Increased gray matter volume in the right angular and posterior parahippocampal gyri in loving-kindness meditators.
Increased gray matter volume in the right angular and posterior parahippocampal gyri in loving-kindness meditators.
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DOI：
10.1093/scan/nss076
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发表时间：
2013-01
影响因子：
4.2
通讯作者：
Lee TM
中科院分区：
文献类型：
--
作者：
Leung MK;Chan CC;Yin J;Lee CF;So KF;Lee TM
先前的基于体素的形态测量学（VBM）研究表明，冥想与冥想期间注意力或正念所需的认知过程区域的结构性大脑变化有关。这项VBM研究检查了与情绪导向的冥想练习相关的大脑变化：慈爱冥想（LKM）。一台3T磁共振成像（MRI）扫描仪捕获了25名男性的大脑结构图像，其中10人在小乘佛教传统中练习LKM至少5年。与新手相比，LKM专家的右侧角回和海马旁后回灰质体积更大。右角回以前没有报道过与冥想相关的结构差异，它在心灵和认知共情理论中的特定作用表明了LKM实践的独特性。这些区域对于与移情反应、焦虑和情绪相关的情感调节是重要的。与此同时，LKM专家左侧颞叶的灰质体积似乎更大，这一观察结果也在之前关于LKM以外的冥想方式的MRI冥想研究中报道过。总的来说，我们的研究结果表明，在LKM的经验可能会影响与情感调节相关的大脑结构。
Previous voxel-based morphometry (VBM) studies have revealed that meditation is associated with structural brain changes in regions underlying cognitive processes that are required for attention or mindfulness during meditation. This VBM study examined brain changes related to the practice of an emotion-oriented meditation: loving-kindness meditation (LKM). A 3 T magnetic resonance imaging (MRI) scanner captured images of the brain structures of 25 men, 10 of whom had practiced LKM in the Theravada tradition for at least 5 years. Compared with novices, more gray matter volume was detected in the right angular and posterior parahippocampal gyri in LKM experts. The right angular gyrus has not been previously reported to have structural differences associated with meditation, and its specific role in mind and cognitive empathy theory suggests the uniqueness of this finding for LKM practice. These regions are important for affective regulation associated with empathic response, anxiety and mood. At the same time, gray matter volume in the left temporal lobe in the LKM experts appeared to be greater, an observation that has also been reported in previous MRI meditation studies on meditation styles other than LKM. Overall, the findings of our study suggest that experience in LKM may influence brain structures associated with affective regulation.
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