Saturday, May 15, 2010
Goenka Meditation activates Occipital Gamma
In Occipital gamma activation during Vipassana meditation, 16 subjects with 2.5-40 years of meditation in the Goenka style of vipassana showed significant decreases in frontal delta (1st image) and significant increases in occipital gamma (2nd image). These images represent change from control periods to meditation periods.
It is interesting that the Goenka method involves scanning the body sensations from head to toe and back, and thus there might be a proprioceptive visual component that generates the gamma increase in the visual cortex. It is also interesting that the gamma effects are so different from the areas reported in Davidson's study, with no frontal effects.
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