The polygraph,or lie detector,detects lies accurately by monitoring key indicators of automatic nervous system arousal.

Question

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The accuracy of the polygraph is controversial, as there is no scientific consensus on its effectiveness in detecting lies. The indicators of automatic nervous system arousal, such as changes in heart rate, blood pressure, and breathing, can also be influenced by other factors such as anxiety or fear, which may produce false positive results in some cases. Therefore, the use of polygraph tests as a reliable measure of truth-telling is widely criticized in scientific and legal circles.

The Polygraph,or Lie Detector,detects Lies Accurately by Monitoring Key Indicators