当前位置: X-MOL 学术Brain Cognit. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Reductions in perceived stress following Transcendental Meditation practice are associated with increased brain regional connectivity at rest.
Brain and Cognition ( IF 2.5 ) Pub Date : 2020-01-13 , DOI: 10.1016/j.bandc.2020.105517
Giulia Avvenuti 1 , Andrea Leo 1 , Luca Cecchetti 1 , Maria Fatima Franco 2 , Frederick Travis 3 , Davide Caramella 4 , Giulio Bernardi 1 , Emiliano Ricciardi 1 , Pietro Pietrini 1
Affiliation  

Transcendental Meditation (TM) is defined as a mental process of transcending using a silent mantra. Previous work showed that relatively brief period of TM practice leads to decreases in stress and anxiety. However, whether these changes are subserved by specific morpho-functional brain modifications (as observed in other meditation techniques) is still unclear. Using a longitudinal design, we combined psychometric questionnaires, structural and resting-state functional magnetic resonance imaging (RS-fMRI) to investigate the potential brain modifications underlying the psychological effects of TM. The final sample included 19 naïve subjects instructed to complete two daily 20-min TM sessions, and 15 volunteers in the control group. Both groups were evaluated at recruitment (T0) and after 3 months (T1). At T1, only meditators showed a decrease in perceived anxiety and stress (t(18) = 2.53, p = 0.02), which correlated negatively with T1-T0 changes in functional connectivity among posterior cingulate cortex (PCC), precuneus and left superior parietal lobule. Additionally, TM practice was associated with increased connectivity between PCC and right insula, likely reflecting changes in interoceptive awareness. No structural changes were observed in meditators or control subjects. These preliminary findings indicate that beneficial effects of TM may be mediated by functional brain changes that take place after a short practice period of 3 months.

中文翻译:

先验冥想练习后感觉压力的减少与静息时大脑区域的连通性增加有关。

先验冥想(TM)被定义为使用无声咒语进行超越的心理过程。先前的工作表明,TM训练的相对短暂的时间可以减轻压力和焦虑。但是,尚不清楚这些变化是否由特定的形态功能脑部修饰(如在其他冥想技术中观察到的)所保留。使用纵向设计,我们结合了心理测量问卷,结构和静止状态功能磁共振成像(RS-fMRI),以研究潜在的大脑修饰潜在的TM心理效应。最终样本包括19名天真的受试者,被要求完成每天两次的20分钟TM训练,以及对照组中的15名志愿者。两组均在招募时(T0)和3个月后(T1)进行评估。在T1,只有冥想者表现出感知到的焦虑和压力的减少(t(18)= 2.53,p = 0.02),与后扣带回皮质(PCC),前突神经和顶上小叶的功能连通性的T1-T0变化负相关。此外,TM练习与PCC和右岛之间的连通性增加有关,可能反映了感知觉意识的变化。在冥想者或对照者中未观察到结构变化。这些初步发现表明,TM的有益作用可能是在短短3个月的练习期后发生的功能性大脑变化介导的。此外,TM练习与PCC和右岛之间的连通性增加有关,这可能反映了感知知觉的变化。在冥想者或对照者中未观察到结构变化。这些初步发现表明,TM的有益作用可能是在3个月的短暂练习后发生的功能性大脑变化介导的。此外,TM练习与PCC和右岛之间的连通性增加有关,这可能反映了感知知觉的变化。在冥想者或对照者中未观察到结构变化。这些初步发现表明,TM的有益作用可能是在3个月的短暂练习后发生的功能性大脑变化介导的。
更新日期:2020-01-13
down
wechat
bug