Sense About Lie Detectors

Lie detectors mainly consist of polygraphs, voice analysis or brain imaging. These technologies are different but three points are relevant to all:

  1. They are not accurate.
  2. They do not measure lies but rather something that could be a proxy for lies.
  3. They all rely on the deterrent effect (that is, fear of being caught lying).

Find out more:

 http://archive.senseaboutscience.org/data/files/resources/101/SA-lie-detectors-2012.pdf  

 

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