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Meditation for stress control

Dealing with stress the wrong way

When we are placed in situations of pressure or stress, our body responds in very negative ways. Such outcomes are mental fatigue, anxiety attacks, anger, frustration and all these can lead to other problems of the physical body. Many people tend to deal with such ‘problems’ with listen to music, resorting to drugs or alcohol, physical exercise and many others. But the solution is not to turn away from it but be able to control, reduce and on a higher level not be affected by it at all.

Now a team of researchers from China and the University of Oregon have developed an approach for neuroscientists to study how meditation might provide improvements in a person’s attention and response to stress. The study, done in China, randomly assigned college undergraduate students to 40-Meditation for stress controlperson experimental or control groups. The experimental group received five days of meditation training using a technique called the integrative body-mind training (IBMT). The control group got five days of relaxation training. Before and after training both groups took tests involving attention and reaction to mental stress.
The experimental group showed greater improvement than the control in an attention test designed to measure the subjects’ abilities to resolve conflict among stimuli. Stress was induced by mental arithmetic. Both groups initially showed elevated release of the stress hormone cortisol following the math task, but after training the experimental group showed less cortisol release, indicating a greater improvement stress regulation. The experimental group also showed lower levels of anxiety, depression, anger and fatigue than was the case in the control group.
“This study improves the prospect for examining brain mechanisms involved in the changes in attention and self-regulation that occur following meditation training,” said co-author Michael I. Posner, professor emeritus of psychology at the University of Oregon. “The study took only five days, so it was possible to randomly assign the subjects and do a thorough before-and-after analysis of the training effects.”

Integrative body-mind training

The IBMT approach was developed in the 1990s. Its effects have been studied in China since 1995. The technique avoids struggles to control thought, relying instead on a state of restful alertness, allowing for a high degree of body-mind awareness while receiving instructions from a coach, who provides breath-adjustment guidance and mental imagery while soothing music plays in the background. Thought control is achieved gradually through posture, relaxation, body-mind harmony and balanced breathing. The authors noted in the study that IBMT may be effective during short-term application because of its integrative use of these components.

IBMT has been found to improve emotional and cognitive performance, as well as social behavior, in people, said lead author Yi-Yuan Tang, a professor in the Institute of Neuroinformatics and Laboratory for Body and Mind at Dalian University of Technology in Dalian, China. Tang currently is a visiting scholar at the University of Oregon, where he is working with Posner on a new and larger study to be conducted in the United States.

The current study did not include direct measures of brain changes, although previous studies have suggested alterations have occurred in brain networks. Posner said the planned studies in the United States will include functional magnetic resonance imaging to examine any brain network changes induced by training.
In summary, the 11-member team wrote: “IBMT is an easy, effective way for improvement in self-regulation in cognition, emotion and social behavior. Our study is consistent with the idea that attention, affective processes and the quality of moment-to-moment awareness are flexible skills that can be trained.”
At this point, the findings suggest a measurable benefit that people could achieve through body-mind meditation, especially involving an effective training regimen, but larger studies are needed to fully test the findings of this small, short-term study, Posner said.

Filed Under: Kung Fu, Mind Tagged With: meditation, mind training, stress

Brainwave activity during meditation

Brainwave activity

 

Meditation research explores how the brain works when we refrain from concentration, rumination and intentional thinking. Electrical brain waves suggest that mental activity during meditation is wakeful and relaxed.
“Given the popularity and effectiveness of meditation as a means of alleviating stress and maintaining good health, there is a pressing need for a rigorous investigation of how it affects brain function,” says Professor Jim Lagopoulos of Sydney University, Australia. Lagopoulos is the principal investigator of a joint study between his university and researchers from the Norwegian University of Science and Technology (NTNU) on changes in electrical brain activity during nondirective meditation.

Continuous brainwaves

Whether we are mentally active, resting or asleep, the brain always has some level of electrical activity. The study monitored the frequency and location of electrical brain waves through the use of EEG (electroencephalography). EEG electrodes were placed in standard locations of the scalp using a custom-made hat
Participants were experienced practitioners of Acem Meditation, a nondirective method developed in Norway. They were asked to rest, eyes closed, for 20 minutes, and to meditate for another 20 minutes, in random order. The abundance and location of slow to fast electrical brain waves (delta, theta, alpha, beta) provide a good indication of brain activity.

Calm mind awareness with theta waves

During meditation, theta waves were most abundant in the frontal and middle parts of the brain.
“These types of waves likely originate from a relaxed attention that monitors our inner experiences. Here lies a significant difference between meditation and relaxing without any specific technique,” emphasizes Lagopoulos.
“Previous studies have shown that theta waves indicate deep relaxation and occur more frequently in highly experienced meditation practitioners. The source is probably frontal parts of the brain, which are associated with monitoring of other mental processes.”
“When we measure mental calm, these regions signal to lower parts of the brain, inducing the physical relaxation response that occurs during meditation.”

Quiet experiences with alpha waves

Alpha waves were more abundant in the posterior parts of the brain during meditation than during simple relaxation. They are characteristic of wakeful rest.
“This wave type has been used as a universal sign of relaxation during meditation and other types of rest,” comments Professor yvind Ellingsen from NTNU. “The amount of alpha waves increases when the brain relaxes from intentional, goal-oriented tasks. This is a sign of deep relaxation, but it does not mean that the mind is void.”
Neuro-imaging studies by Malia F. Mason and co-workers at Dartmouth College NH suggest that the normal resting state of the brain is a silent current of thoughts, images and memories that is not induced by sensory input or intentional reasoning, but emerges spontaneously “from within.”
“Spontaneous wandering of the mind is something you become more aware of and familiar with when you meditate,” continues Ellingsen, who is an experienced practitioner. “This default activity of the brain is often underestimated. It probably represents a kind of mental processing that connects various experiences and emotional residues, puts them into perspective and lays them to rest.”

Meditation distinct from sleep

Delta waves are characteristic of sleep. There was little delta during the relaxing and meditative tasks, confirming that nondirective meditation is different from sleep.
Beta waves occur when the brain is working on goal-oriented tasks, such as planning a date or reflecting actively over a particular issue. EEG showed few beta waves during meditation and resting.
“These findings indicate that you step away from problem solving both when relaxing and during meditation,” says Ellingsen.

Nondirective versus concentration

Several studies indicate better relaxation and stress management by meditation techniques where you refrain from trying to control the content of the mind.
“These methods are often described as nondirective, because practitioners do not actively pursue a particular experience or state of mind. They cultivate the ability to tolerate the spontaneous wandering of the mind without getting too much involved. Instead of concentrating on getting away from stressful thought and emotions, you simple let them pass in an effortless way.”

Filed Under: Mind Tagged With: alpha waves, Brainwave, meditation, theta waves

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