如果你曾经看过一部警匪片或破案片,你或许见过将某人与一台测谎仪相连接的场景,这种仪器用于测试某人是否说了真话。该仪器对与说谎相关联的身体机能进行跟踪并绘出其曲线图,诸如血压以及呼吸的变化。通过观察测试结果曲线图中的波峰信号,负责测试的人可以大致推测当某人被问及某个特定问题时是否在撒谎。不幸的是,说真话的人由于对测试感到紧张,身体 If you have ever seen a police film or a crime scene, you may have seen the scene of connecting someone to a polygraph. This instrument is used to test if someone has said the truth. The instrument tracks body functions associated with lying and graphs such as changes in blood pressure and respiration. By observing the peak signal in the test result graph, the person responsible for the test can roughly guess whether or not someone was lying when asked about a particular problem. Unfortunately, the person who tells the truth is nervous because of the test.