Effects of acute maternal-filial separation on posterior maternal behavior in mice
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Show full item recordcomunitat-uji-handle:10234/158176
comunitat-uji-handle2:10234/71345
comunitat-uji-handle3:10234/163799
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Title
Effects of acute maternal-filial separation on posterior maternal behavior in miceAuthor (s)
Tutor/Supervisor; University.Department
Martínez García, Fernando; García Pardo, María Pilar; Universitat Jaume I. Unitat Predepartamental de Medicina.Date
2018-06-24Publisher
Universitat Jaume IAbstract
Maternal behavior ensures offspring’s survival, until the progeny arrives to sexual
maturity. This behavior is regulated by the socio-sexual brain, an interconnected
neural network that regulates social behaviors. ... [+]
Maternal behavior ensures offspring’s survival, until the progeny arrives to sexual
maturity. This behavior is regulated by the socio-sexual brain, an interconnected
neural network that regulates social behaviors. Different factors, like sensorial stimuli,
hormones, experience or environmental factors can influence in the activity of this
neural network to induce performance of maternal behavior. Among environmental
factors, stress might have important effects in several physiological factors as well in
behavior. Maternal-filial separation is known to cause an intense stress in pups which
is the cause of severe neuropsychiatric problems. However, the effects of maternalfilial separation on the mother have not been properly studied, even if it might also be
a stressful event for her.
The goal of the present study is to analyze the effect of a 3-hour episode of acute
maternal-filial separation (postpartum day 2) on three relevant aspects (experiments 1-
3) of maternal behavior: maternal aggression, maternal motivation and maternal care.
In all three experiments we compare the behavioral performance of two groups of
dams, separated and non-separated controls.
Separated mothers attack faster to castrated males than non-separated controls, thus
suggesting that separation stress increases maternal aggression. However, separation
from pups shows no effect on maternal motivation. Concerning maternal care, our
results indicate that separated mothers spend less time “on nest” and retrieve the pups
before as compared to non-separated controls. These results suggest that mothers
undergoing pup separation-induced stress are more anxious and consequently exhibit
a more protective maternal style and an increased aggressiveness. [-]
Subject
Description
Treball Final de Màster Universitari en Investigació en Cervell i Conducta. Codi: SBM024. Curs: 2017/2018
Type
info:eu-repo/semantics/masterThesisRights
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info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
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