Add Yahoo as a preferred source to see more of our stories on Google. American inventor John Larson, right, demonstrates the operation of a polygraph at Northwestern University in Evanston, Illinois, ...

Further spurred by another negative polygraph experience, the resulting deep dive on polygraphs and examination methods ...

In Season 8, Episode 10 of "The Simpsons" — an episode parodying the popular 1990s sci-fi thriller "The X-Files" — Homer Simpson is being questioned by two federal agents at a police station. "This is ...

In 1921, John Augustus Larson, a medical student and police officer in Berkeley, California invented a machine to help detectives determine if someone was telling the truth - or lying. He called it - ...

A new attempt to reshape Madagascar’s leadership is taking an unusual turn, with the country’s new authorities leaning on technology to screen potential ministers before they even get a foot in the ...

The polygraph is not a lie detector but rather an instrument that measures a person’s physiological changes to questions posed by the examiner. An elevated physiological response to a particular ...

A version of this story appeared in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here. When President Ronald Reagan’s White House threatened thousands of government ...