Lie detection

Lies are being told all around us. Of 555 character traits evaluated, lying was categorized as the worst, yet research also shows that people lie daily and don’t feel significant guilt for their deception (DePaulo, Kashy, Kirkendol, Wyer & Epstein, 1996). With the great prevalence of dishonesty in most social interactions, much research has been focused on aspects of lying and effective methods of lie-detection. Studies have deduced the three main aspects of lying to be verbal, nonverbal, and physiological, around which the relevant lie-detection methods revolve. Physiologically-based lie detection tools include measurements of an individual’s skin response, heart rate, blood pressure, and/or neural activities. Such methods are intrusive and…

MRI-based lie detection: Scientific and societal challenges” is an article written by Martha J. Farah, J. Benjamin Hutchinson, Elizabeth A. Phelps and Anthony D. Wagner in the journal Nature Reviews Neuroscience. This article is about how Functional MRI (fMRI) are started to be studied for use in lie detection in at least trials in the United States. The authors of this article address five main themes: the science of fMRI-based lie detection, how these studies apply to the real world, how they…

technology that could potentially grow into a huge part of our legal system and even now it is moving forward at a rapid pace and continuing to develop. We have made various discoveries and we have created ways to not only make our lives much easier but also to create reliable detections that could serve us in the courtroom. However, many argue that these advance technologies may not be as reliable as we would hope, which raises a big concern…

One can lie to themselves, but one cannot lie to this machine. Deception detection has been used all over the world for centuries. The ability to detect deception in others has always been a critical tool in maintaining a civilized society. The polygraph was invented in 1921 and although technology has changed over the years, it remains one of the most reliable means of detecting deception. It is also one of the few methods of lie detection acceptable for use in criminal proceedings. This…

Since its invention in 1921, lie detector testing and its accuracy have always been a controversial issue in both the scientific and public domains. In fact, despite the popularity that it has gained in the cultural realm over the years, the veracity of polygraph tests continue to plague our endless search for truth. Xenophanes once said, “Pure truth no man has seen, nor shall ever know.” While there may be some truth in this statement, man’s search for truth did not waver. Since the beginning…

uncontrollable and shows an observer signs of every emotion. It shows signs of deceit as well. Usually these are undetectable, but with some training they can be detected and used in investigations. Therefore, facial micro-expressions should be admissible in federal investigations. We need a replacement for polygraphs, and micro-expressions are a fine candidate. The previously used lie detector, the polygraph, is unreliable. This is because “physiological responses measured by the polygraph are…

For instance, many paradigms in lie detection studies include memory confounds, which make it difficult to isolate the brain processes specific to deception. Farah et al. (2014, p. 125) cite a study by Gamer et al. as an example of this, in that Gamer et al. found showing participants pictures they had previously memorized resulted in activation in the same brain areas that are often implicated in studies of deception. Satel and Lilienfeld (2013, p. 79) cite an additional memory confound in that…

when someone is lying? Lie-detecting technology has existed since 1902 and rose to prominence in 1921 with the invention of the polygraph…

tell the truth. However, not everyone chooses to do so. Luckily, technology has advanced enough for us to change that. The polygraph is one way to sight a lie. In 1921, medical student John Augustus Larson successfully created the polygraph, more commonly known as the lie detector (KidZone Science). The polygraph was previously invented by James McKenzie, but the device was deemed inadequate (KidZone Science). With the help of Harvard psychologist William Moulton Marston, Larson discovered…

The basic definition of a lie is to state something on purpose to a group of people, or even a person, that is false. In order for a person to lie about something that person will need a reason, either to cover something up, to explain something in a nicer way in order not to make the specific person being lied too to feel bad, to hid information that is thought of un important or un necessary, or even to just get out of a situation. There are multiple types of lies, to many to state actually;…