Internal working model of attachment
Internal working model of attachment is a psychological approach that attempts to describe the development of mental representations, specifically the worthiness of the self and expectations of others' reactions to the self. This model is a result of interactions with primary caregivers which become internalized, and is therefore an automatic process. John Bowlby implemented this model in his attachment theory in order to explain how infants act in accordance with these mental representations. It is an important aspect of general attachment theory.
Nurture kinship
Within the discipline of psychology, the formation of social and emotional ties are treated by attachment theory. Drawing on animal studies from the 1950s onwards, John Bowlby and colleagues described how—for all primates, including humans—the reliable provision of nurture and care leads to strong bonds of attachment between the carer and cared-for.