US News reports on the study:
Regardless of the type of meditation, skilled meditators had decreased activity in the brain's default mode network, which has been linked to attention lapses and disorders such as anxiety, attention deficit hyperactivity disorder, and the buildup of beta amyloid plaques associated with Alzheimer's disease.
The researchers also found that when the default mode network (which consists of the medial prefrontal and posterior cingulate cortex) was active, brain regions associated with self-monitoring and cognitive control were also activated in experienced meditators, but not novices.
This suggests that skilled meditators constantly monitor and suppress the emergence of "me" thoughts and mind wandering. If they become too strong, these two states of mind are associated with diseases such as autism and schizophrenia.
The experienced meditators were able to co-activate the two brain regions both during meditation and while resting, which suggests they have developed a "new" default mode that's more present-centered and less self-centered, the researchers said.Namaste to that!