Alix Spiegel





All day long we're surrounded by faces. We see them on the subway sitting two by two, pass them on the sidewalk as we make our way to work, then nod to them in the elevator.

But most of those faces don't tell us much about the emotional life of the person behind the face.


To find out, you'd have to compare the emotions of one generation to another. British anthropologists think they may have found the answer — embedded in literature.

Several years ago, more or less on a lark, a group of researchers from England used a computer program to analyze the emotional content of books from every year of the 20th century — close to a billion words in millions of books.

Ever since she was a small child, Samantha Grimaldo has had to carry her voice with her.

Grimaldo was born with a rare disorder, Perisylvian syndrome, which means that though she's physically capable in many ways, she's never been able to speak. Instead, she's used a device to speak. She types in what she wants to say, and the device says those words out loud. Her mother, Ruane Grimaldo, says that when Samantha was very young, the voice she used came in a heavy gray box.



This story begins with a group of people who are expert at looking: the professional searchers known as radiologists.

"If you watch radiologists do what they do, [you're] absolutely convinced that they are like superhuman," says Trafton Drew, an attention researcher at Harvard Medical School.


About a month ago, Declan Procaccini's 10-year-old son woke him early in the morning in a fright.

"He came into my bedroom and said, 'Dad, I had a horrible, horrible dream!' " Procaccini says. "He was really shaken up. I said, 'Tell me about it,' and he told me he'd had a dream that a teenager came into his classroom at his school and shot all the kids in front of him."

This weekend, 20 people from around the country will meet in a nondescript hotel room in Arlington, Va., and take a vote. A passing stranger who stumbled on this group wouldn't see much of anything, just a bunch of graying academic types sitting around a table.

But millions of people will be touched by that vote because the graying academic types are voting to approve the 5th edition of the Diagnostic and Statistical Manual — the bible of psychiatry.



In 1979, when Jim Stigler was still a graduate student at the University of Michigan, he went to Japan to research teaching methods and found himself sitting in the back row of a crowded fourth-grade math class.