Culture but not gender modulates amygdala activation during explicit emotion recognition

BMC Neuroscience

Research Article

Ruben C Gur¹  Ilse Kryspin-Exner²  Christian Windischberger³  Simon Robinson³  Ewald Moser⁴  Ute Habel⁵  Birgit Derntl⁶ 

[1] Department of Psychiatry, University of Pennsylvania Medical School, and the Philadelphia Veterans Administration Medical Center, Philadelphia, USA;Institute for Clinical, Biological and Differential Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria;MR Centre of Excellence, Medical University of Vienna, Vienna, Austria;Centre for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria;MR Centre of Excellence, Medical University of Vienna, Vienna, Austria;Centre for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria;Department of Psychiatry, University of Pennsylvania Medical School, and the Philadelphia Veterans Administration Medical Center, Philadelphia, USA;MR Centre of Excellence, Medical University of Vienna, Vienna, Austria;Department of Psychiatry, Psychotherapy, and Psychosomatics, RWTH Aachen University, Aachen, Germany;MR Centre of Excellence, Medical University of Vienna, Vienna, Austria;Institute for Clinical, Biological and Differential Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria;Department of Psychiatry, Psychotherapy, and Psychosomatics, RWTH Aachen University, Aachen, Germany;

关键词: Culture;    Gender;    Emotion;    Amygdala;    fMRI;   

DOI  :  10.1186/1471-2202-13-54

 received in 2011-10-03, accepted in 2012-05-29,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundMounting evidence indicates that humans have significant difficulties in understanding emotional expressions from individuals of different ethnic backgrounds, leading to reduced recognition accuracy and stronger amygdala activation. However, the impact of gender on the behavioral and neural reactions during the initial phase of cultural assimilation has not been addressed. Therefore, we investigated 24 Asians students (12 females) and 24 age-matched European students (12 females) during an explicit emotion recognition task, using Caucasian facial expressions only, on a high-field MRI scanner.ResultsAnalysis of functional data revealed bilateral amygdala activation to emotional expressions in Asian and European subjects. However, in the Asian sample, a stronger response of the amygdala emerged and was paralleled by reduced recognition accuracy, particularly for angry male faces. Moreover, no significant gender difference emerged. We also observed a significant inverse correlation between duration of stay and amygdala activation.ConclusionIn this study we investigated the “alien-effect” as an initial problem during cultural assimilation and examined this effect on a behavioral and neural level. This study has revealed bilateral amygdala activation to emotional expressions in Asian and European females and males. In the Asian sample, a stronger response of the amygdala bilaterally was observed and this was paralleled by reduced performance, especially for anger and disgust depicted by male expressions. However, no gender difference occurred. Taken together, while gender exerts only a subtle effect, culture and duration of stay as well as gender of poser are shown to be relevant factors for emotion processing, influencing not only behavioral but also neural responses in female and male immigrants.

【 授权许可】

Unknown   
© Derntl et al.; licensee BioMed Central Ltd. 2012. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.