Raymond Nelson author of an enlightening paper on the Scientific Bases for polygraph testing.

Click on the below link to read.
https://apoa.memberclicks.net/index.php?option=com_content&view=article&id=56:scientific-basis-for-polygraph&catid=20:site-content&Itemid=156
https://apoa.memberclicks.net/index.php?option=com_content&view=article&id=56:scientific-basis-for-polygraph&catid=20:site-content&Itemid=156