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首页> 外文期刊>Neuroscience: An International Journal under the Editorial Direction of IBRO >THE NETWORK PROPERTY OF THE THALAMUS IN THE DEFAULT MODE NETWORK IS CORRELATED WITH TRAIT MINDFULNESS
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THE NETWORK PROPERTY OF THE THALAMUS IN THE DEFAULT MODE NETWORK IS CORRELATED WITH TRAIT MINDFULNESS

机译：默认模式网络中的Thalamus的网络属性与特质正念度相关

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摘要

Mindfulness is typically defined as nonjudgmental awareness of experiences in the present moment, which is beneficial for mental and physical well-being. Previous studies have identified multiple regions in the default mode network (DMN) that are involved in mindfulness, but little is known about how these regions work collaboratively as a network. Here, we used resting-state functional magnetic resonance imaging to investigate the role of the DMN in trait mindfulness by correlating spontaneous functional connectivity among DMN nodes with self-reported trait mindfulness in a large population of young human adults. Among all pairs of the DMN nodes, we found that individuals with weaker functional connectivity between the thalamus and posterior cingulate cortex (PCC) were more mindful of the present. Post-hoc analyses of these two nodes further revealed that graph-based nodal properties of the thalamus, not the PCC, were negatively correlated with trait mindfulness, suggesting that a low involvement of the thalamus in the DMN is relevant for high trait mindfulness. Our findings not only suggest the thalamus as a switch between mind-wandering and mindfulness, but also invite future studies on mechanisms of how mindfulness produces beneficial effects by modulating the thalamus. (C) 2014 IBRO. Published by Elsevier Ltd. All rights reserved.
机译：正念度通常被定义为当前对体验的非判断性意识，这对身心健康有益。先前的研究已经确定了默认模式网络（DMN）中涉及正念的多个区域，但是对于这些区域作为网络如何协同工作知之甚少。在这里，我们使用静止状态功能磁共振成像，通过将DMN节点之间的自发功能连接与自我报告的特质正念相关联，来研究DMN在特质正念中的作用。在所有DMN节点对中，我们发现丘脑和后扣带回皮质（PCC）之间的功能连接性较弱的个人对目前的情况更为关注。对这两个节点的事后分析进一步表明，丘脑（而非PCC）的基于图的节点特性与特质正念度呈负相关，这表明丘脑在DMN中的低参与度与特质正念度有关。我们的研究结果不仅表明丘脑是在游荡和正念之间的转换，而且还希望将来对正念如何通过调节丘脑产生有益作用的机制进行研究。 （C）2014年IBRO。由Elsevier Ltd.出版。保留所有权利。

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