A feeling response to the world around us 

Uncontrollable crying by an otherwise healthy baby 

A condition in which partially digest food rises in the throat

A baby’s bond to his or her main caregiver

A person’s unique emotional makeup 

The process of learning how to interact and express oneself with others

A condition in which babies do not grow and develop properly

A relationship between events in which one event, the effect, is caused by another event

to base behavior on someone else; to teach through example

the fear of unfamiliar people, usually expressed by crying

a comfortable space free of dangers and with toys that are safe and interesting

essential; very important

to delay or obstruct the development of someone or something

an example or precedent

to provide a reason to do something