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A new set of experiments led by researchers at New York University’s Grossman School of Medicine includes round-the-clock photography of female mice interacting with their newborns and unmated female mice
.
At the same time, they conducted electrical measurements on several areas of the brain that are known to produce oxytocin or are thought to be responsive to oxytocin
The results of this research were published in the August 11 issue of Nature
.
This article describes a behavior they call "unseen before", in which new female rats send unmated female rats and their pups into the home nest together
.
Within 24 hours, these female rats began to imitate the behavior of the mother rats, gathering the mother rats' pups into the nest, even if the mother rats were not there
In this study, the researchers also analyzed nearly 5,000 hours (over 6 months) of video clips that recorded dozens of female mice interacting with their pups and unmated female mice
.
The research team also tested the brain electrical activity of unmated female rats during this period and later when they themselves became mothers
.
They found that the sight and sound of crying pups stimulated the secretion of oxytocin in the hypothalamic paraventricular nucleus (PVN), a specific area of the brain
"Our research shows that in mice, the best way to be a mother is to observe and learn from experienced mothers," said Robert Fromm, a senior researcher and professor at the Institute of Biomolecular Medicine at New York University Langone School of Health.
Dr.
Ke said, “Given these evidences, we believe that similar mechanisms are also at work in human mothers
.
”
Frommke said the findings in rodents provide scientific evidence for the benefits of parenting courses observed in humans
.
He said that the next step for the research team is to investigate whether the same coaching relationship exists between males and males
"This work redefines the role of oxytocin in brain function and expands its impact to include powerful and complex social networking activities that force the brain to concentrate and adapt to the environment at the time, whether it is for crying or happiness.
React to the feeling
.
"
DOI
10.
Article title
Oxytocin neurons enable social transmission of maternal behaviour
