Bowlby (1946) described the attachment bond as monotropic, that is, it is established between an infant and one other person. Whilst other relationships are formed, these are qualitatively different from the primary attachment relationship and do not have the same impact on later emotional development. This bond develops from around seven months of age and is synchronous with the age at which an infant learns to crawl.
Bowlby suggested that here, an attachment provides a purpose in that it provides a secure base from which to explore. Building on Bowlby’s ideas, Robertson & Robertson (1971) demonstrated how the existence of an infants’ attachment to a person was reflected in the amount of distress an infant showed when they were separated from an attachment figure. The term separation anxiety was used to describe this reaction which, coupled with a marked
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