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Brief Training in Meditation
May Help Manage Pain
Living with pain is stressful, but a surprisingly short investment
of time in mental training can help you cope.
A new study examining the perception of pain and the effects
of various mental training techniques has found that relatively
short and simple mindfulness meditation training can have a significant
positive effect on pain management.
Though pain research during the past decade has shown that extensive
meditation training can have a positive effect in reducing a person's
awareness and sensitivity to pain, the effort, time commitment,
and financial obligations required has made the treatment not
practical for many patients. Now, a new study by researchers at
the University of North Carolina at Charlotte shows that a single
hour of training spread out over a three day period can produce
the same kind of analgesic effect.
The research appears in an article by UNC Charlotte psychologists
Fadel Zeidan, Nakia S. Gordon, Junaid Merchant and Paula Goolkasian,
in the current issue of The Journal of Pain.
"This study is the first study to demonstrate the efficacy
of such a brief intervention on the perception of pain,"
noted Fadel Zeidan, a doctoral candidate in psychology at UNC
Charlotte and the paper's lead author. "Not only did the
meditation subjects feel less pain than the control group while
meditating but they also experienced less pain sensitivity while
not meditating."
Over the course of three experiments employing harmless electrical
shocks administered in gradual increments, the researchers measured
the effect of brief sessions of mindfulness meditation training
on pain awareness measuring responses that were carefully calibrated
to insure reporting accuracy. Subjects who received the meditation
training were compared to controls and to groups using relaxation
and distraction techniques. The researchers measured changes in
the subjects' rating of pain at "low" and "high"
levels during the different activities, and also changes in their
general sensitivity to pain through the process of calibrating
responses before the activities.
While the distraction activity which used a rigorous math
task to distract subjects from the effects of the stimulus
was effective in reducing the subject's perception of "high"
pain, the meditation activity had an even stronger reducing effect
on high pain, and reduced the perception of "low" pain
levels as well.
Further, the meditation training appeared to have an effect that
continued to influence the patients after the activity was concluded,
resulting in a general lowering of pain sensitivity in the subjects
a result that indicated that the effect of the meditation
was substantially different from the effect of the distraction
activity.
The finding follows earlier research studies that found differences
in pain awareness and other mental activities among long-time
practitioners of mindfulness meditation techniques.
"We knew already that meditation has significant effects
on pain perception in long-term practitioners whose brains seem
to have been completely changed -- we didn't know that you could
do this in just three days, with just 20 minutes a day,"
Zeidan said.
In assessing the first experiment, the researchers were not terribly
surprised to discover that meditation activity appeared to be
affecting the experimental subjects' perception of pain because
the researchers assumed that the change was mainly due to distraction,
a well-known effect. However, subsequent findings began to indicate
that the effect continued outside of the periods of meditation.
" When we re-calibrated their pain thresholds after the
training had started and we found that they felt less pain, compared
to the control subjects," Zeidan noted. "This was totally
surprising because a change in general sensitivity was not part
of our hypothesis at all.
"We were so surprised after the first experiment that we
did two more. We thought that no one was going to listen to us
because no one had done this before
and we got a robust
finding across the three experiments."
Zeidan stresses that the effect the researchers measured in the
meditation subjects was a lessening of pain but not a lessening
of sensation. The calibration results showed little change in
the meditation subjects' sensitivity to the sensation of electricity,
but a significant change in what level of shock was perceived
to be painful.
"The short course of meditation was very effective on pain
perception," Zeidan said. "We got a very high effect
size for the periods when they were meditating.
"In fact, it was kind of freaky for me. I was ramping at
400-500 milliamps and their arms would be jolting back and forth
because the current was stimulating a motor nerve. Yet they would
still be asking, 'A 2?' ('2' being the level of electrical shock
that designates low pain) It was really surprising," he said.
Zeidan suspects that the mindfulness training lessens the awareness
of and sensitivity to pain because it trains subjects' brains
to pay attention to sensations at the present moment rather than
anticipating future pain or dwelling on the emotions caused by
pain, and thus reduces anxiety.
"The mindfulness training taught them that distractions,
feelings, emotions are momentary, don't require a label or judgment
because the moment is already over," Zeidan noted. "With
the meditation training they would acknowledge the pain, they
realize what it is, but just let it go. They learn to bring their
attention back to the present."
Though the results are in line with past findings regarding mindfulness
practitioners, Zeidan says that the findings are important because
they show that meditation is much easier to use for pain management
than it was previously believed to be because a very short, simple
course of training is all that is required in order to achieve
a significant effect. Even self-administered training might be
effective, according to Zeidan.
"What's neat here is that this is the briefest known way
to promote a meditation state and yet it has an effect in pain
management. People who want to make use of the technique might
not need a meditation facilitator they might be able to
get the necessary training off the internet, " Zeidan said.
"All you have to do is use your mind, change the way you
look at the perception of pain and that, ultimately, might help
alleviate the feeling of that pain."
Reference
Source 125
November 10, 2009
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