TY - JOUR
T1 - Early and later adoptions differently modify mother-pup interactions
AU - Darnaudéry, Muriel
AU - Cabib, Simona
AU - Koehl, Muriel
AU - Barbazanges, Arnaud
AU - Le Moal, Michel
AU - Maccari, Stefania
PY - 2004/6
Y1 - 2004/6
N2 - Life events occurring during the perinatal period have strong long-term effects. In rats, prenatal stress, postnatal maternal separations, or adoptions at different periods are known to affect behavior and reactivity to stress in offspring. To determine the role of maternal factors on differential outcome adoptions, the authors investigated interactions between pups and the adopting mothers by assessing both pups' ultrasound emissions and maternal behavior. Early and late adoptions increased mother care at the moment of adoption and during mother-infant reunion after a separation procedure. However, although early adoption induced a decrease in pups' ultrasound emissions in response to a stressful separation, later adoptions enhanced it. Results suggest a sensitive period during which fostering may change pups' and dams' behavior.
AB - Life events occurring during the perinatal period have strong long-term effects. In rats, prenatal stress, postnatal maternal separations, or adoptions at different periods are known to affect behavior and reactivity to stress in offspring. To determine the role of maternal factors on differential outcome adoptions, the authors investigated interactions between pups and the adopting mothers by assessing both pups' ultrasound emissions and maternal behavior. Early and late adoptions increased mother care at the moment of adoption and during mother-infant reunion after a separation procedure. However, although early adoption induced a decrease in pups' ultrasound emissions in response to a stressful separation, later adoptions enhanced it. Results suggest a sensitive period during which fostering may change pups' and dams' behavior.
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U2 - 10.1037/0735-7044.118.3.590
DO - 10.1037/0735-7044.118.3.590
M3 - Article
C2 - 15174937
AN - SCOPUS:2542475142
VL - 118
SP - 590
EP - 596
JO - Behavioral Neuroscience
JF - Behavioral Neuroscience
SN - 0735-7044
IS - 3
ER -