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The effects of mind-body training on stress reduction, positive affect, and plasma catecholamines.

Ye-Ha Jung, Do‐hyung Kang, Joon Hwan Jang, Hye-Yoon Park, Min Soo Byun, Soo Jin Kwon, Go-Eun Jang, Ul Soon Lee, Seung Chan An, Jun Soo Kwon

Neuroscience Letters July 26, 2010 DOI: 10.1016/j.neulet.2010.05.048 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational cross-sectional study Peer reviewed
Sample size 124
Population 67 regular practitioners of "Brain-Wave Vibration" mind-body training and 57 healthy control subjects
Measures Stress Response Inventory (SRI-MF), Positive Affect and Negative Affect Scale (PANAS), plasma norepinephrine, epinephrine, and dopamine levels
Key findings Meditation practitioners showed higher positive affect scores and lower stress scores than controls, along with higher plasma dopamine levels. Stress and positive affect were negatively correlated in controls but not in meditators, and somatization correlated with catecholamine ratios only in controls. The authors suggest mind-body training may influence stress, positive affect, and sympathetic nervous system activity including dopamine.

Abstract

This study was designed to assess the association between stress, positive affect and catecholamine levels in meditation and control groups. The meditation group consisted of 67 subjects who regularly engaged in mind-body training of "Brain-Wave Vibration" and the control group consisted of 57 healthy subjects. Plasma catecholamine (norepinephrine (NE), epinephrine (E), and dopamine (DA)) levels were measured, and a modified form of the Stress Response Inventory (SRI-MF) and the Positive Affect and Negative Affect Scale (PANAS) were administered. The meditation group showed higher scores on positive affect (p=.019) and lower scores on stress (p<.001) compared with the control group. Plasma DA levels were also higher in the meditation (p=.031) than in the control group. The control group demonstrated a negative correlation between stress and positive affects (r=-.408, p=.002), whereas this correlation was not observed in the meditation group. The control group showed positive correlations between somatization and NE/E (r=.267, p=.045) and DA/E (r=.271, p=.042) ratios, whereas these correlations did not emerge in the meditation group. In conclusion, these results suggest that meditation as mind-body training is associated with lower stress, higher positive affect and higher plasma DA levels when comparing the meditation group with the control group. Thus, mind-body training may influence stress, positive affect and the sympathetic nervous system including DA activity.

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