lie detector
People tell lies and deceive others for many reasons. Most often, lying is a defense mechanism used to avoid trouble with the law, bosses or authority figures. Sometimes, you can tell when someone's lying, but other times it may not be so easy. Lie detectors are instruments that monitor a person's physiological reactions. A polygraph instrument is basically a combination of medical devices that are used to monitor changes occurring in the body. A person is questioned about a certain event or incident, the examiner looks to see how the per
The examiner also has to be a neat feature and use the standard language with a steady tone of voice. If it is too dry, then it can cause a cough. A lie detector is not a device to detect lies rather it can detect whether deceptive behavior is being displayed. Fluctuations may indicate that person is being deceptive, but exam results are open to interpretation by the examiner. Lie detectors are used in many places and situations like FBI, police departments, employments with permission of future employees, and etc. son's heart rate, blood pressure, respiratory rate and electro-dermal activity (sweatiness) change in comparison to normal levels. This will destroy the purpose of test. The question shouldn't be too long or too short. There is an ethical issue involved with lie detectors. The room should be completely quiet, not too dry or not too humanity. A person who is being tested should be block from any kinds of disturbances except by the examiner. New technology is good only if we use it in a correct way with a respect of human rights and careful use. On the other hand, some people can be dishonored. But we can not completely rely on the results with the device because some people can manipulate their results with controlling their behaviors with practice and experience.
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