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Showing posts with label MRI brain scan. Show all posts
Showing posts with label MRI brain scan. Show all posts

Friday, January 16, 2015

Harvard Unveils MRI Study Proving Meditation Actually Rebuilds Brain’s Gray Matter In 8 Weeks


Contemporary allopathic practitioners have finally come around to exploring and, finally, acknowledging the efficacies of meditation and related practices, all be it rather grudgingly by myriad "scientists".  Approaching human evolution maturely, intelligently, rationally, intuitionally, and with practicality in a progressive manner has always been germane to tantra and tantric practice around the world.  

Tantric practice, both old and modern, has been developed through trial and error, and by sharing among mature practitioners in subtlety and rapport.  Actually doing tantric practices proves to the practitioner what Western medicine has gotten around to exploring and discovering.  Even at the moment of certain meditation techniques, practitioners experience escalations in neuro-activity they can feel in parts of their brain involved with such specific meditation practices.  

The Harvard study bellow confirms what meditators have known for thousands of years from actual personal experience.  

Guest article

Test subjects taking part in an 8-week program of mindfulness meditation showed results that astonished even the most experienced neuroscientists at Harvard University.  The study was led by a Harvard-affiliated team of researchers based at Massachusetts General Hospital, and the team’s MRI scans documented for the very first time in medical history how meditation produced massive changes inside the brain’s gray matter.  “Although the practice of meditation is associated with a sense of peacefulness and physical relaxation, practitioners have long claimed that meditation also provides cognitive and psychological benefits that persist throughout the day,” says study senior author Sara Lazar of the MGH Psychiatric Neuroimaging Research Program and a Harvard Medical School instructor in psychology.  “This study demonstrates that changes in brain structure may underlie some of these reported improvements and that people are not just feeling better because they are spending time relaxing.”    

Sue McGreevey of MGH writes: “Previous studies from Lazar’s group and others found structural differences between the brains of experienced meditation practitioners and individuals with no history of meditation, observing thickening of the cerebral cortex in areas associated with attention and emotional integration.  But those investigations could not document that those differences were actually produced by meditation.”  Until now, that is.  The participants spent an average of 27 minutes per day practicing mindfulness exercises, and this is all it took to stimulate a major increase in gray matter density in the hippocampus, the part of the brain associated with self-awareness, compassion, and introspection.  McGreevey adds:  “Participant-reported reductions in stress also were correlated with decreased gray-matter density in the amygdala, which is known to play an important role in anxiety and stress.  None of these changes were seen in the control group, indicating that they had not resulted merely from the passage of time.”  
“It is fascinating to see the brain’s plasticity and that, by practicing meditation, we can play an active role in changing the brain and can increase our well-being and quality of life,” says Britta Hölzel, first author of the paper and a research fellow at MGH and Giessen University in Germany.  You can read more about the remarkable study by visiting Harvard.edu.  If this is up your alley then you need to read this: “Listen As Sam Harris Explains How To Tame Your Mind (No Religion Required)”  

This article originally appeared here  

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Thursday, October 3, 2013

Evidence Continues to Build That Meditation Strengthens the Brain

Guest article

Earlier evidence out of UCLA suggested that meditating for years thickens the brain (in a good way) and strengthens the connections between brain cells.  Now a further report by UCLA researchers suggests yet another benefit.


Eileen Luders, an assistant professor at the UCLA Laboratory of Neuro Imaging, and colleagues, have found that long-term meditators have larger amounts of gyrification ("folding" of the cortex, which may allow the brain to process information faster) than people who do not meditate. Further, a direct correlation was found between the amount of gyrification and the number of meditation years, possibly providing further proof of the brain's neuroplasticity, or ability to adapt to environmental changes. 

The article appears in the online edition of the journal Frontiers in Human Neuroscience.

The cerebral cortex is the outermost layer of neural tissue. Among other functions, it plays a key role in memory, attention, thought and consciousness. Gyrification or cortical folding is the process by which the surface of the brain undergoes changes to create narrow furrows and folds called sulci and gyri. Their formation may promote and enhance neural processing. Presumably then, the more folding that occurs, the better the brain is at processing information, making decisions, forming memories and so forth.

"Rather than just comparing meditators and non-meditators, we wanted to see if there is a link between the amount of meditation practice and the extent of brain alteration," said Luders. "That is, correlating the number of years of meditation with the degree of folding."

