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Sense About Lie Detectors
Lie detectors have been around for nearly 100 years. Despite debates over their accuracy and the ethics and legality of their use, the public and professionals remain intrigued by them. Lie detectors mainly consist of polygraphs, voice analysis or brain imaging. These technologies are different but three points are relevant to all:
- They are not accurate.
- They do not measure lies but rather something that could be a proxy for lies.
- They all rely on the deterrent effect (that is, fear of being caught lying).
Document type: Sense About
Published: 31 July 2012