Attachment is defined as a close 2-way emotional bond between 2 individuals in which each individual sees the other as essential for emotional security
reciprocity is the 2 way interaction between caregiver and infant, in which they respond to each other’s signals to sustain interaction
interactional synchrony is when the infant and caregiver are in synchrony with each other, reflecting each other’s actions and emotions
the purpose of interactional synchrony and reciprocity is to help the child to develop secure attachments with caregiver
meltzoff and Moore observed babies as young as 2 weeks attempted to mirror their caregivers expressions (interactional synchrony evidence)
Brazleton found that children as young as 2 weeks attempted to copy & communicate with caregivers (reciprocity evidence)