Lying to beat the Lie Detector

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Can you beat a lie detector test?

There are plenty of people, websites, and shows that "prove" it's possible to lie to the lie detector without getting caught. However, how professional are these polygraphs that they're using? Here's a video taking a look at this,

Here the test accurately and easily told when he was lying even with a simple test. If this guy can't even lie about a simple number he wrote down it is going to be pretty tough to lie when there is more at stake in a police case. It also mentions in our textbook about the Pinocchio response and it seemed to come into play in this video. The guy here paused and looked a little stressed when it was time to lie, this can also be seen in other videos. Not only here, but also in everyday life there are cues that help any normal person decide when someone is lying.

So, with all of this it leads me to wonder how can the test really be beaten? How can elevated heart rates, blood pressure, respiration and other natural brain and bodily responses be controlled when your under pressure and your body knows the truth?

The textbook also mentions that the polygraphs turn up a lot of false positives. I think this is the reason people think that the test is inaccurate and beatable. However, if someone is lying I think there is a very, very high chance of it detecting it and it's difficult to beat it. Until I actually see someone beat an official polygraph and the test administrator i won't believe it. It is hard to control emotions and sensations that occur because of body reactions and the polygraphs are good enough at picking that up.

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This page contains a single entry by harms123 published on November 6, 2011 11:11 PM.

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