Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
HORMONES MAKE SONGS SEXUALLY ATTRACTIVE - HORMONE-DEPENDENT NEURAL CHANGES IN THE VOCAL CONTROL-SYSTEM OF SONGBIRDS
Autore:
GAHR M;
Indirizzi:
MAX PLANCK INST D-82319 SEEWIESEN GERMANY
Titolo Testata:
Zoology
fascicolo: 4, volume: 100, anno: 1997,
pagine: 260 - 272
SICI:
0944-2006(1997)100:4<260:HMSSA->2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
WHITE-CROWNED SPARROWS; ADULT FEMALE CANARIES; ZEBRA FINCH; SEASONAL-CHANGES; ESTROGEN-RECEPTORS; HIERARCHICAL ORGANIZATION; ANDROGEN RECEPTORS; PROJECTION NEURONS; CONTROL NUCLEUS; AVIAN BRAIN;
Keywords:
ANDROGENS; ESTROGENS; HVC; SINGING; COURTSHIP;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
104
Recensione:
Indirizzi per estratti:
Citazione:
M. Gahr, "HORMONES MAKE SONGS SEXUALLY ATTRACTIVE - HORMONE-DEPENDENT NEURAL CHANGES IN THE VOCAL CONTROL-SYSTEM OF SONGBIRDS", Zoology, 100(4), 1997, pp. 260-272

Abstract

The development of sexually attractive songs of songbirds can be explained by the following scenario: There is a genetic component that controls the expression of the androgen receptor (AR) and the estrogen receptor (ER) in the forebrain of songbirds. These receptors seem necessary for the development of the forebrain vocal control areas which arerequired for the singing of complex (learned) vocal pattern as they occur in sexually attractive songs. Gonadal steroid hormones, in particular, estrogens, are important for the functional differentiation of these forebrain areas during development. In adulthood, gonadal steroids act again on the vocal central areas: Hormone-dependent reversible changes of the morphology and physiology of forebrain vocal areas such as the nucleus hyperstriatalis ventralis (HVC) correlate with the hormone-dependent production of sexually attractive songs of male canaries. In females, the HVC appears to be part of a neural circuit that is involved in the control of sexual preferences to conspecific song displays. It is likely that estrogen-dependent reversible changes of auditory properties of HVC neurons account for motivational changes concerning the sexual response to male songs.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 19:42:26