Skip to main content

Evidence builds that meditation strengthens the brain


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. See Also: Health & Medicine Nervous System Psychology Research Brain Tumor Mind & Brain Neuroscience Intelligence Brain Injury Living Well Reference Thalamus Alpha wave Cerebral contusion Functional neuroimaging 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."

Labels:

Comments

Post a Comment

Popular posts from this blog

Risks in Loving Men Who Can’t Commit

Commitment phobic men are not wounded birds waiting to be nursed to health. Should women spend time, energy, and emotion on a man who may never be a part of their future? All too often women say to themselves or their friends: “Well, he wouldn’t commit in the past, but I’m different.  I have more patience than the other women he dated, and I am more understanding than most women. I can help him.”    If you have heard yourself saying the words “I can help him,” think of yourself as being trapped in the “wounded bird syndrome”  in which your desire to nurse someone back to health is so strong that it clouds your logical thinking. Before getting too involved with a commitment phobic man consider asking yourself  these 20 Questions to Finding New Love and Marriage.  And then make a conscious effort to understand what is most important to you. 2 Virtues Enhance Falling in Love Forever. Also watc...
Post a Comment
Read more

Emotional eating is when people use food as a way to deal with feelings instead of to satisfy hunger.

Emotional eating is when people use food as a way to deal with feelings instead of to satisfy hunger. We've all been there, finishing a whole bag of chips out of boredom or downing cookie after cookie while cramming for a big test. But when done a lot — especially without realizing it — emotional eating can affect weight, health, and overall well-being. Not many of us make the connection between eating and our feelings. But understanding what drives emotional eating can help people take steps to change it. One of the biggest myths about emotional eating is that it's prompted by negative feelings. Yes, people often turn to food when they're stressed out, lonely, sad, anxious, or bored. But emotional eating can be linked to positive feelings too, like the romance of sharing dessert on Valentine's Day or the celebration of a holiday feast. Sometimes emotional eating is tied to major life events, like a death or a divorce. More often, though, it's the countless ...
Post a Comment
Read more

Statin side effects: How common are memory loss, diabetes, and muscle aches?

  When the US Food and Drug Administration told the makers of cholesterol-lowering statins to add new side effect warnings to their labels last week, many of the 40 million statin users may have been unaware of the extent of the risks associated with these drugs that have been touted by some cardiologists to be safer than aspirin. No question, statins -- which include Lipitor (atorvastatin), Zocor (simvastatin), and Crestor (rosuvastatin) -- are relatively safe drugs, and they’ve saved thousands of lives over the past 20 years, particularly in men with established heart disease. But like any drug they can cause problems in some, including muscle aches, an increased risk of diabetes, and, gaining recent attention, memory loss. University of California-San Diego researcher Beatrice Golomb published a paper two years ago describing 171 statin users who reported that they had developed memory problems and dementia-like symptoms that the statin users attributed to their use of t...
Post a Comment
Read more