Preview

Why Are Lie Detectors Important

Satisfactory Essays
Open Document
Open Document
491 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Why Are Lie Detectors Important
Lie detector is basicly the sidekick of the twenty first century.
Lie detectors tell the truth 80-90% of the time. it was not until 1914 and 1915 when the first lie detector came out and that was many years ago so they would have innovated it to make it more reliable.Lie detectors work by measuring breathing, pulse, and galvanic skin response.
Lie detector is basicly the sidekick of the twenty first century. Lie detectors tell the truth 80-90% of the time. It was not until 1914 and 1915 when the first lie detector came out. That was many years ago so they would have innovated it to make it more reliable. Lie detectors work by measuring breathing, pulse, and galvanic skin response.
Two pneumographs are around the chest. When the chest
…show more content…
This cuff has a tube from one end is connected to the cuff and the other is connected to the polygraph.There should be a sound when the arm. To make the pen moves there need to be pressure from the sound. When the pen moves this is what catches the results. Most people blood pressure will start to rise up when the lie. As most get nervous they sweat so that is another way for a lie detector to measure if they are lying or not. Galvanic skin response is also called electrodermal activity. Basically this is that they measure the sweat on your skin. Your fingertips are the best place to look for sweat. Most people start to sweat when under a stressful moment. There are two finger plates attached to the patient two fingers and this is called Galvanometers. The Galvanometers conducts electricity especially when the finger is wet with sweat. Breathing ,blood pressure,and galvanic skin response are way to tell whether someone is lying or not through a polygraph.To tell whether someone is lying they would breathe heavily and deeply. When people get nervous ther blood pressure gets high so this is another way to tell whether you are lying or not. A Lot of people get scared and start to sweat when under all the pressure.A polygraph would detect that and tells whether you're

You May Also Find These Documents Helpful

  • Good Essays

    David Zevin Analysis

    • 138 Words
    • 1 Page

    Do you Know brain imaging (fMRI) can be used to lie detection? As a Neuroscientist Moheb Costandi provides his commentary in Seed Magazine on that,” functional magnetic resonance imaging (fMRI) data as evidence that a key witness was telling the truth.”(1)…

    • 138 Words
    • 1 Page
    Good Essays
  • Good Essays

    Chapter 20 WOS review

    • 512 Words
    • 3 Pages

    Which of the following is a screen that uses electrodes that sense the conductive properties of skin?…

    • 512 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Cvsa

    • 1030 Words
    • 5 Pages

    Before we discuss what methods and techniques are available to be used in an effort to “beat” the polygraph, we need to discuss what the polygraph is and how it works. The polygraph is a deception detection device. The way it works is the subject is connected to the machine through a series of wires that are attached to the subject at various points of the body. It monitors physiological changes such as heart rate, breathing, blood pressure, and even sweating. The reason these bodily functions are monitored is because they are normally incontrollable. Before the beginning of the test, the examiner will ask some basic questions in order to establish a base line with which to compare the responses that are received during the test. Once the test starts, if any of the monitored items fluctuate then the examiner may determine that the subject is being deceptive (Alder, 2009).…

    • 1030 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    Another fact worth noting is that less effort required to lie leads to an increase in the tendency to do so. An example stated in the article was how it is easier to lie over e-mail than through a hand-written mail. Some studies showed some really fascinating facts about the way we tell lies. One of those the magnitude of most lies is little, although…

    • 246 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    1920's Inventions

    • 740 Words
    • 3 Pages

    changes in several involuntary physiological reactions. A series of different sensors are attached to the…

    • 740 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Forensics Case Studies

    • 772 Words
    • 4 Pages

    Polygraph tests are given by experts who can monitor a suspect’s truthfulness or deceit. The court ruled that expert testimony could be used to explain the results of the test. Now, courts allow expert testimony but not polygraph results.…

    • 772 Words
    • 4 Pages
    Good Essays
  • Good Essays

    A little known upcoming safeguard may be useful in preventing false confessions is called the Gudjonsson Suggestibility Scale (GSS). The GSS is a test that tries to measure how susceptible a person is to coercive interrogation (Gudjonsson, 1984a; 1992; 1997). Studies found the GSS has a sufficient reliability and test-retest stability (Gudjonsson, 1992). If anyone is interested in learning more about the GSS, you can read an article at…

    • 371 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Not everyone is aware about how much people lie. Pamela Meyer says “On a given day, studies show that you may be lied to anywhere from 10 to 200 times.” That’s a lot of lies in one day! Throughout Pamela’s talk she discusses; Lying is a cooperative act, the three truths about lying and how lying affects us. Pamela is an awesome presenter, that uses several presentations skills. I am going to give you a summary, analysis of her speaking skills and my own personal opinion on her talk “How To Spot A Liar”.…

    • 982 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Can we trust lie detectors to do all the work? Maybe, some are more accurate than others. Lie detectors aren’t completely accurate, but they're accurate enough to trust (Prusher 1). Can they betray themselves, though? “Lie detection has been around for centuries in various forms, based on the belief that liars and cheats betray themselves through their physiology” (Gaidos 38). Well, there's your answer, yes they can. You can betray yourself which…

    • 811 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Dan Ariely: Why We Lie?

    • 552 Words
    • 3 Pages

    First of all, what is a lie anyway? A lie, according to google, is an intentionally false statement. Which in a way is correct, but I think due to certain situations we don't want to lie but we have to. According to bestselling author and behavioral scientist Dan Ariely, lying is not rational. And to do anything “intentionally,” you think of logical reasons of why you should do it. Thus a lie is an impulsive statement that is false or exaggerated. Being that civilization has lied since the beginning of time, what are those impulses?…

    • 552 Words
    • 3 Pages
    Good Essays
  • Good Essays

    At some point in their lives, everyone will have to tell a lie. There are many reasons and motives to lie, but all require the same basic set of skills in order to do it effectively. The lie must be believable, consistent, and delivered correctly.…

    • 871 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Why Do People Lie

    • 792 Words
    • 4 Pages

    So now that it is clear that lies can be found anywhere, how can they be stopped? And if not stopped, at least detected? As seen on Today Health & Wellness, there are a series of cues that distinguish truth from…

    • 792 Words
    • 4 Pages
    Good Essays
  • Better Essays

    detects the way your body reacts, these scans read brain activity to determine whether or not…

    • 1284 Words
    • 6 Pages
    Better Essays
  • Better Essays

    Creature through a process interpreted as Galvanism; the use of electric current to stimulate nerves…

    • 2007 Words
    • 9 Pages
    Better Essays
  • Good Essays

    The Benefits Of Lie Essay

    • 971 Words
    • 4 Pages

    Lie can give you the biggest rewards, a new job, a beautiful girl only if they are effective. For example we tell lie to our girlfriend to keep the relationship in good shape and smoothly. Also, when our boss ask for a piece of work he assign to us 2 hours ago, we can say the true and say no; but instead we lie saying yes and do it the fastest we can. This lies can be successful for the person telling them but for the person receiving this lies they can always tell that we lying. People like they learn to lie they also learn to found lies, someone always have to lose when a lie is said. Is either the teller or the receiver; most of the time it’s the teller because the true it’s going to come out no matter how good can you lie or try to cover…

    • 971 Words
    • 4 Pages
    Good Essays