The majority of these lies are likely to be trivial in nature, serving a communicative function –, however, others can have more drastic consequences, such as those told by criminal witnesses and suspects –. For example, 40% of adults have reported telling a lie at least once per day. People lie surprisingly often, a task which requires a number of complex processes. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist. This PhD was funded by the European Aeronautic Defence and Space Foundation Wales (grant number RCPS400). This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.įunding: This work was conducted as part of a PhD study undertaken by the first author. Received: FebruAccepted: MaPublished: April 3, 2013Ĭopyright: © 2013 Williams et al. Overall, results demonstrate several distinct mechanisms that contribute to additional processing requirements when individuals tell a lie.Ĭitation: Williams EJ, Bott LA, Patrick J, Lewis MB (2013) Telling Lies: The Irrepressible Truth? PLoS ONE 8(4): Experiment 5 examined response choice mechanisms through the manipulation of lie plausibility. There was a greater lying latency effect when questions involved more than one possible lie response. In Experiments 3 and 4, we compared response times when participants had only one possible lie option to a choice of two or three possible options. In both experiments we found that there was a greater difference between lying and telling the truth when participants were directed to lie compared to when they chose to lie. A colored square was presented and participants had to name either the true color of the square or lie about it by claiming it was a different color. In Experiments 1 and 2, participants were directed or chose whether to lie or tell the truth. We investigated two processes suggested to increase response times, namely the decision to lie and the construction of a lie response. Telling a lie takes longer than telling the truth but precisely why remains uncertain.
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