Ontogeny of the Dyad: the Relationship Between Maternal and Offspring Neuroendocrine Function.

Abstract

We review ontogeny of the maternal-offspring neuroendocrine relationship in human pregnancy. We present bidirectional genetic, physiological, and behavioral influences that enhance or disrupt HPA activity and its end product cortisol at the individual level and within the dyad. Consistent evidence supports that maternal mood and caregiving behavior are associated with maternal and offspring cortisol levels. Select studies support the buffering effects of antidepressant use and maternal positive affect on offspring cortisol. Growing research highlights evocative effects of fetalneuroendocrine activity, antenatalgene transfer, andinfantbehavioral distress and risk characteristics on maternal cortisol levels and dyadic attunement. There is potential to advance our understanding of the mother-offspring neuroendocrine relationship by consideration of other neuroactivesteroids in addition to cortisol, and to consider developmental timing and measurement source in study design. Future study should emphasize in what context or for whom neuroendocrine attunement is adaptive versus maladaptive for mother and child.