Multiple attachment – Have more than one attachment figure
Separation anxiety – The distress shown by an infant when separated from their caregiver. This is not necessarily the biological mother.
Primary attachment figure – The person who has formed the closest bond with a child, shown by the intensity of the relationship. This is usually the biological mother, but other people can fulfil the role.
Stranger anxiety – The distress show by an infant when approached or picked up by someone who is unfamiliar