Lie Detector Research Paper
“Liar!” How do we know? Can you guess? We use a lie detector. Lie detector tells us if people are lying. Sometimes we can automatically tell and sometimes we can’t, that’s when we use the lie detector. Lie detectors have 95% accuracy and are mostly reliable, but they are the easy to cheat.
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 …show more content…
Well, let’s start with ancient China. “In ancient China suspect were given rice to chew, the idea being that liar’s would be too nervous to salivate so the rice would remain dry”(Gaidos 38). Interesting, I wondered how that work out for them. But how do we know now? “When someone’s lying, subtle changes in the vocal cord are said to occur as a result of the stress, producing a distorted sound wave”(Prusher 1). When people get stressed they sound different I guess. I’m not sure how that works, but it’s not my problem. But there is a guy who is working on making an improved lie detector. Truster’s new lie detector concentrates mostly on stress levels in people's voice by measuring its “cognitive messages” and low-frequency waves that are not audible and are 85% accurate (Prusher 1). So stress is a bad thing whenever you’ve been accused of something. Good to know, I guess if you're truthful and never stressed this test will be a breeze. “Using a complex algorithm and nine different parameters, the inventors say they are able to pinpoint whether the person's stress is caused by lying, excitement, exaggeration, or an emotional conflict”(Prusher 1). Lot’s of big words but basically Truster’s is an inventor who is making a lie detector that is determined by stress
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 …show more content…
Well, let’s start with ancient China. “In ancient China suspect were given rice to chew, the idea being that liar’s would be too nervous to salivate so the rice would remain dry”(Gaidos 38). Interesting, I wondered how that work out for them. But how do we know now? “When someone’s lying, subtle changes in the vocal cord are said to occur as a result of the stress, producing a distorted sound wave”(Prusher 1). When people get stressed they sound different I guess. I’m not sure how that works, but it’s not my problem. But there is a guy who is working on making an improved lie detector. Truster’s new lie detector concentrates mostly on stress levels in people's voice by measuring its “cognitive messages” and low-frequency waves that are not audible and are 85% accurate (Prusher 1). So stress is a bad thing whenever you’ve been accused of something. Good to know, I guess if you're truthful and never stressed this test will be a breeze. “Using a complex algorithm and nine different parameters, the inventors say they are able to pinpoint whether the person's stress is caused by lying, excitement, exaggeration, or an emotional conflict”(Prusher 1). Lot’s of big words but basically Truster’s is an inventor who is making a lie detector that is determined by stress