I don’t have the firmest grasp on the way a polygraph functions, but I’ve just had this thought a lot.
Could a polygraph help people uncover repressed memories? For example if a person suspects they were being harmed as a child, but can’t remember details, could a polygraph help them get more answers? Like by asking specific questions maybe related to what a person suspects happened and detecting how they respond.
Or, is a polygraph only useful to detect truth/a lie about things someone is certain about and remembers fully?
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Polygraphs aren’t admissable as evidence because they don’t work. There’s no specific physical response that indicates lying.
The concept of repressed memories is controversial at best with most modern psychologists not believing that they even exist. It’s from Freudian psychoanalysis which is taken about as seriously as the four bodily humors and phlogiston these days.
This is kind of like speculating on using love potion to drive off a succubus. Neither of those are things.
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