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Relationship between trust in neighbors and regional brain volumes in a population-based study

机译：基于人群研究中邻居和区域大脑体积的信任的关系

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摘要

Trust is a fundamental part of human interpersonal relationships, and among other complex factors it is shown to be linked with demographic characteristics and specific regions of the brain. The authors utilized a large, community-based database gathered from the Dallas Heart Study to determine specific brain regions associated with an individual's trust in neighbors. A trust questionnaire was taken and regional brain volumes were determined from structural magnetic resonance imaging. Two analyses using logistic regressions in a training set and validation set were performed to investigate the association between measures of trust and bilateral brain region volumes and thickness. A total of 1527 participants were included in the final analysis. Right caudal anterior cingulate cortex thickness and left caudate volume were inversely correlated with neighbor trust, while left amygdala volume was positively correlated with neighbor trust. Greater age and higher level of education were positively correlated with neighbor trust. African Americans showed less neighbor trust than Caucasians and Hispanics. Anterior cingulate cortex, caudate, and amygdala are all integral parts of the salience network; thus, results of this study suggest that the salience network, the brain network responsible for functions such as communication and social behavior, may play a role in the formation of interpersonal trust.
机译：信任是人类人际关系的基本组成部分，在其他复杂因素中，它与人口统计学特征和大脑特定区域有关。作者利用从达拉斯心脏研究中收集的一个大型社区数据库来确定与个体对邻居信任相关的特定大脑区域。进行信任问卷调查，并根据结构磁共振成像确定区域脑容量。在训练集和验证集中使用逻辑回归进行了两项分析，以研究信任测量与双侧大脑区域体积和厚度之间的关联。最终分析共包括1527名参与者。右尾前扣带回皮质厚度和左尾状核体积与邻居信任度呈负相关，而左杏仁核体积与邻居信任度呈正相关。年龄越大、受教育程度越高与邻居信任呈正相关。与高加索人和拉美裔相比，非裔美国人表现出更少的邻居信任。前扣带回皮质、尾状核和杏仁核都是显著性网络的组成部分；因此，本研究结果表明，负责沟通和社会行为等功能的大脑网络突显网络可能在人际信任的形成中发挥作用。

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