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Título: Increase in sexual motivation throughout adolescence in the cycling female rat
Autor: Armas, Magdalena
Marín, Gabriella
Uriarte, Natalia
Agrati, Daniella
Tipo: Preprint
Palabras clave: Adolescence, Female rat, Sexual behavior, Sexual motivation, Ultrasonic vocalization
Fecha de publicación: 2021
Resumen: Sexual behavior in the female rat is a highly motivated behavior first displayed during adolescence, a developmental period when neural circuits underlying motivation are not mature. This study characterizes the natural development of sexual motivation and behavior of female rats. We compared the incentive value of the male for mid-adolescent (PNDs:39-43), late adolescent (PNDs:49-53), and adult (PNDs:90-115) cycling females, using a male–female preference task and an ultrasonic vocalization emission test following exposure to a male or female stimulus animal. Furthermore, display of sexual and social behaviors during an interaction with a male or a nonreceptive female was assessed. Mid-adolescent rats exhibited a reduced preference for the male than adults and performed less attempts to access the male. Unlike late adolescent and adult females, mid-adolescent rats did not increase their ultrasonic vocalization emission after interacting with a male relative to a female. Although most of the sexual behavior did not differ between groups, mid-adolescent females showed lower lordosis magnitude and higher levels of play and social investigation during a sexual interaction, giving rise to a unique behavioral profile. Present results indicate that the sexual behavior repertoire is fully displayed by mid-adolescence, but sexual motivation is low and increases into late adolescence.
Descripción: Versión permitida: preprint
Financiadores: Agencia Nacional de Investigación e Innovación FCE_1_2017_1_136603
Citación: Armas, M, Marín, G, Uriarte, N y otros]. "Increase in sexual motivation throughout adolescence in the cycling female rat" [Preprint]. Publicado en: Developmental Psychobiology, 2021, 63(6): e22162. DOI: 10.1002/dev.22162
Aparece en las colecciones: Publicaciones académicas y científicas - Facultad de Ciencias

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