Attachment theory stems from psychologist John Bowlby's studies of maternal deprivation and animal behavior research in the early 1950s. Attachment theory says an infant instinctively seeks ...

After studying children brought up in orphanages and other institutions in the 1930s and 1940s, the British psychologist John Bowlby developed his maternal deprivation hypothesis. He suggested tha ...

This links to the "attachment theory" of British psychiatrist ... institutions in the 1930s and 1940s, Bowlby developed what he called the "maternal deprivation hypothesis." He suggested that ...