Object permanence

Hey guys, I found this great website on object permanence. Object permanence is the understanding  that an object still exists even if it is not being observed by your senses. An example of this would be when you’re playing “peek a boo” with a baby. When you hide your face behind your hands, if the child doesn’t have object permanence, you do not exist to the child. Once they understand object permanence, they will understand that just because you are hiding, doesn’t mean you disappeared.