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Zen Meditation: Thicker brains fend off pain

Date:
February 24, 2010
Source:
University of Montreal
Summary:
People can reduce their sensitivity to pain by thickening their brain, according to a new study. Researchers have made their discovery by comparing the gray matter thickness of Zen meditators and non-meditators. They found evidence that practicing the centuries-old discipline of Zen can reinforce a central brain region (anterior cingulate) that regulates pain.

Woman meditation. People can reduce their sensitivity to pain by thickening their brain, according to a new study. Researchers made their discovery by comparing the grey matter thickness of Zen meditators and non-meditators.
Credit: iStockphoto/Yanik Chauvin

People can reduce their sensitivity to pain by thickening their brain, according to a new study published in a special issue of the American Psychological Association journal, Emotion. Researchers from the Université de Montréal made their discovery by comparing the grey matter thickness of Zen meditators and non-meditators. They found evidence that practicing the centuries-old discipline of Zen can reinforce a central brain region (anterior cingulate) that regulates pain.

"Through training, Zen meditators appear to thicken certain areas of their cortex and this appears to be underlie their lower sensitivity to pain," says lead author Joshua A. Grant, a doctoral student in the Université de Montréal Department of Physiology and Institut universitaire de gériatrie de Montréal. "We found a relationship between cortical thickness and pain sensitivity, which supports our previous study on how Zen meditation regulates pain."

As part of this study, scientists recruited 17 meditators and 18 non-meditators who in addition had never practiced yoga, experienced chronic pain, neurological or psychological illness. Grant and his team, under the direction of Pierre Rainville of the Université de Montréal and the Institut universitaire de gériatrie de Montréal, measured thermal pain sensitivity by applying a heated plate to the calf of participants and followed by scanning the brains of subjects with structural magnetic resonance imaging. According to MRI results, central brain regions that regulate emotion and pain were significantly thicker in meditators compared to non-meditators.

"The often painful posture associated with Zen meditation may lead to thicker cortex and lower pain sensitivity," says Grant, noting that meditative practices could be helpful in general for pain management, for preventing normal age-related grey matter reductions or potentially for any condition where the grey matter is compromised such as stroke.

This study was supported jointly by a Canadian Institutes of Health Research and a Mind and Life Institute Varela Grant.


Story Source:

The above story is based on materials provided by University of Montreal. Note: Materials may be edited for content and length.


Journal Reference:

  1. Grant et al. Cortical thickness and pain sensitivity in Zen meditators.. Emotion, 2010; 10 (1): 43 DOI: 10.1037/a0018334

Cite This Page:

University of Montreal. "Zen Meditation: Thicker brains fend off pain." ScienceDaily. ScienceDaily, 24 February 2010. <www.sciencedaily.com/releases/2010/02/100224103357.htm>.
University of Montreal. (2010, February 24). Zen Meditation: Thicker brains fend off pain. ScienceDaily. Retrieved August 2, 2014 from www.sciencedaily.com/releases/2010/02/100224103357.htm
University of Montreal. "Zen Meditation: Thicker brains fend off pain." ScienceDaily. www.sciencedaily.com/releases/2010/02/100224103357.htm (accessed August 2, 2014).

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