杏仁核对自我概念清晰性的预测:来自VBM的证据

发布时间：2018-07-06 09:43

  本文选题：自我概念清晰性 + 特质焦虑　； 参考：《科学通报》2017年13期

【摘要】：自我概念清晰性是个体对自我概念了解的清楚程度,受自我威胁的影响.杏仁核是威胁信息加工的重要脑区,该区域的异常在特质焦虑等焦虑个体中均有所体现.虽然,目前缺乏杏仁核与自我概念清晰性之间关系的直接证据,但是通过研究特质焦虑-杏仁核-自我概念清晰性的关系,或许可以有助于进一步理解二者之间的关系.本研究基于体素的形态学分析(VBM)技术,在研究杏仁核与特质焦虑关系的基础上,探讨杏仁核对自我概念清晰性的预测作用.结果表明,特质焦虑和自我概念清晰性呈显著负相关;VBM分析发现,基底外侧杏仁核的区域灰质体积与特质焦虑显著正相关,而且该区域可以显著预测个体的自我概念清晰性水平.这些结果共同说明,随着杏仁核体积的增大,个体更易于受到自我威胁的影响,进而表现出较低的自我概念清晰性.
[Abstract]:The clarity of self-concept is the degree of understanding of self-concept, which is influenced by self-threat. Amygdala is an important brain area for the processing of threat information, and the abnormality of this area is reflected in anxiety individuals such as trait anxiety. Although there is no direct evidence of the relationship between amygdala and self-concept clarity, studying the relationship between trait anxiety, amygdala and self-concept clarity may be helpful to further understand the relationship between them. Based on the morphologic analysis of voxel (VBM) and the relationship between amygdala and trait anxiety, this study explored the predictive effect of amygdala nucleus self-concept clarity. The results showed that there was a significant negative correlation between trait anxiety and self-concept clarity. VBM analysis showed that the regional gray matter volume of the basal lateral amygdala was positively correlated with trait anxiety. Moreover, the region can significantly predict the level of self-concept clarity of an individual. These results suggest that with the increase of amygdala volume, individuals are more vulnerable to self-threat, and thus show lower self-concept clarity.
【作者单位】： 西南大学心理学部;西南大学认知与人格教育部重点实验室;新乡医学院心理学系;
【基金】：国家自然科学基金(31371055,31571137,31600927) 教育部人文社会科学研究青年基金(12YJC190014) 河南省教育厅人文社会科学研究项目(2017-ZZJH-422)资助
【分类号】：R338
，

本文编号：2102373