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Lie Detector

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Lie Detector

Postby Prasanth » Tue Dec 06, 2011 5:52 pm

Lies are part of human life! People often tell lies to deceive others. many of us have heard about “lie detector “,some where seen in movies or read it in fiction stories. Does anything of this sort really exist? If yes, does it really detect lies? Yes it does. The first thing that comes to our mind is how an instrument with some electronic components can read out our mind. Though science and technology are growing at the speed of light, has it reached a stage where it can read mind? Not exactly! But it can approach to that stage by monitoring the physiological reaction by plotting graphs.


Polygraph, a multigraph of physiological reaction. Lie detector or polygraph as it is technically called is an instrument that monitors the physiological reaction. It can detect only deceptive behavior of human mapped to lies. The underlying factor of this concept is a person is subjected to stress while trying to decieve.Biomedical technology is used to bring out this deception. Lying is a sort of defense mechanism used by human to avoid trouble but when it is a serious crime like murder, spying on a country, it is necessary to bring out the truth. in such a case polygraph provide a helping hand to the law.


When someone decieves, sometimes we are able to guess by his/her reactions whether they are deceiving or not. But most of the times we are unable to predict this. This principle of guessing is more widely used with the growing technologies to monitor the physiological reactions. It monitors the involuntary change that occurs in the body when the person is under stress. Biomedical instruments are used to monitor those physiological reactions.
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Re: Lie Detector

Postby deeba khanam » Thu Jan 12, 2012 4:22 pm

i want a research paper...on lie detector
deeba khanam
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Re: Lie Detector

Postby chandana21 » Tue Jan 24, 2012 6:36 pm

may i get some more info on this topic...n also slides associated with this...
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Re: Lie Detector

Postby venugopal.R » Fri Feb 10, 2012 8:13 am

I am information science student
am interested in lie detector seminar....
what information should I include in my ppt...
could u plz send me details in brief
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Re: Lie Detector

Postby umeranaz » Fri Feb 21, 2014 3:23 am

sir i want ppt's of this topic sir plz mail me at :
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