All Infant and Child Social Bonds

Secure attachment is classified by children who show some distress when their caregiver leaves but are able to compose themselves quickly when the caregiver returns.

Stranger anxiety is a form of distress that children experience when exposed to strangers.

Separation anxiety disorder (SAD) is an anxiety disorder in which an individual experiences excessive anxiety regarding separation from home and/or from people to whom the individual has a strong emotional attachment (e.g., a parent, caregiver, significant other, or siblings).

Joint attention or shared attention is the shared focus of two individuals on an object.

Parallel play is a form of play in which children engage in recreational activities adjacent to each other, without trying to influence one another's behavior.

The Westermarck effect, also known as reverse sexual imprinting, is a psychological hypothesis that states that people tend not to be attracted to peers with whom they lived like siblings before the age of six.

The Kewpie doll effect is a term used in developmental psychology derived from research in ethology to help explain how a child's physical features, such as lengthened forehead and rounded face, motivate the infant's caregiver to take care of them.