Developmental psychology
Attachment theory, originally developed by John Bowlby, focuses on the importance of open, intimate, emotionally meaningful relationships. Attachment is described as a biological system or powerful survival impulse that evolved to ensure the survival of the infant. A child who is threatened or stressed will move toward caregivers who create a sense of physical, emotional and psychological safety for the individual. Attachment feeds on body contact and familiarity. Later Mary Ainsworth developed the Strange Situation protocol and the concept of the secure base.
Attachment therapy
Attachment therapy is a controversial category of alternative child mental health interventions intended to treat attachment disorders. The term generally includes accompanying parenting techniques. Other names or particular techniques include "the Evergreen model", "holding time", "rage-reduction", "compression therapy", "rebirthing", "corrective attachment therapy" and Coercive Restraint Therapy. It is found primarily in the United States, and much of it is centered in about a dozen clinics in Evergreen, Colorado, where Foster Cline, one of the founders, established his clinic in the 1970s. This article describes this particular set of interventions although in clinical literature the term "attachment therapy" is sometimes used loosely to mean any intervention based on attachment theory, particularly outside the US. Attachment therapy as described in this article should not be confused with other schools of therapy which are more empirically based and which aim to address problems stemming from disrupted attachment to caregivers.