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The effect of body-mind relaxation meditation induction on major depressive disorder: A resting-state fMRI study.

Fangfang Chen, Xueyu Lv, Jiliang Fang, Shan Yu, Jing Sui, Lingzhong Fan, Tao Li, Yang Hong, Xiaoling Wang, Weidong Wang, Tianzi Jiang

Journal of Affective Disorders September 1, 2015 DOI: 10.1016/j.jad.2015.04.030 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational case-control study with repeated measures Peer reviewed
Sample size 45
Population 21 patients with major depressive disorder and 24 age- and gender-matched healthy controls
Measures Amplitude of low-frequency fluctuations (ALFF), functional connectivity, Hamilton Rating Scales for Depression (HDRS)
Topics Depression Meditation
Keywords Body–mind relaxation meditation Cognitive reappraisal Medial frontal cortex Orbitofrontal cortex FMRI
Key findings After body-mind relaxation meditation induction, both depressed patients and healthy controls showed decreased ALFF in the bilateral frontal pole (BA10). Only depressed patients showed increased functional connectivity from the right dorsal medial prefrontal cortex to the left dorsolateral prefrontal cortex and left lateral orbitofrontal cortex. The authors propose that meditation induction may regulate prefrontal cortex activity and help patients construct reappraisal strategies.

Abstract

Meditation has been increasingly evaluated as an important complementary therapeutic tool for the treatment of depression. The present study employed resting-state functional magnetic resonance imaging (rs-fMRI) to examine the effect of body-mind relaxation meditation induction (BMRMI) on the brain activity of depressed patients and to investigate possible mechanisms of action for this complex intervention. 21 major depressive disorder patients (MDDs) and 24 age and gender-matched healthy controls (HCs) received rs-fMRI scans at baseline and after listening to a selection of audio designed to induce body-mind relaxation meditation. The rs-fMRI data were analyzed using Matlab toolbox to obtain the amplitude of low-frequency fluctuations (ALFF) of the BOLD signal for the whole brain. A mixed-design repeated measures analysis of variance (ANOVA) was performed on the whole brain to find which brain regions were affected by the BMRMI. An additional functional connectivity analysis was used to identify any atypical connection patterns after the BMRMI. After the BMRMI experience, both the MDDs and HCs showed decreased ALFF values in the bilateral frontal pole (BA10). Additionally, increased functional connectivity from the right dorsal medial prefrontal cortex (dmPFC) to the left dorsal lateral prefrontal cortex (dlPFC) and the left lateral orbitofrontal cortex (OFC) was identified only in the MDDs after the BMRMI. In order to exclude the impact of other events on the participants׳ brain activity, the Hamilton Rating Scales for Depression (HDRS) was not measured after the body-mind relaxation induction. Our findings support the hypothesis that body-mind relaxation meditation induction may regulate the activities of the prefrontal cortex and thus may have the potential to help patients construct reappraisal strategies that can modulate the brain activity in multiple emotion-processing systems.

Comparable studies

Other observational and cohort studies on depression, most cited first.

Study Year Design Participants
Metacognitive awareness and prevention of relapse in depression: Empirical evidence. Residually depressed patients and nondepressed controls; recovered depressed patients 2002 Observational cohort with intervention components
Psilocybin for treatment-resistant depression: fMRI-measured brain mechanisms. Patients with treatment-resistant depression 2017 Observational cohort n = 19
Antidepressant effects of a single dose of ayahuasca in patients with recurrent depression: a preliminary report Patients with a depressive disorder 2015 Observational study
Concomitant BDNF and sleep slow wave changes indicate ketamine-induced plasticity in major depressive disorder Patients with treatment-resistant major depressive disorder 2012 Observational cohort n = 30
Altered peripheral immune profiles in treatment-resistant depression: response to ketamine and prediction of treatment outcome Healthy controls and actively depressed patients with treatment-resistant depression... 2017 Observational cohort n = 59

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