Secure attachment develops when caregiving includes emotional attunement. Attunement starts at the most subtle physical levels of interaction between babies and their caretakers, and it gives babies the feeling of being met and understood. As Edinburgh-based attachment researcher Colwyn Trevarthen says: “The brain coordinates rhythmic body movements and guides them to act in sympathy with other people’s brains. Infants hear and learn musicality from their mother’s talk, even before birth.”
