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Detection of Deception: Cognitive Load

Cognitive load interview protocols are designed to make interviews more demanding for suspects. This increased demand has a greater effect on liars than on truth tellers because liars already find being interviewed more mentally taxing than do truth tellers. The result is that cognitive load interview protocols facilitate discrimination between liars and truth tellers.

Lying in an interview setting is often more cognitively demanding than truth telling. First, formulating the lie itself is cognitively taxing. Liars need to make up their stories while monitoring their fabrications so that they are plausible and adhere to everything the observer knows or might find out. In addition, liars must remember their earlier statements and know what they told to whom, so that they appear consistent when retelling their story. ...

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