Everything you've wanted to know about object permanence, including how to help your baby develop this skill. If you have ever played a game of peek-a-boo with your baby or hidden a toy under a ...

Why do babies love peekaboo so much? It may be because when you hide your face, they think it has ceased to exist. That’s according to Swiss psychologist Jean Piaget’s theories about “object ...

I recently was asked to give a lecture concerning various styles of communication, with a focus on one of the following topics: "communicating with young children" or "communicating with colleagues." ...

Things continue to exist even when we can’t see them, but until we’re old enough to understand that notion, it’s out of sight, out of mind. Object permanence is one of those things we figure out when ...

The work of Jean Piaget shaped our understanding of cognitive development in children, and it also gave us several tasks that we can use to study other animals. One classic issue studied by Piaget is ...