Meditation experience is associated with increased cortical thickness

These data provide the first structural evidence for experience-dependent cortical plasticity associated with meditation practice. Brain regions associated with attention, interoception and sensory processing were thicker in meditation participants than matched controls, including the prefrontal cortex and right anterior insula.

Brain cortical thickness

Above: Cortical regions thicker in meditators than in controls in both hemispheres.
This statistical map depicts between-group differences in thickness at each point on the cortical surface.

Between-group differences in prefrontal cortical thickness were most pronounced in older participants, suggesting that meditation might offset age-related cortical thinning.

Increased Cortical ThicknessIn these graphs, the mean cortical thickness of each participant in the region of insula (on the left) and BA 9/10 (on the right) plotted versus age. Meditators are represented by blue circles and control participants by red squares. Note that meditators were able to keep their cortical thickness throughout their lives, while the control group faced a decrease in these regions.

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