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.
Attachment disorder
Attachment theory is primarily an evolutionary and ethological theory. In relation to infants, it primarily consists of "proximity seeking" to an "attachment figure" in the face of threat, for the purpose of survival. Although an attachment is a "tie," it is not synonymous with love and affection, despite their often going together and a healthy attachment is considered to be an important foundation of all subsequent relationships. Infants become attached to adults who are sensitive and responsive in social interactions with the infant, and who remain as consistent caregivers for some time. Parental responses lead to the development of patterns of attachment which in turn lead to 'internal working models' which will guide the individual's feelings, thoughts and expectations in later relationships.