Mysteries of Quantum Mind

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Friday, December 9, 2011

Brains of Buddhist monks scanned in meditation study






Study peers into brains of monks

In a laboratory tucked away off a noisy New York City street, a soft-spoken neuroscientist has been placing Tibetan Buddhist monks into a car-sized brain scanner to better understand the ancient practice of meditation.

But could this unusual research not only unravel the secrets of leading a harmonious life but also shed light on some of the world's more mysterious diseases?

Zoran Josipovic, a research scientist and adjunct professor at New York University, says he has been peering into the brains of monks while they meditate in an attempt to understand how their brains reorganise themselves during the exercise.

Since 2008, the researcher has been placing the minds and bodies of prominent Buddhist figures into a five-tonne (5,000kg) functional magnetic resonance imaging (fMRI) machine. 
The scanner tracks blood flow within the monks' heads as they meditate inside its clunky walls, which echoes a musical rhythm when the machine is operating.

Dr Josipovic, who also moonlights as a Buddhist monk, says he is hoping to find how some meditators achieve a state of "nonduality" or "oneness" with the world, a unifying consciousness between a person and their environment. 

Zoran Josipovic looking at brain scans on a computer The study specifically looks at the default network in the brain, which controls self-reflective thoughts

"One thing that meditation does for those who practise it a lot is that it cultivates attentional skills," Dr Josipovic says, adding that those harnessed skills can help lead to a more tranquil and happier way of being.

Meditation Can 'Turn Off' Regions of the Brain


Brain imaging shows experienced meditators can prevent their minds from wandering

By Robert Preidt
Tuesday, November 22, 2011

HealthDay news image (HealthDay News) -- A new study finds that people skilled at meditation seem able to turn off areas of the brain associated with daydreaming and psychiatric disorders such as autism and schizophrenia.

Learning more about how meditation works could help advance research into a number of diseases, according to lead author Dr. Judson Brewer, an assistant professor of psychiatry at Yale University.

He and his colleagues used functional MRI to assess brain activity in experienced and novice meditators as they performed three different meditation techniques. 
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.

Saturday, December 3, 2011

Can meditation change your brain? Contemplative neuroscientists believe it can



From CNN's Dan Gilgoff:

Can people strengthen the brain circuits associated with happiness and positive behavior,  just as we’re able to strengthen muscles with exercise? 


Can meditation change your brain? Contemplative neuroscientists believe it canRichard Davidson, who for decades has practiced Buddhist-style meditation – a form of mental exercise, he says – insists that we can.


And Davidson, who has been meditating since visiting India as a Harvard grad student in the 1970s, has credibility on the subject beyond his own experience.


A trained psychologist based at the University of Wisconsin, Madison, he has become the leader of a relatively new field called contemplative neuroscience - the brain science of meditation.


Over the last decade, Davidson and his colleagues have produced scientific evidence for the theory that meditation - the ancient eastern practice of sitting, usually accompanied by focusing on certain objects - permanently changes the brain for the better.


“We all know that if you engage in certain kinds of exercise on a regular basis you can strengthen certain muscle groups in predictable ways,” Davidson says in his office at the University of Wisconsin, where his research team has hosted scores of Buddhist monks and other meditators for brain scans.


“Strengthening neural systems is not fundamentally different,” he says.  “It’s basically replacing certain habits of mind with other habits.”