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.
Stan Tatkin
Stan Tatkin is the founder of the PACT Training Institute and the developer of PACT—A Psychobiological Approach to Couple Therapy. PACT is an integration of neuroscience, arousal regulation, and attachment theory. This therapy modality centers on early attachment and its effect on the development of the brain and the nervous system. Also, PACT encourages couples to participate in secure-functioning relationships, even if the individuals themselves do not have secure attachment.