A psychology professor<\/a> at the University of Portsmouth says that people can detect truthfulness 44% of the time and detect deception 67% of the time. Soon, we may be able to leave the task altogether to polygraphy.<\/p>\n\n\n\n Read on to know what it’s like for police officers, investigators and employers to conduct lie detectors for investigations or pre-employment screenings in the future.<\/p>\n\n\n\n Most people know what an MRI is. Short for magnetic resonance imaging, it’s a diagnostic procedure that makes it possible for medical professionals to obtain structural images of the body’s tissues and organs.<\/p>\n\n\n\n A form of an MRI exists that takes a look at the functions of an internal structure rather than the shape or form. And it’s what’s referred to as an fMRI \u2014 the “f” stands for “functional”. It’s commonly used to detect brain activity, which makes the procedure effective in detecting deception.<\/p>\n\n\n\n What’s really amazing about an fMRI as a truth-telling method is that it has a 100% accuracy<\/a> rate. So, in other words, because it can correctly identify deceitful people at all times, it’s completely infallible.<\/p>\n\n\n\n The way an fMRI works in determining whether or not an individual is truthful is this: it monitors areas of the brain involved in deception to check for an increase in blood flow, which signifies lying.<\/p>\n\n\n\n Alas, as of this writing, the use of fMRI for verifying truthfulness has yet to achieve general acceptance in the scientific community. Another thing that’s keeping fMRI from being favored by police officers and criminal investigators over a conventional polygraph is the fact that the key component of the examination is expensive and cumbersome.<\/p>\n\n\n\n Some of the most compact MRI machines these days weigh around 15,000 pounds \u2014 the biggest models of the bunch can be anywhere from 44,000 pounds to as heavy as 83,000! Other than the weight, the size of the instrument is also a detriment. If fMRI were to replace a computerized polygraph, an entire room would have to be dedicated to it.<\/p>\n\n\n\n And did I already mention that some of the cheapest MRI machines cost around $100,000?<\/p>\n\n\n\n When creating a report, a polygraph examiner does not consider only the chart generated \u2014 he or she also takes into account the non-verbal communication cues exhibited by the subject during the lie detector test.<\/p>\n\n\n\n And some of those that can prove to be valuable in making a diagnosis are facial expressions.<\/p>\n\n\n\n In the world of polygraphy, there are the so-called micro-expressions. Simply put, they are involuntary facial expressions that humans make when experiencing an emotion, such as something that can be easily associated with lying like guilt, fear or even delight. The word “micro” is in the name because micro-expressions last only for a short moment.<\/p>\n\n\n\n While micro-expressions typically last only for a fraction of a second, they can also be as long as 4 seconds at times, although not long enough for an examiner who isn’t particularly observant and detail-oriented to catch.<\/p>\n\n\n\n Professors at Tel Aviv University in Israel have developed a lie detection method that banks on micro-expressions to tell apart honest people and deceitful ones. The software and algorithm used for the said examination, which is still in its developmental stages, is said to be able to detect lies up to 73% of the time.<\/p>\n\n\n\n A polygraph test entails attaching sensors to various parts of the examinee’s body.<\/p>\n\n\n\n Meanwhile, the brainchild of Tel Aviv University’s professors involves sticking small electrodes on various landmarks on the face of the subject. A scanner is then used to make sure that the system catches every single micro-expression that the examinee’s face involuntarily makes when lying.<\/p>\n\n\n\n There are many things that can influence the result of a lie detector test. And if you think that the only thing that can contaminate the examination is the subject, specifically through the use of countermeasures, think again. In some instances, an error can be blamed on the one who is conducting the test \u2014 the examiner.<\/p>\n\n\n\n Improper training and a lack of experience can keep the examiner from administering a polygraph test well.<\/p>\n\n\n\n Just about anything from failure to orient the subject during the pre-test phase appropriately, badly formulating and wording the yes or no questions to poorly evaluating the chart can affect the outcome.<\/p>\n\n\n\n![\"brain](\"https:\/\/truthorlie.com\/wp-content\/uploads\/brain-scan-1197120001-1024x768.jpg\")
<\/figure>\n\n\n\nBrain Scans<\/h2>\n\n\n\n
Facial Muscle Movements<\/h2>\n\n\n\n
![\"robot](\"https:\/\/truthorlie.com\/wp-content\/uploads\/robot-examiner-1196512468-1024x768.jpg\")
<\/figure>\n\n\n\nRobot Examiners<\/h2>\n\n\n\n