1 in 5 adults<\/a> suffers from white coat hypertension, which is characterized by an increase in blood pressure when being checked in a professional setting.<\/p>\n\n\n\nDue to this, someone with white coat hypertension may get a false positive or an inconclusive result.<\/p>\n\n\n\n
A less anxiety-inducing alternative to a conventional polygraph test is voice stress analysis (VSA). Just like what the name suggests, the procedure monitors stress-induced changes in voice patterns.<\/p>\n\n\n\n
When a person is put under stress, the fight or flight response is activated. This causes all kinds of physiologic changes, such as those that are recorded during a lie detector test. The muscles also become tense. Since the vocal cords are muscles, the voice changes when the individual is stressed or uncomfortable, such as when lying.<\/p>\n\n\n\n
It’s because of this why VSA works. And it’s simple, too \u2014 the examiner asks a series of questions, and the examinee speaks his or her answer each time into a microphone plugged into a computer.<\/p>\n\n\n\n
There are many perks that come with VSA. One of them is that there are no sensors attached to the subject’s body, which makes it less intimidating and more hygienic. Unlike a polygraph examination with various countermeasures that can contaminate the result, VSA only has one known countermeasure: the examinee not speaking.<\/p>\n\n\n\n
However, according to experts, VSA has a 50\/50 accuracy only, similar to flipping a coin.<\/p>\n\n\n\n
3. Eye-Scanning Lie Detector<\/h2>\n\n\n\n It’s been claimed time and again that the eyes are the windows to the soul \u2014 looking into the peepers of a person, purportedly, can give you an idea of his or her hidden thoughts and emotions.<\/p>\n\n\n\n
Well, there’s a modern-day technology that can save you from doing the guesswork when determining deception by means of the eyes of someone whose truthfulness you are doubting. It’s referred to as the eye-scanning lie detector, which was created in 2002 by a company based in Utah.<\/p>\n\n\n\n <\/figure>\n\n\n\nEarlier while talking about VSA, I mentioned that stress can affect the muscles such as the vocal cords.<\/p>\n\n\n\n
The same principle is taken advantage of by an eye-scanning lie detector in separating truth-tellers from deceptive people. The iris, which is the colored part of your eyes, is a muscle. When your fight or flight response is activated, such as when you are lying, it becomes tense. This causes the pupil of your eye to grow bigger.<\/p>\n\n\n\n
Generally speaking, greater pupil dilatation is associated with lying \u2014 all the on-the-spot attempts at planning and deploying believable lies can be stressful to the body.<\/p>\n\n\n\n
Similar to VSA, an eye-scanning lie detector does not require the examinee to be hooked up to a machine with the help of all sorts of sensors. The subject of the test simply has to sit in front of a computer and place his or her chin on the chin rest to stabilize the head and to keep the eyes within the level of the camera.<\/p>\n\n\n\n
The examiner then asks the person a series of questions answerable with a true or false. How much the pupil of his or her eyes dilates determines whether or not there’s deception.<\/p>\n\n\n\n
According to studies, an eye-scanning lie detector has an accuracy rate of 88%.<\/p>\n\n\n\n
Just Before You Undergo Any Truth-Telling Examination<\/h2>\n\n\n\n When it comes to investigating whether a person is being truthful or deceptive, there are a few other procedures available besides strapping him or her to a lie detector machine.<\/p>\n\n\n\n
A more accurate alternative is fMRI, which uses the same basic principles as an MRI.<\/p>\n\n\n\n
While some studies suggest that it has an impressive accuracy rate of 100% as opposed to a polygraph’s 90% accuracy rate (or 70% if critics are asked), certain things about the utilization of an fMRI are keeping it from completely replacing a lie detector test in real life as well as in forensic crime drama TV shows and movies.<\/p>\n\n\n\n
Related Questions<\/h2>\n\n\n\n What keeps a polygraph test from being 100% accurate?<\/strong> <\/p>\n\n\n\nDifferent people have different patterns of physiological reactions to stress, which is why it’s not all the time that a polygraph machine can detect deception precisely. Also keeping a lie detector test from being fully accurate is that the result can be influenced by both examinees and examiners.<\/p>\n\n\n\n
What can disqualify you from taking a polygraph test?<\/strong> <\/p>\n\n\n\nJust about anything that can alter physiological processes and affect a polygraph machine’s readings can disqualify a person from undergoing a lie detector test. Some of them include lack of sleep and the intake of alcohol and certain drugs. Some medical conditions are disqualifying factors, too.<\/p>\n","protected":false},"excerpt":{"rendered":"
Trust me, I’m not lying when I say that a lie detector test is not 100% accurate. Yes, a polygraph may say that a truthful examinee is lying and a deceitful examinee is being truthful….<\/p>\n","protected":false},"author":2,"featured_media":2619,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[7],"tags":[],"_links":{"self":[{"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/posts\/2596"}],"collection":[{"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/comments?post=2596"}],"version-history":[{"count":4,"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/posts\/2596\/revisions"}],"predecessor-version":[{"id":2794,"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/posts\/2596\/revisions\/2794"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/media\/2619"}],"wp:attachment":[{"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/media?parent=2596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/categories?post=2596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/truthorlie.com\/wp-json\/wp\/v2\/tags?post=2596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}