Siri Hustvedt

As one of four daughters, I grew up with an imaginary brother - wondering what it would have been like if one of us had been a boy. There's no question that there was a phantom boy child in my imagination when I was young.

Both depression and anxiety disorders, for example, are repeatedly described in the media as 'chemical imbalances in the brain,' as if spontaneous neural events with no relation to anything outside a person's brain cause depression and anxiety.

It is only when you watch the dense mass of thousands of ants, crowded together around the Hill, blackening the ground, that you begin to see the whole beast, and now you observe it thinking, planning, calculating. It is an intelligence, a kind of live computer, with crawling bits for its wits.