Mice study shows middle-brain region prompts females to kill or care for their young nyulangone nature
The investigation also revealed that the BNSTpr appears to work in opposition to a brain region called the medial preoptic area , itself known to promote mothering behavior. According to the findings, mice that had not yet reached motherhood showed high BNSTpr activity, which dampened activity in the MPOA. After the mice gave birth, however, MPOA activity ramped up, likely suppressing the infanticidal system in the process.
According to the U.S. Centers for Disease Control and Prevention, child abuse is the fourth leading cause of death amongin the United States. Mei notes that while early studies had largely focused on potential problems in the parenting centers of the brain, experts have more recently begun to search for a separate system dedicated to infanticide and aggression against children.
"Since these two connecting regions in the middle of the brain can be found in both rodents and humans alike, our findings hint at a possible target for understanding, and perhaps even treating, mothers who abuse their children," said study senior author and neuroscientist Dayu Lin, Ph.D.
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