The development of individuals with borderline personality disorder occurs during the rapprochement phase.
The rapprochement phase includes an infant's resolution of the ambivalence caused by their increasing independence and frustration caused by independence. As parents lower their vigilance in monitoring, children sense annoyance and stumble upon impediments to functioning.
The rapprochement spans approximately fifteen to twenty-four months and is characterized behaviorally with the aid of an energetic approach back to the caregiver. Kids begin to understand the bounds of their omnipotence and feature brand new attention in their separateness and the separateness of the caregiver.
Mahler proposed that early in development the child no longer has an idea of object constancy for the mom, which means when the mother disappears, she ceases to exist. This idea is just like Jean Piaget's theory of item permanence.
Learn more about Jean Piaget's theory here brainly.com/question/20355893
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