How Mindfulness Meditation Training Reshapes Somatomotor Edge-Centric Connectivity: Insights for Healthy and Depressed Individuals
He, Y.; Lei, S. H.; Che, W. S.; Sacchet, M. D.; Yin, A. J.-W.; Gao, W.; Gu, A.; Chan, N.; Xiao, X.; Li, J.; Chen, J.; Wong, M.; Sou, E. K. L.; Shen, Y.; Quan, J.; Tou, W. I.; Lio, L. I.; Chou, C. C.; Zhang, P.; Liu, B.; Yuan, Z.
Show abstract
Somatic awareness is a fundamental practice for novice mindfulness practitioners. It has been proposed that mindfulness meditation training enhances brain function through somatic awareness in both non-clinical and clinical populations. However, the neural signatures underlying this mechanism remain poorly understood. In our study, we conducted single-blind mindfulness interventions in both healthy and depressed populations and examined whether somatomotor network (SMN)-related edge-centric functional connectivity (eFC) is modulated by mindfulness. Our findings revealed population-common eFC changes involving the SMN and attentional networks. Additionally, we identified population-specific eFC profiles engaging SMN-subcortical networks in the healthy population and SMN-default mode network interactions in the depressed population. Furthermore, support vector regression analysis demonstrated that these altered eFCs significantly predicted improvements in clinical measures after meditation training, including anxiety and insomnia, in both groups. In summary, our results highlight both shared and distinct neural signatures underlying mindfulness-related mental health improvements via somatic awareness.
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