What Is Attachment Theory?
Attachment theory, first developed by psychologist John Bowlby and later expanded by Mary Ainsworth, explains how early caregiving relationships shape emotional development (Bowlby, 1988; Ainsworth & Bell, 1970). Human infants are biologically wired to seek closeness to caregivers for safety and survival. But this bond goes far beyond physical protection — it becomes the foundation for emotional security.
When children experience consistent warmth, comfort, and responsiveness, they develop a sense of safety. They learn that the world is generally predictable and that their needs matter. This creates a secure attachment, allowing them to explore life with confidence.
When caregiving is inconsistent, emotionally unavailable, intrusive, or frightening, children adapt in creative ways to protect themselves. These adaptations form insecure attachment styles — not as flaws, but as intelligent survival strategies shaped by early experiences (Ainsworth & Bell, 1970; Van der Kolk, 2014).