Reciprocity occurs between infants and carers resulting in mutual behaviour where both parties are able to generate a response from one another almost like a conversation.
An example of reciprocity is when a mother smiles and her baby smiles back.
Reciprocity between the infant and carer facilitate and strengthen the attachment bond.
Attachment is a two-way emotional bond between a caregiver and an infant characterised by behaviour such as proximity-seeking.
Meltzoff & Moore (1997) demonstrated that babies as young as 12-27 days attempt to imitate facial and physical gestures.
Interactional synchrony is when two people interact and tend to mirror what the other is doing in terms of their facial and body movements.