A Neuroscientist Uncovers A Dark Secret

Barbara Bradley Hagerty in NPR:

The criminal brain has always held a fascination for James Fallon. For nearly 20 years, the neuroscientist at the University of California-Irvine has studied the brains of psychopaths. He studies the biological basis for behavior, and one of his specialties is to try to figure out how a killer’s brain differs from yours and mine.

About four years ago, Fallon made a startling discovery. It happened during a conversation with his then 88-year-old mother, Jenny, at a family barbecue.

“I said, ‘Jim, why don’t you find out about your father’s relatives?’ ” Jenny Fallon recalls. “I think there were some cuckoos back there.”

Fallon investigated.

“There’s a whole lineage of very violent people — killers,” he says.

One of his direct great-grandfathers, Thomas Cornell, was hanged in 1667 for murdering his mother. That line of Cornells produced seven other alleged murderers, including Lizzy Borden. “Cousin Lizzy,” as Fallon wryly calls her, was accused (and controversially acquitted) of killing her father and stepmother with an ax in Fall River, Mass., in 1882.

A little spooked by his ancestry, Fallon set out to see whether anyone in his family possesses the brain of a serial killer. Because he has studied the brains of dozens of psychopaths, he knew precisely what to look for. To demonstrate, he opened his laptop and called up an image of a brain on his computer screen.

“Here is a brain that’s not normal,” he says. There are patches of yellow and red. Then he points to another section of the brain, in the front part of the brain, just behind the eyes.

“Look at that — there’s almost nothing here,” Fallon says.

This is the orbital cortex, the area that Fallon and other scientists believe is involved with ethical behavior, moral decision-making and impulse control.

“People with low activity [in the orbital cortex] are either free-wheeling types or sociopaths,” he says.

Read on

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