Manuel Perez-Sanchez has presented a very vivid description of a baby's
first year of life. Direct observational material is lent understanding
through the combination of his and Esther Bick's thoughts regarding the
weekly infant observations. We read how the baby progresses from a state
of unintegration in which the anxious baby requires the containing
presence of the parents and uses primitive bodily methods of providing
protection against anxiety in their absence. We then move to a more
comfortable stage in which the baby has introjected the parents as
providing a sense of internal security. We see how each step in the
baby's development involves a reciprocal change in the parents'
relationship to the baby.