Do Lie Detectors Lie? 2 New Ways Of Fib Detecting.
May 1, 2008 by Scott Wharton
Filed under Men's Health
Do lie detectors tell the truth? You see it all the time on the day time talk shows like Maury, Montell and Dr. Phil. Someone swears they are telling the truth but when they take a polygraph test it seems they are giving “deceptive answers”. Polygraphs can’t tell if you are really telling a lie but they detect things such as change in heart rate. This supposedly tell the person conducting the test whether the answer you are giving is true or deceptive by the rate of your heartbeat. if it is calm and steady your telling the truth but it it’s inconsistent and sporadically speeds up when answering a question it say your lying.
MSN.com health reports on two new ways that they have found to possibly detect whether a person is telling the truth or a big fat lie! Again, probably not submittable in court and just detecting the bodies response to certain questions. Here they are:
“Brain Activity to Detect Lies
The first report describes how a specific part of the brain (the anterior cingulate gyrus) becomes active when healthy volunteers were asked to lie about a card they were holding. It used a scanning technique that tracks changes in where blood flows in the brain; blood flow, in turn, is an indicator of brain activity. This report adds to other recent studies linking specific areas of brain activity and such activities as gambling or drug ingestion. These studies are likely to improve our understanding of brain function and how it relates to human behavior.
Facial Warmth to Detect Lies
The other report described a technique called “thermography” — that is, it measured heat. It turns out that humans tend to have increased blood flow around the eyes and other parts of the face when lying. The researchers found a good correlation between increased heat among volunteers who were asked to lie compared with those asked to tell the truth. The results were available more quickly and did not require as highly trained technicians for proper testing and interpretation, as with standard polygraph testing. “
Read the entire article here: The Lie Of Lie Detectors
