The medial extended amygdala in male reproductive behavior. A node in the mammalian social behavior network.
Ann N Y Acad Sci
; 877: 242-57, 1999 Jun 29.
Article
em En
| MEDLINE
| ID: mdl-10415653
ABSTRACT
Hormonal and chemosensory signals regulate social behaviors in a wide variety of mammals. In the male Syrian hamster, these signals are integrated in nuclei of the medial extended amygdala, where olfactory and vomeronasal system transmission is modulated by populations of androgen- and estrogen-sensitive neurons. Evidence from behavioral changes following lesions and from immediate early gene expression supports the hypothesis that the medial extended amygdala and medial preoptic area belong to a circuit that functions selectively in male sexual behavior. However, accumulated behavioral, neuroanatomical, and neuroendocrine data in hamsters, other rodents, and other mammals indicate that this circuit is embedded in a larger integrated network that controls not only male mating behavior, but female sexual behavior, parental behavior, and various forms of aggression. In this context, perhaps an individual animal's social responses can be more easily understood as a repertoire of closely interrelated, hormone-regulated behaviors, shaped by development and experience and modulated acutely by the environmental signals and the hormonal milieu of the brain.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Reprodução
/
Comportamento Sexual Animal
/
Comportamento Social
/
Encéfalo
/
Mamíferos
Limite:
Animals
Idioma:
En
Revista:
Ann N Y Acad Sci
Ano de publicação:
1999
Tipo de documento:
Article
País de afiliação:
Estados Unidos