Learning to detect deception.

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Abstract
Administered a lie detection test—a videotape presenting the faces and voices of senders delivering truthful and deceptive messages—to 191 undergraduates. For each message, Ss were asked to judge whether the sender was lying or telling the truth. Information identifying messages as truthful or deceptive was given to some Ss (learning conditions) but not to others (control). The information was provided either after Ss recorded their judgment on a particular item (post-message) or before the item itself was presented (premessage). The number of items for which information was provided was also varied. Accuracy of lie detection was calculated for all experimental conditions (when premessage information was given). In general, the more information (either pre or post) about deceivers' messages, the more accurate the detection of lies enacted by the same deceivers. However, the increase in accuracy did not generalize to accuracy of detecting lies enacted by other deceivers. (13 ref) (PsycINFO Database Record (c) 2016 APA, all rights reserved)

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