Engineers at Northwestern University have created a wireless polygraph to detect stress.

The polygraph, known more commonly as the “lie detector,” has a long and controversial history as a forensic tool, but it has also been used in a variety of other contexts, including employment ...

An examiner keeps an eye on how various measures change in response to particular topics or questions. Credit: DENker/Wikimedia Commons Attorneys for Christine Blasey Ford, the woman who's accused ...

Northwestern University engineers have developed a small, wireless polygraph system you can wear. Unlike polygraphs used in ...