Definition:
A theoretical framework for understanding the onset of maternal behavior in species that avoid infants prior to giving birth to their own. The model was developed based on data from rats and posits that care giving behavior occurs when the tendency to approach infants is greater than the tendency to avoid them. Thus, the model indicates that two distinct processes regulate the onset of maternal care. Mother-infant bonding at birth results not only from an increase in attraction to infant cues but also from a reduction of aversion to them.