William Marston, the creator of Wonder Woman, proposed that vital signs could reveal emotions, inspiring the invention of the polygraph machine in the early 20th century.
For over a century, lie detection technology has evolved from polygraphs to Micro Expression Training, and now considers AI voice analysis, yet the effectiveness remains under scrutiny.
Researchers warn against relying on a single cue for detecting lies, as this approach can introduce bias and inaccuracies in judgments regarding guilt and innocence.
The only certain method of lie detection highlighted in the research is fact-checking, emphasizing the limitations of traditional deceptive cues and techniques.
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