Early inspiration for the polygraph machine came from the creator of Wonder Woman, William Marston. Marston thought there was a link between vital signs and emotions, and that a machine might show that. allanswart/Getty Images
allanswart/Getty Images
For over a century, people have been inventing technology to catch a liar in the act.
The polygraph was wildly popular in the mid-20th century, until science and federal law cracked down. Then, there was an era of Micro Expression Training. Now, there’s talk of using AI to analyze the human voice.
But