A sample of pathological liars have more white matter than normal or antisocial controls, according to an MRI study published in the British Journal of Psychiatry.
More than 20% increase in prefrontal white matter, against both control groups, to be precise. The neurodevelopmental increase in white matter parallels developmental changes in the ability to lie (in children age 10 to 12 years). The researchers at the University of Southern California hypothesize that
“The relative reduction in prefrontal grey matter relative to white may also predispose to a general antisocial disinhibited tendency which, coupled with increased white matter, results in excessive lying.”
So take a closer look at your head images next time you volunteer for a research study.
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This entry was posted by Dave Higgins on Thursday, September 21st, 2006, at 12:01 pm, and was filed in All posts, Unusual MR.
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