Lie detection

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 can be used, the legal, social, and ethical issues in these studies, and the policy recommendations, all of which will be looked at in this critique. The journal Nature Reviews peer reviewed journal that is greatly respected and the article…

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…

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…

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;…

A polygraph, or a lie detector, is a device used to detect duplicity by replicating a subjects inner reactions on a scroll of paper. A subjects reactions to a particular yes or no question would then be recorded on to one of the multiple graphs the polygraph produced. Many people feel as if a polygraph is the key to figuring out whether a person is either innocent or guilty when investigating crimes such as murders but, what they may not know is that a polygraph cannot fully be trusted. In the…

Polygraph Testing is also known as the lie detector test. Some people believe that it can actually detect lies and others don’t. Polygraph test measures your heart rate, blood pressure, and breathing. The polygraph examiners assume that when a sudden increase in one of those sections that you are lying. If you stay calm then they assume you're telling the truth. Many things can change a sudden increase such as emotions or medical conditions. I feel that it is unethical to assume that someone…

One reason people lie is to make themselves look suitable to others, or they want other people to believe they are worthy enough to have a conversation with. In the article by Ein-Dor et al, It Takes an Insecure Liar to Catch a Liar: The Link between Attachment Insecurity, Deception, and Detection of Deception, he states that over 90% of all people lie about their true feelings, income, accomplishments, sex life, and age” (1991). One way people lie to gain attention is on the internet. People…