During infancy, the baby and caretakers communicate through facial expressions and gestures and sounds. We described this process in detail previously. All babies have a universal, inherited, built-in signaling system with which they both send and receive signals. These signals are called feelings—such as enjoyment, surprise, anger, and fear. (The technical terms are “primary affects” or “categorical affects.”)Putting Words to Feelings … [Read more...] about Feelings: How and What Does a Baby Understand?