Christ Shawn E, Van Essen David C, Watson Jason M, Brubaker Lindsay E, McDermott Kathleen B
Department of Psychological Sciences, University of Missouri, Columbia, MO 65203, USA.
Cereb Cortex. 2009 Jul;19(7):1557-66. doi: 10.1093/cercor/bhn189. Epub 2008 Nov 2.
Previous neuroimaging studies have implicated the prefrontal cortex (PFC) and nearby brain regions in deception. This is consistent with the hypothesis that lying involves the executive control system. To date, the nature of the contribution of different aspects of executive control to deception, however, remains unclear. In the present study, we utilized an activation likelihood estimate (ALE) method of meta-analysis to quantitatively identify brain regions that are consistently more active for deceptive responses relative to truthful responses across past studies. We then contrasted the results with additional ALE maps generated for 3 different aspects of executive control: working memory, inhibitory control, and task switching. Deception-related regions in dorsolateral PFC and posterior parietal cortex were selectively associated with working memory. Additional deception regions in ventrolateral PFC, anterior insula, and anterior cingulate cortex were associated with multiple aspects of executive control. In contrast, deception-related regions in bilateral inferior parietal lobule were not associated with any of the 3 executive control constructs. Our findings support the notion that executive control processes, particularly working memory, and their associated neural substrates play an integral role in deception. This work provides a foundation for future research on the neurocognitive basis of deception.
以往的神经影像学研究表明,前额叶皮层(PFC)及附近脑区与欺骗行为有关。这与说谎涉及执行控制系统的假设相一致。然而,迄今为止,执行控制的不同方面对欺骗行为的贡献性质仍不清楚。在本研究中,我们采用激活可能性估计(ALE)元分析方法,定量识别在过去的研究中相对于真实反应,欺骗性反应始终更活跃的脑区。然后,我们将结果与为执行控制的3个不同方面生成的额外ALE图谱进行对比:工作记忆、抑制控制和任务切换。背外侧前额叶皮层和顶叶后皮质中与欺骗相关的区域与工作记忆选择性相关。腹外侧前额叶皮层、前岛叶和前扣带回皮质中的其他欺骗相关区域与执行控制的多个方面相关。相比之下,双侧顶叶下小叶中与欺骗相关的区域与这3种执行控制结构中的任何一种都不相关。我们的研究结果支持这样一种观点,即执行控制过程,尤其是工作记忆,及其相关的神经基质在欺骗行为中起着不可或缺的作用。这项工作为未来关于欺骗的神经认知基础的研究奠定了基础。