BMRMI Reduces Depressive Rumination Possibly through Improving Abnormal FC of Dorsal ACC.
Neural Plasticity January 1, 2022 Ming-Hao Yang, Zhi-Peng Guo, Xue-Yu Lv et al.
Rumination, a common symptom of major depressive disorder (MDD), may be regulated by a body-mind relaxation meditation induction (BMRMI) intervention through changes in brain connectivity. In 25 people with MDD and 24 healthy controls, resting-state fMRI showed that at baseline, those with MDD had stronger functional connectivity between the right dorsal anterior cingulate cortex (dACC) and right superior frontal gyrus than controls. After the intervention, the MDD group showed weaker connectivity between the left dACC and right middle frontal gyrus, while controls showed enhanced connectivity in the right dACC region. The strength of right dACC-right superior frontal gyrus connectivity correlated positively with rumination scores across all participants at baseline. These findings suggest BMRMI may alter self-referential and cognitive processing by modulating dACC connectivity in MDD with rumination.