This probably maps from the conclusion of white matter efficiency being increased due to 4 weeks of meditation.
http://www.medscape.com/viewarticle/815009?src=wnl_edit_specol&uac=107573PV
Meditation in patients with mild cognitive impairment (MCI) may slow
progression to Alzheimer's disease (AD), new research suggests.
A
small, randomized pilot study of adult patients with MCI showed that
those who received mindfulness-based stress reduction (MBSR) therapy for
8 weeks had a greater increase in functional connectivity between
brain regions related to both MCI and AD than those who received usual
care.
These regions included the posterior cingulate cortex, the bilateral medial prefrontal cortex, and the left hippocampus.
In
addition, there was "a trend" toward less bilateral hippocampal volume
atrophy in the patients who received MBSR compared with the usual-care
group.
"This study suggests that an intervention with meditation
and yoga may impact the areas of the brain that are most susceptible to
developing dementia," lead author Rebecca Erwin Wells, MD, MPH, who
was at Beth Israel Deaconess Medical Center (BIDMC) at Harvard Medical
School in Boston, Massachusetts, at the time of the study, told Medscape Medical News.
More at link.
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