THE ROLE OF “LYING” IN PSYCHOPHYSIOLOGICAL DETECTION

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Abstract
An experiment was designed to examine the role of lying behavior, per se, as the basis for experimental psychophysiological detection of deception. In addition to the standard card‐test procedure, a second procedure required the S to say “yes” to every question posed relating to the card chosen. This variation involved telling the “truth” in respect to the critical card in contrast to the usual procedure in which he is required to “lie.” With the use of the galvanic skin response (GSR)channel, significant detection rates were obtained for both procedures with nosignificant difference between them. Some theoretical issues related to the findings were explored.