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Titolo:
Lesions of a telencephalic nucleus in male zebra finches: Influences on vocal behavior in juveniles and adults
Autore:
Foster, EF; Bottjer, SW;
Indirizzi:
Univ So Calif, Dept Biol, Los Angeles, CA 90089 USA Univ So Calif Los Angeles CA USA 90089 pt Biol, Los Angeles, CA 90089 USA
Titolo Testata:
JOURNAL OF NEUROBIOLOGY
fascicolo: 2, volume: 46, anno: 2001,
pagine: 142 - 165
SICI:
0022-3034(20010205)46:2<142:LOATNI>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SONG-CONTROL NUCLEI; AXONAL CONNECTIONS; FOREBRAIN NUCLEUS; POEPHILA-GUTTATA; ESTROGEN ACCUMULATION; TAENIOPYGIA-GUTTATA; CONTROL-SYSTEM; MAINTENANCE; NEURONS; CANARY;
Keywords:
lesions; ibotenic acid; cortex; basal ganglia; songbirds; vocal learning; audition;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Bottjer, SW Univ So Calif, Dept Biol, Los Angeles, CA 90089 USA Univ So Calif Los Angeles CA USA 90089 Angeles, CA 90089 USA
Citazione:
E.F. Foster e S.W. Bottjer, "Lesions of a telencephalic nucleus in male zebra finches: Influences on vocal behavior in juveniles and adults", J NEUROBIOL, 46(2), 2001, pp. 142-165

Abstract

Male zebra finches learn to sing during a restricted phase of juvenile development, Song learning is characterized by the progressive modification ofunstable song vocalizations by juvenile birds during development, a process that leads to the production of stereotyped vocal patterns as birds reachadulthood. The medial magnocellular nucleus of the anterior neostriatum (mMAN) is a Small cortical region that has been implicated in song behavior based on its neuronal projection to the High Vocal Center (RVC), a nucleus that is critical for adult vocal production and presumably also plays a rolein song learning. To assess the function of mMAN in song, ibotenic acid lesions of this brain region were made in juvenile male zebra finches during the period of vocal learning (40-50 days of age) and in adult males that were producing stable song (>90 days of age). Birds lesioned as juveniles produced highly abnormal,poor quality song as adults. Although the overall song quality of birds lesioned as adults was not highly disrupted or abnormal,the postoperative song behavior of these birds was discernibly different due to slight increases in variability of vocal production, particularly at the onset of singing. These results demonstrate that mMAN plays some important role in vocal production during the sensitive period for song learning,and is also important for consistent initiation and stereotyped productionof adult song behavior. (C) 2001 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 07:38:25