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Short-term meditation modulates EEG activity in subjects with post-traumatic residual disabilities. | LitMetric

AI Article Synopsis

  • A study was conducted to examine how meditation affects brain activity in individuals with post-traumatic residual disability (PTRD), using electroencephalography (EEG) to measure changes before and after the intervention.
  • Ten PTRD subjects and ten normal controls were compared, revealing that PTRD subjects showed increased gamma brain activity after meditation, indicating positive neurophysiological effects.
  • The findings suggest that meditation may enhance brain oscillatory activity, which could be linked to improvements in psychological symptoms related to quality of life for those with PTRD.

Article Abstract

Objective: Neurophysiological changes related to meditation have recently attracted scientific attention. We aimed to detect changes in electroencephalography (EEG) parameters induced by a meditative intervention in subjects with post-traumatic residual disability (PTRD), which has been confirmed for effectiveness and safety in a previous study. This will allow us to estimate the objective effect of this intervention at the neurophysiological level.

Methods: Ten subjects with PTRD were recruited and underwent psychological assessment and EEG recordings before and after the meditative intervention. Furthermore, 10 additional subjects were recruited as normal controls. Source current density as an EEG parameter was estimated by exact Low Resolution Electromagnetic Tomography (eLORETA). Comparisons of source current density in PTRD subjects after the meditative intervention with normal controls were investigated. Additionally, we compared source current density in PTRD subjects between before and after meditative intervention. Correlations between psychological assessments and source current density were also explored.

Results: After meditative intervention, PTRD subjects exhibited increased gamma activity in the left inferior parietal lobule relative to normal controls. In addition, changes of delta activity in the right precuneus correlated with changes in the psychological score on role physical item, one of the quality of life scales reflecting the work or daily difficulty due to physical problems.

Conclusions: These results show that the meditative intervention used in this study produces neurophysiological changes, in particular the modulation of oscillatory activity of the brain.

Significance: Our meditative interventions might induce the neurophysiological changes associated with the improvement of psychological symptoms in the PTRD subjects.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6402287PMC
http://dx.doi.org/10.1016/j.cnp.2019.01.003DOI Listing

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