When a mother takes the life of her child — especially after birth — it flies in the face of what we believe about the maternal instinct. An article at Scientific American highlights some new research on the subject, and it’s raising eyebrows.
Dario Maestripieri has spent most of his career studying maternal behavior in primates. In particular, he’s focused on the factors that influence a mother’s motivation towards her young…. His latest paper is scheduled to be published in early 2011 by the American Journal of Primatology. In it Maestripieri lays out the argument he’s built over the last two decades showing how one of the most serious impacts on maternal behavior, one with potentially lethal results, is so common in modern life as to be nearly invisible: stress.
[P]eriods of long term or excessive stress can cause serious physiological damage and an increased susceptibility to disease. It can also result in what Maestripieri calls the “dysregulation of emotion,” or turning what would be an otherwise adaptive response into a potentially dangerous overreaction.
“A large body of evidence,” Maestripieri says, “indicates that extremely high or chronically elevated cortisol levels due to stress can impair maternal motivation and result in maladaptive parenting behavior.”
Read the entire article here.
(Hat tip: 3QuarksDaily)