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... according to researchers at the University of California, who conducted an experiment:
http://tinyurl.com/isoe201509
For those interested in a more arcane, technical discussion of the cognitive science, here is the abstract, or summary, of the research paper:
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The Inhibitory-Spillover-Effect (ISE) on a deception task was investigated. The ISE occurs when performance in one self-control task facilitates performance in another (simultaneously conducted) self-control task. Deceiving requires increased access to inhibitory control. We hypothesized that inducing liars to control urination urgency (physical inhibition) would facilitate control during deceptive interviews (cognitive inhibition). Participants drank small (low-control) or large (high-control) amounts of water. Next, they lied or told the truth to an interviewer. Third-party observers assessed the presence of behavioral cues and made true/lie judgments. In the high-control, but not the low-control condition, liars displayed significantly fewer behavioral cues to deception, more behavioral cues signaling truth, and provided longer and more complex accounts than truth-tellers. Accuracy detecting liars in the high-control condition was significantly impaired; observers revealed bias toward perceiving liars as truth-tellers. The ISE can operate in complex behaviors. Acts of deception can be facilitated by covert manipulations of self-control.
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The paper is slated for publication in an academic journal called Consciousness and Cognition. The complete text of the paper is only available with a subscription, or as a one-time purchase. Students may have access through university libraries. Here's the link:
http://www.sciencedirect.com/science...53810015300301
LM
http://tinyurl.com/isoe201509
For those interested in a more arcane, technical discussion of the cognitive science, here is the abstract, or summary, of the research paper:
- - - - -
The Inhibitory-Spillover-Effect (ISE) on a deception task was investigated. The ISE occurs when performance in one self-control task facilitates performance in another (simultaneously conducted) self-control task. Deceiving requires increased access to inhibitory control. We hypothesized that inducing liars to control urination urgency (physical inhibition) would facilitate control during deceptive interviews (cognitive inhibition). Participants drank small (low-control) or large (high-control) amounts of water. Next, they lied or told the truth to an interviewer. Third-party observers assessed the presence of behavioral cues and made true/lie judgments. In the high-control, but not the low-control condition, liars displayed significantly fewer behavioral cues to deception, more behavioral cues signaling truth, and provided longer and more complex accounts than truth-tellers. Accuracy detecting liars in the high-control condition was significantly impaired; observers revealed bias toward perceiving liars as truth-tellers. The ISE can operate in complex behaviors. Acts of deception can be facilitated by covert manipulations of self-control.
- - - - -
The paper is slated for publication in an academic journal called Consciousness and Cognition. The complete text of the paper is only available with a subscription, or as a one-time purchase. Students may have access through university libraries. Here's the link:
http://www.sciencedirect.com/science...53810015300301
LM