If you want to see the system in action, just try engaging a two-year-old in play. If you go to a friend’s house and meet her child for the first time, it should take only a minute. The child feels secure in his familiar surroundings, and his mother functions as what Bowlby called a “secure base”—an attachment figure whose presence guarantees safety, turns off fear, and thereby enables the explorations that lead to healthy development. But if your friend brings her son over to your house for the first time, it will take longer. You’ll probably have to walk around your friend just to find the
...more