When a caregiver responds appropriately to an infant, and the caregiver and the child's emotional states match?

When a caregiver responds appropriately to an infant, and the caregiver and the child's emotional states match, it is called interactional synchrony.

Interactional synchrony is synchronised behavior exchanged between a caretaker and an infant. For example, a caregiver may smile in response to an infant's laughter, and vice versa.

just don't strip down in public lol

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.