Early Environments Shape Neuropeptide Function: The Case of Oxytocin and Vasopressin.

Oxytocin (OT) and vasopressin (AVP) are neuropeptides that govern the social-emotional functioning of humans. We contend that to fully understand their function, research should consider how they are flexibly fitted to maximize survival and reproduction given the variety of human experience. In a series of two studies, we show that early life stress is associated with change in the core function of OT and AVP in evolutionary predictable ways: Under high early life stress, AVP promotes threat-detection capabilities, whereas OT motivates non-selective proximity seeking to others.

The link between attachment orientations and cellular aging among former prisoners of war.

: Ex-prisoners of war (ex-POWs) experience prolonged distress that in some cases may influence their cellular aging (telomere length). The current research examines whether attachment orientations of ex-POWs and their spouses can explain individual differences in telomere length 40 years after the experience of captivity.: Eighty-eight Israeli ex-POWs were assessed at four time points since captivity, whereas their spouses at three time points.