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.
Health realization
Health realization (HR) is a resiliency approach to personal and community psychology first developed in the 1980s by Roger C. Mills and George Pransky, and based on ideas and insights these psychologists elaborated from attending the lectures of philosopher and author Sydney Banks. HR first became known for its application in economically and socially marginalized communities living in highly stressful circumstances (see "Community Applications" below).