Mary S. Ainsworth was fascinated by the association between infants and their mothers and later invented infant-mother attachment theory. According to Ainsworth, there are three obvious attachment patterns that will help infants develop, secure, anxious, and avoidant. Ainsworth believed that it was absolutely necessary for a child to move from a mother's attachment and vulnerability to autonomy and independence as a factor in normal personality development. A key point of Ainsworth's security theory is that infants must "develop a sense of direction and dependence on their parents" before leaving the nest to finding yourself in a strange and unfamiliar situation (Bretherton, 1992). According to Ainsworth, “Family security in the early stages is of the dependent type and provides a basis from which the individual can gradually work, acquiring new skills and interest in other areas. » “Where family security is lacking, the individual is handicapped by the lack of what could be a secure base” (Bretherton, p. 4, 1992). Attachment Theory and Styles “Attachment theory provides an additional developmental model that emphasizes the importance of caregivers. “responsiveness for children’s emotional adjustment” (Cheng & Mallinckrodt, p. 366, 2009). Child-Mother Attachment To better understand attachment theory, Mary S. Ainsworth developed a concept developing the underlying behaviors that infants experience toward their mothers. Without a mother-child bond, an insecure attachment can develop, causing psychological and emotional stress. However, a maternal bond is necessary for an infant's healthy development. Without the necessary mother-infant bond, negative behaviors can arise, leading to difficulties in relationships, ne...... middle of paper ......ning parental bonds and changing attachment difficulties (Johnson , Maddeaux and Blouin, 1998). Mary S. Ainsworth's theory of attachment and relationship involving eating disorder behavior and how secure or avoidant attachment leads individuals to engage in eating disorder behaviors. Individuals experience psychological and emotional effects when confronted with the structure of family dynamics, family background, and childhood memories. Eating disorders are extremely difficult to overcome and have the highest mortality rate than any other psychiatric problem. However, family therapy is the most effective treatment, but it carries alarming risks because the individual must address the underlying issues causing the eating disorder, which can be psychologically and physically painful for some, leading to suicide (Ringer and Crittenden)., 2007).