Of the 49 recruited subjects, the researchers took MRI scans of 23 meditators and compared them to 16 control subjects matched for age, handedness and sex. (Ten participants dropped out.) The scans for the controls were obtained from an existing MRI database, while the meditators were recruited from various meditation venues. The meditators had practiced their craft on average for 20 years using a variety of meditation types -- Samatha, Vipassana, Zen and more. The researchers applied a well-established and automated whole-brain approach to measure cortical gyrification at thousands of points across the surface of the brain.

They found pronounced group differences (heightened levels of gyrification in active meditation practitioners) across a wide swatch of the cortex, including the left precentral gyrus, the left and right anterior dorsal insula, the right fusiform gyrus and the right cuneus.

Perhaps most interesting, though, was the positive correlation between the number of meditation years and the amount of insular gyrification.

"The insula has been suggested to function as a hub for autonomic, affective and cognitive integration," said Luders. "Meditators are known to be masters in introspection and awareness as well as emotional control and self-regulation, so the findings make sense that the longer someone has meditated, the higher the degree of folding in the insula."

While Luders cautions that genetic and other environmental factors could have contributed to the effects the researchers observed, still, "The positive correlation between gyrification and the number of practice years supports the idea that meditation enhances regional gyrification."
  
Other authors of the study included Florian Kurth, Emeran A. Mayer, Arthur W.Toga, and Katherine L. Narr, all of UCLA, and Christian Gaser, University of Jena, Germany. Funding was provided by several organizations, including the National Institutes of Health.  The authors report no conflict of interest.


This article originally appeared HERE  

Do the mysteries of and about shamanism, meditation, tantra, yoga, mindfulness, intuition, and consciousness seem, at times, to be more confusing than you can grasp?  http://bit.ly/MysticalPresentations3

Instructor in tantra psychology, presenting rational articulation of intuitional science with cogent practical exercises bringing greater personal awareness and cultivation of subtler realms, imbuing new and meaningful talents into participants' lives.  Explore further bringing such capabilities into your realm, both personal and at work.  Contact HERE

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Wednesday, March 14, 2012

Left Brain / Right Brain: Are Demarcated Functionalities a Myth?

Left Brain versus Right Brain (myth)

Rick Nauert, PhD (Senior Editor, PsychCentral.com), reviewed by John M. Grohol, Psy.D.

Visual creativity uses both right, left brain

The common belief that the right hemisphere of the brain is the source of creativity while the left brain is responsible for logic and math may well be less true than once thought.

In a quest to determine the exact source of creativity in the brain, researchers have found that the left hemisphere of your brain is critical for creative thinking. The finding adds an asterisk to the belief that if you paint or sculpt, you are right-brained.

Researchers discovered that while the right half of the brain performs the bulk of the creative process, the left half makes important contributions.
The study, posted online in Social Cognitive and Affective Neuroscience, focuses on how the brain... More

Understanding the Myth and Reality of Left Brain and Right Brain Dominance
(About.com Guide)
Have you ever heard people say that they tend to be more of a right-brain or left-brain thinker?

From books to TV programs, you've probably heard the phrase mentioned numerous times or perhaps you've even taken an online test to determine which type best describes you.

What is Left Brain-Right Brain Theory?

According to the theory of left-brain versus right-brain dominance, each side of the brain controls different types of thinking. Additionally, people are said to prefer one type of thinking over the other. For example, a person who is "left-brained" is often said to be more logical, analytical, and objective, while a person who is "right-brained" is said to be more intuitive, [creative] thoughtful, and subjective. More  
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Do the mysteries of and about shamanism, meditation, tantra, yoga, mindfulness, intuition, and consciousness seem, at times, to be more confusing than you can grasp?  http://bit.ly/MysticalPresentations3

Sparkling Minds Expanding with the Universe

Instructor in Tantra Psychology, presenting rational articulation of intuitional science with cogent practical exercises bringing greater personal awareness and cultivation of subtler realms, imbuing new and meaningful talents into participants' lives.  Explore further bringing such capabilities into your realm, both personal and at work.  Contact HERE

Making a difference for the psychic, moral and physical development of youth, make a difference through and for our Youth Intuitional Development Program