Mind-Body Practice Changes Fractional Amplitude of Low Frequency Fluctuations in Intrinsic Control Networks.

Author: Wei GX1,2,3, Gong ZQ1,3,4, Yang Z1,4, Zuo XN1,3
1Key Laboratory of Behavioral Science, Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of SciencesBeijing, China.
2Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, BostonMA, United States.
3Lifespan Connectomics and Behavior Team, Institute of Psychology, Chinese Academy of SciencesBeijing, China.
4University of Chinese Academy of SciencesBeijing, China.
Conference/Journal: Front Psychol.
Date published: 2017 Jul 7
Other: Volume ID: 8 , Pages: 1049 , Special Notes: doi: 10.3389/fpsyg.2017.01049. eCollection 2017. , Word Count: 214

Cognitive control impairment is a typical symptom largely reported in populations with neurological disorders. Previous studies have provided evidence about the changes in cognitive control induced by mind-body training. However, the neural correlates underlying the effect of extensive mind-body practice on cognitive control remain largely unknown. Using resting-state functional magnetic resonance imaging, we characterized dynamic fluctuations in large-scale intrinsic connectivity networks associated with mind-body practice, and examined their differences between healthy controls and Tai Chi Chuan (TCC) practitioners. Compared with a control group, the TCC group revealed significantly decreased fractional Amplitude of Low Frequency Fluctuations (fALFF) in the bilateral frontoparietal network, default mode network and dorsal prefrontal-angular gyri network. Furthermore, we detected a significant association between mind-body practice experience and fALFF in the default mode network, as well as an association between cognitive control performance and fALFF of the frontoparietal network. This provides the first evidence of large-scale functional connectivity in brain networks associated with mind-body practice, shedding light on the neural network changes that accompany intensive mind-body training. It also highlights the functionally plastic role of the frontoparietal network in the context of the "immune system" of mental health recently developed in relation to flexible hub theory.

KEYWORDS: Tai Chi Chuan; amplitude; fMRI; frontoparietal network; mind-body practice; plasticity

PMID: 28736535 PMCID: PMC5500650 DOI: 10.3389/fpsyg.2017.01049