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.
Gordon Neufeld
Gordon Neufeld (1946) is a developmental psychologist and author of the book "Hold on to Your Kids: Why Parents Need to Matter More Than Peers" (co-authored with Canadian physician Gabor Maté) that has been translated into 10 languages.
The Neufeld approach (his attachment-based developmental model) is based on the attachment theory formulated by John Bowlby.
He developed a theory of attachment that includes six stages in the development of the capacity for relationship, the construct of polarization that explains both shyness and defensive detachment. His model of attachment is universal in both its application (adults as well as children) and implementation (school as well as home).