Would a poker player do better on a polygraph test than the average person

[DrDeth]

@Toastmaker

A poker player would have no real advantage. The polygraph measures autonomic responses like respiration and galvanic skin response (skin moisture variations). The entire range of recorded indications is also largely dependent on human analysis and the opinion of the polygraph operator as to a declaration of truthfulness or deceit. This is primarily why such results are not admissible in criminal courts as evidence.

Pretty much the Operator decides your guilt or innocence without relying on the polygraph at all. It is often used simply to point at any blip and say “The lie detector says you are lying, what’s the real truth?”