theory and Ainsworth types of attachment.
The history of the attachment theory dates back to 1930, Bowlby was intrigued by the impact deprivation or complete absence of parental care has on later personality development. (Bretherton, 1992). The importance of an infant’s relationship with his or her mother for future behavior was further evident in 1946 when Bowlby studied juvenile thieves. After discussing with colleagues from different fields, such as evolutionary biology, ethology, developmental psychology, cognitive science and control systems theory, Bowlby devised the foundations for the attachment theory (Cassidy, 1999).