It was an extremely powerful prototype/archetype in the person 's personality—many complexes and disorders could develop out of the prototype if the prototype were damaged or removed. If this relationship was broken or absent, there would be severe consequences for the psyche of the child including possible psychopathic tendencies. Bowlby 's belief in the fundamental effect of an absent mother attachment caused him to develop the “Maternal Deprivation Hypothesis” in 1952. The underlying assumption of Bowlby’s Maternal Deprivation Hypothesis is that continual disruption of the attachment between infant and primary caregiver (i.e. mother) could result in long term cognitive, social, and emotional difficulties for that infant (Fongay, 2010, p. …show more content…
He died September 2, 1990. His last book was published in 1990. It was a psychoanalytic biography of Charles Darwin, and included an attempt to provide an analytic reading of Darwin 's mysterious disease. John Bowlby created an influential group of theories on attachment and human development, which is still influential today. Bowlby is considered on of the most influential psychologists of the 20th century. He also was a generous researcher, as he trained and worked with my psychologists, helping them gain practical experience as well as theoretical knowledge. His work had a great impact on the field of public health, and he was an advocate for social programs to help children, including several years of work with the United