Amygdala activation during recognition of emotions in a foreign ethnic group is associated with duration of stay
Amygdala activation during recognition of emotions in a foreign ethnic group is associated with duration of stay
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DOI：
10.1080/17470910802571633
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发表时间：
2009-01-01
影响因子：
2
通讯作者：
Moser, Ewald
中科院分区：
文献类型：
--
作者：
Derntl, Birgit;Habel, Ute;Moser, Ewald
情绪识别表现的文化差异经常被报道，因此在外国文化中停留的时间似乎是一个关键因素。此外，文化因素影响面部和情绪处理的神经关联，从而也影响杏仁核的反应。本研究以24名亚洲男性和24名年龄相当的欧洲男性为研究对象，研究了接触外国文化及其对面部情绪识别大脑相关功能的影响。受试者完成一项明确的情绪识别任务，并使用3t核磁共振扫描仪成像。结果表明，文化对厌恶和愤怒的特定识别有显著影响，欧洲人的准确率更高，而功能数据表明，与欧洲人相比，亚洲人的杏仁核激活程度普遍较高。此外，逗留时间与杏仁核反应之间存在显著的负相关，在欧洲逗留时间较短的受试者中，杏仁核反应的激活程度更高。在亚洲人身上观察到的杏仁核过度激活可能反映了新颖性，但也可能与移民更大的努力和动机有关，因此它可能反映了外来者效应的一种神经关联。我们的结论是，接触外国文化和逗留时间会影响对情绪面部表情的行为和神经反应。
Cultural differences in emotion recognition performance have frequently been reported, whereby duration of stay in a foreign culture seems to be a crucial factor. Furthermore, cultural aspects influence the neural correlates of face and emotion processing thereby also affecting the response of the amygdala. Here, the exposure to a foreign culture and its influence on the cerebral correlates of facial emotion recognition were examined in 24 Asian and 24 age-matched European males. Subjects performed an explicit emotion recognition task and were imaged with a 3 T MR-scanner. Results demonstrate a significant cultural influence on the specific recognition of disgust and anger, with higher accuracy among the Europeans, while the functional data indicate generally elevated amygdala activation in Asians compared to Europeans. Moreover, a significant inverse correlation between duration of stay and amygdala response emerged, with stronger activation in those subjects with shorter duration of stay in Europe. The observed amygdala hyperactivation in Asians may reflect novelty aspects but might also be associated with greater effort and motivation in immigrants, thus it possibly reflects one neural correlate of the oalien-effecto. We conclude that exposure to a foreign culture and duration of stay affect the behavioral and neural response to facial expressions of emotions.