Eric Bland
A new way to remotely monitor blood pressure, pulse rate and sweating could be used to screen for health signs as well as to administer lie detection tests on people without their knowledge or consent.
It's obvious when Pinocchio's lying. What about more subtle clues? Scientists say they have the basis of a remote lie detector test that monitors someone's sweat, pulse and blood pressure without them knowing. But is it ethical?
While researchers stress their work remains only proof-of-concept, a commercial version using sub-terahertz waves could theoretically help remotely monitor medical patients, evaluate athletic performance, diagnose disease and detect lies.
The key is in the surprising shape of human sweat ducts.
The device could also be used as a remote lie detector, without their knowledge or consent.
Trained professionals can evade polygraphs, but if a person doesn't know they are being constantly tested the new method could be more effective.
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