A Cognitive Approach to Lie Detection

Abstract

This chapter introduces a new cognitive approach to non-verbal and verbal lie detection. The aim of the approach is to enhance through specific interventions the difference in cognitive load that liars and truth tellers experience. If successful, those interventions should result in liars displaying more diagnostic cues to deception and should facilitate lie detection. The cognitive lie detection approach has two elements, imposing cognitive load and asking unanticipated questions. This chapter presents the underlying rationale of these two elements together with brief descriptions of numerous studies carried out in this area to date. This section shows that a cognitive lie detection approach (i) results in more cues to deceit and (ii) facilitates lie detection.

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