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Ergebnisse 2 Einträge
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Mindfulness meditators practice the non-judgmental observation of the ongoing stream of internal experiences as they arise. Using voxel-based morphometry, this study investigated MRI brain images of 20 mindfulness (Vipassana) meditators (mean practice 8.6 years; 2 h daily) and compared the regional gray matter concentration to that of non-meditators matched for sex, age, education and handedness. Meditators were predicted to show greater gray matter concentration in regions that are typically activated during meditation. Results confirmed greater gray matter concentration for meditators in the right anterior insula, which is involved in interoceptive awareness. This group difference presumably reflects the training of bodily awareness during mindfulness meditation. Furthermore, meditators had greater gray matter concentration in the left inferior temporal gyrus and right hippocampus. Both regions have previously been found to be involved in meditation. The mean value of gray matter concentration in the left inferior temporal gyrus was predictable by the amount of meditation training, corroborating the assumption of a causal impact of meditation training on gray matter concentration in this region. Results suggest that meditation practice is associated with structural differences in regions that are typically activated during meditation and in regions that are relevant for the task of meditation.
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This study investigated differences in brain activation during meditation between meditators and non-meditators. Fifteen Vipassana meditators (mean practice: 7.9 years, 2h daily) and fifteen non-meditators, matched for sex, age, education, and handedness, participated in a block-design fMRI study that included mindfulness of breathing and mental arithmetic conditions. For the meditation condition (contrasted to arithmetic), meditators showed stronger activations in the rostral anterior cingulate cortex and the dorsal medial prefrontal cortex bilaterally, compared to controls. Greater rostral anterior cingulate cortex activation in meditators may reflect stronger processing of distracting events. The increased activation in the medial prefrontal cortex may reflect that meditators are stronger engaged in emotional processing.
Erkunden
Team
Eintragsart
Sprache
- Englisch (2)
Thema
- *Meditation
- Adult (2)
- Attention/physiology (1)
- Awareness/*physiology (1)
- Brain/anatomy & histology/*physiology (1)
- *Brain Mapping (2)
- Case-Control Studies (1)
- Evoked Potentials/physiology (1)
- Female (2)
- Frontal Lobe/blood supply/*physiology (1)
- Functional Laterality/*physiology (1)
- Functional Laterality/physiology (1)
- Gyrus Cinguli/blood supply/*physiology (1)
- Humans (2)
- Image Processing, Computer-Assisted/methods (1)
- Magnetic Resonance Imaging (1)
- Magnetic Resonance Imaging/methods (1)
- Male (2)
- Matched-Pair Analysis (1)
- Mathematics (1)
- Mental Processes/*physiology (1)
- Organ Size (1)
- Oxygen/blood (1)