Posted in reply to the post by hales:
Zeno posted:
"Wed, Feb 13, 2008 -- 8:00 PM
Radio Lab: Deception -- Why do some people lie more than others? Maybe it's not moral weakness so much as anatomical strength. The program talks with one researcher who has peered into the brains of pathological liars and found that certain parts of their brains are much bigger than those of truth-tellers. The show also discovers the joy of lying to oneself, and examines new efforts to teach airport security officers how to spot liars using very old equipment: their eyes."
I heard that program.. very interesting. It tracked an individual chronic liar who fooled many, many people into trusting her, liking her, cashing her forged checks, allowing her to live with them, etc., until she took off with credit info, social security numbers, etc. She eventually was given 2 years in a Louisiana prison, but was temporarilly released, because of overcrowding, due to hurricane Katrina, then disappeared.. what a saga!
The study referred to above, found, using brain scans, that the frontal cortex of a chronic liar has many more cells of white matter, or neural connections, which in effect increases the processing speed of the associative "story-telling" part of the brain. They had expected to find a part missing, but instead found an increased ability to do what I call "making sh## up". It's much more easy for them to fabricate a convincing string of randomly chosen ideas or story elements into a believable story. When someone asks me to make up a story, I pretty much "choke", feeling nervous about the pressure of expectation. I really wonder if there is a difference in brain structure to that of a really good non-pathological-liar, or more constructive and ethical story teller. (Like Aesop, for instance). I imagine a really good liar is like a good improvisational musician; maybe there is an addictive quality to it, like loving to improvise on jazz guitar, or something. I think a case might be made that what determines a "good lie" is to be able to be congruent and credible in all aspects of the story-telling, including body language, facial expression, tone of voice, syntax, etc., not just the details and "facts" of the story. Of course a good lie can also just be to consciously or unconsciously omit the truth.. ; )
Scott.