Psychology Department, Goldsmiths, University of London , London, UK.
School of Psychological Sciences, The University of Melbourne , Australia.
Soc Neurosci. 2020 Aug;15(4):420-434. doi: 10.1080/17470919.2020.1754287. Epub 2020 May 4.
To reduce the escalation of intergroup conflict, it is important that we understand the processes related to the detection of group-based threat and reconciliation. In the present study, we investigated the neural mechanisms of such processes using functional Magnetic Resonance Imaging (fMRI). Functional neuroimaging techniques may shed light on quick, automatic responses to stimuli that happen outside of conscious awareness and are thus increasingly difficult to quantify relying only on participants' self-reported experiences. They may further provide invaluable insight into physiological processes occurring in situations of sensitive nature, whereby participants-deliberately or not-may withhold their honest responses due to social desirability. Non-Muslim Western Caucasian participants watched short video clips of stereotypical Middle-Eastern Muslim males threatening their ingroup, offering reconciliation to the ingroup, or making a neutral statement. Threatening statements led to increased activation in the amygdala, insula, supramarginal gyrus, and temporal lobe. Reconciliation efforts led to increased activation in the prefrontal cortex, anterior cingulate gyrus, and caudate. The results suggest that threat detection is a relatively automatic process while evaluating and responding to reconciliation offers requires more cognitive efforts. The implications of these findings and future research directions are discussed.
为了减少群体间冲突的升级,了解与群体威胁检测和和解相关的过程非常重要。在本研究中,我们使用功能磁共振成像(fMRI)研究了这些过程的神经机制。功能神经影像学技术可以揭示对外界刺激的快速、自动反应,这些反应是无意识的,因此仅依靠参与者的自我报告经验很难量化。它们还可以为敏感情况下发生的生理过程提供宝贵的见解,在这种情况下,由于社会期望,参与者可能会故意或无意地隐瞒自己的真实反应。非穆斯林的西方白种人参与者观看了刻板的中东穆斯林男性威胁他们所在群体、向所在群体和解或发表中立声明的短视频片段。威胁性言论会导致杏仁核、脑岛、缘上回和颞叶的活动增加。和解努力会导致前额叶皮层、前扣带皮层和尾状核的活动增加。研究结果表明,威胁检测是一个相对自动的过程,而评估和解并做出回应则需要更多的认知努力。讨论了这些发现的意义和未来的研究方向。