710 USA
Citazione:
E.D. Jarvis e C.V. Mello, "Molecular mapping of brain areas involved in parrot vocal communication", J COMP NEUR, 419(1), 2000, pp. 1-31

Abstract

Auditory and vocal regulation of gene expression occurs in separate discrete regions of the songbird brain. Here we demonstrate that regulated gene expression also occurs during vocal communication in a parrot, belonging to an order whose ability to learn vocalizations is thought to have evolved independently of songbirds. Adult male budgerigars (Melopsittacus undulatus) were stimulated to vocalize with playbacks of conspecific vocalizations (warbles), and their brains were analyzed for expression of the transcriptional regulator ZENK. The results showed that there was distinct separation of brain areas that had hearing- or vocalizing-induced ZENK expression. Hearing warbles resulted in ZENK induction in large parts of the caudal medial forebrain and in 1 midbrain region, with a pattern highly reminiscent of thatobserved in songbirds. Vocalizing resulted in ZENK induction in nine brainstructures, seven restricted to the lateral and anterior telencephalon, one in the thalamus, and one in the midbrain, with a pattern partially reminiscent of that observed in songbirds. Five of the telencephalic structures had been previously described as part of the budgerigar vocal control pathway. However, functional boundaries defined by the gene expression patterns for some of these structures were much larger and different in shape than previously reported anatomical boundaries. Our results provide the first functional demonstration of brain areas involved in vocalizing and auditory processing of conspecific sounds in budgerigars. They also indicate that, whether or not vocal learning evolved independently, some of the gene regulatory mechanisms that accompany learned vocal communication are similar in songbirds and parrots. J. Comp. Neurol. 419:1-31, 2000. (C) 2000 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 06:55:01