Liars' Brains Wired Differently

Via University of Southern California. 

Pathological liars have a surplus of white matter, the study found, and a deficit of gray matter. That means they have more tools to lie coupled with fewer moral restraints than normal people, Raine said.

“They’ve got the equipment to lie, and they don’t have the disinhibition that the rest of us have in telling the big whoppers,” he said.

“When people make moral decisions, they are relying on the prefrontal cortex. When people ask normal people to make moral decisions, we see activation in the front of the brain,” he explained. “If these liars have a 14 percent reduction in gray matter, that means that they are less likely to care about moral issues or are less likely to be able to process moral issues. Having more gray matter would keep a check on these activities.”

The researchers stopped short of asserting that these structural differences account for all lying.

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