Comportamento parental, paternal, maternal

In the original study, published last year in Evolution and Human Behavior, psychologist Anne Storey, Ph.D., and her colleagues took blood samples from 34 couples at different times during pregnancy and shortly after birth. The researchers chose to monitor three specific hormones because of their links to *nurturing behavior* in human mothers and in animal fathers.

The first hormone, prolactin, gets its name from the role it plays in promoting lactation in women, but it also instigates *parental behavior* in a number of birds and mammals. Mate doves who are given prolactin start brooding and feeding their young. Storey found that in human fathers, prolactin levels rise by approximately 20 percent during the three weeks before their partners give birth.

http://www.medicinenet.com/script/main/art.asp?articlekey=36...

Effects of dopamine receptor antagonism with haloperidol on nurturing behavior in the biparental prairie vole.

Dopamine (DA) receptor activity in lactating rats is critical for retrieval and licking of pups, whereas its inactivity facilitates quiescent nursing. The role of DA in the maternal behavior of other species and its role in paternal behavior are unknown. This experiment examined the effects of the DA antagonist haloperidol (HAL) on parental behavior in the biparental prairie vole (Microtus ochrogaster). Three days after birth of pups, parental behavior of male and female voles was observed for 30 min beginning 1 h after intraperitoneal injection of 0.1, 0.5, or 2.5 mg/kg of HAL.

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&d...

INSTINTO MATERNAL - Maestripieri estudou o sistema reprodutivo e o comportamento paternal em macacos e humanos. As fêmeas estudadas e que foram expostas a um cuidado maternal intenso durante a infância desenvolveram mais cedo o interesse em crianças, assim como uma taxa mais alta de hormônios relacionados ao estresse durante o crescimento. Segundo Maestripieri, o mesmo acontece com as adolescentes humanas.

http://www.diariodopara.com.br/DiariodaFamilia/Fa_04.asp

Hormônios e comportamento parental.

www.comportamento.ufjf.br/revista/v4n2/artigo8.pdf




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Note added at 41 mins (2005-03-21 14:05:23 GMT)
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