Faculty of Health Sciences, University of Sydney Sydney, NSW, Australia.
Front Psychol. 2012 Oct 30;3:453. doi: 10.3389/fpsyg.2012.00453. eCollection 2012.
Lying is a universal activity and the detection of lying a universal concern. Presently, there is great interest in determining objective measures of deception. The examination of speech, in particular, holds promise in this regard; yet, most of what we know about the relationship between speech and lying is based on the assessment of English speaking participants. Few studies have examined indicators of deception in languages other than English. The world's languages differ in significant ways, and cross-linguistic studies of deceptive communications are a research imperative. Here we review some of these differences amongst the world's languages, and provide an overview of a number of recent studies demonstrating that cross-linguistic research is a worthwhile endeavor. In addition, we report the results of an empirical investigation of pitch, response latency, and speech rate as cues to deception in Italian speech. True and false opinions were elicited in an audio-taped interview. A within-subjects analysis revealed no significant difference between the average pitch of the two conditions; however, speech rate was significantly slower, while response latency was longer, during deception compared with truth-telling. We explore the implications of these findings and propose directions for future research, with the aim of expanding the cross-linguistic branch of research on markers of deception.
说谎是一种普遍的行为，而对说谎的检测也是普遍关注的问题。目前，人们对确定欺骗的客观测量方法非常感兴趣。在这方面，对言语的检查尤其有希望；然而，我们对言语和说谎之间的关系的了解大多是基于对说英语的参与者的评估。很少有研究检查过除英语以外的语言中的欺骗指标。世界上的语言在很多方面都有很大的不同，因此对欺骗性交流进行跨语言研究是一项研究的当务之急。在这里，我们回顾了世界上语言之间的一些差异，并概述了一些最近的研究，这些研究表明，跨语言研究是一项有价值的努力。此外，我们还报告了一项关于意大利语语音中的音高、反应时和语速作为欺骗线索的实证研究的结果。在录音采访中引出了真实和虚假的意见。一项被试内分析显示，两种条件下的平均音高没有显著差异；然而，与说实话相比，说谎时的语速明显较慢，而反应时较长。我们探讨了这些发现的意义，并提出了未来研究的方向，旨在扩大欺骗标记的跨语言研究分支。
