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A Neuroscientist Explains How Meditation Changes Your Brain

A Neuroscientist Explains How Meditation Changes Your Brain

on 16 April, 2014 at 13:44

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Do you struggle, like me, with monkey-mind? Is your brain also a little unsettled, restless, capricious, whimsical, fanciful, inconstant, confused, indecisive, or uncontrollable? That’s the definition of “monkey mind” I’ve been given!

If you need more motivation to take up this transformative practice, neuroscience research has shown that meditation and mindfulness training can cause neuroplastic changes to the gray matter of your brain.

A group of Harvard neuroscientists interested in mindfulness meditation have reported that brain structures change after only eight weeks of meditation practice.

Sara Lazar, Ph.D., the study’s senior author, said in a press release,

“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.”

To test their idea the neuroscientists enrolled 16 people in an eight-week mindfulness-based stress reduction course. The course promised to improve participants’ mindfulness and well-being, and reduce their levels of stress.

Everyone received audio recordings containing 45-minute guided mindfulness exercises (body scan, yoga, and sitting meditation) that they were instructed to practice daily at home. And to facilitate the integration of mindfulness into daily life, they were also taught to practice mindfulness informally in everyday activities such as eating, walking, washing the dishes, taking a shower, and so on. On average, the meditation group participants spent an average of 27 minutes a day practicing some form of mindfulness.

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Magnetic resonance images (MRI scans) of everyone’s brains were taken before and after they completed the meditation training, and a control group of people who didn’t do any mindfulness training also had their brains scanned.After completing the mindfulness course, all participants reported significant improvement in measures of mindfulness, such as “acting with awareness” and “non-judging.”

What was startling was that the MRI scans showed that mindfulness groups increased gray matter concentration within the left hippocampus, the posterior cingulate cortex, the temporo-parietal junction, and the cerebellum. Brain regions involved in learning and memory, emotion regulation, sense of self, and perspective taking!

Britta Hölzel, the lead author on the paper says,

“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.”

Sarah Lazar also noted,

“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.”

Featured Image Credits: http://www.squidoo.com/contemplative-neuroscience

Credits: **This was originally featured on MindBodyGreen

Sensory Deprivation: Meditation Isolation Chambers

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An isolation tank is a lightless, soundproof tank inside which subjects float in salt water at skin temperature. They were first used by John C. Lilly in 1954 to test the effects of sensory deprivation. Such tanks are now also used for meditation and relaxation and in alternative medicine. The isolation tank was originally called the sensory deprivation tank. Other names for the isolation tank include flotation tankJohn C. Lilly tankREST tanksensory attenuation tank, and think tank.

Ever thought of what it would be like to have your sensory input completely cut off while in meditation? According to many people who have tried sensory deprivation they say it is a great form of therapy.. Imagine the “distractions” being completely cut off, leaving only pure unchecked consciousness. This is the essence of what sensory deprivation is.

The History of the Isolation Chamber

“John C. Lilly, a medical practitioner and neuro-psychiatrist, developed the flotation tank in 1954. During his training in psychoanalysis at the US National Institute of Mental Health (NIMH), Lilly commenced experiments with sensory deprivation. In neurophysiology, there had been an open question as to what keeps the brain going and the origin of its energy sources. One hypothesis was that the energy sources are biological and internal and do not depend upon the outside environment. It was argued that if all stimuli are cut off to the brain then the brain would go to sleep. Lilly decided to test this hypothesis and, with this in mind, created an environment which totally isolated an individual from external stimulation. From here, he studied the origin of consciousness and its relation to the brain.

Peter Suedfeld and Roderick Borrie of the University of British Columbia began experimenting on the therapeutic benefits of flotation tank usage in the late 1970s. They named their technique “Restricted Environmental Stimulation Therapy” (REST). -Wikipedia

Why An Isolation Chamber?

“A sensory deprivation tank can help activate your mental powers and even open a gateway to another universe. But what can floating in a dark warm tank do for you in real life? And why would people even want to do such a thing?” -said I09.com.

A sensory deprivation tank is a temperature regulated, saltwater (Epsom) filled tank that blocks all light, sound, and creates the illusion of being “weightless” like in space. The weightless feeling comes from the salt and the temperature regulated water. The water is warmed to “skin temperature” effectively making it feel like there is nothing touching you, but you’re floating. Imagine what it would be like to put your brain in a box with nothing else stimulating it besides the vastness of your consciousness. People have reported having incredible experiences like OBE’s and traveling the cosmos, to reaching a state of peace that is so therapeutic and positive that people swear by it and now regularly have sessions in the tanks.

By comparison, characterizations of sensory deprivation like this one by comedian Joe Rogan begin to sound downright grounded — and Rogan’s descriptions of hallucinations, heightened levels of introspection, and the sensation that the mind has left the body are actually among the most commonly reported experiences among tank users. Even renowned physicist Richard Feynman described having hallucinations and out-of-body experiences while using sensory deprivation chambers. -said I09.com

If you are interested in trying Sensory Deprivation, there is good news, there are centers in nearly every city at an affordable price. You can find a center near you here: http://floatation.biz/floatfinder/

Now that we’ve gone through the history and uses of the isolation chamber, I recommend watching these short videos to get a better perspective on some of the first hand experiences people have had with sensory deprivation.

Brain Waves And The Deeper States Of Consciousness

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Every part of your body vibrates to its own rhythm. Your brain has a unique set of brain waves. In neuroscience, there are five distinct brain wave frequencies, namely Beta, Alpha, Theta, Delta and the lesser known Gamma. Learning mind control at the deeper states of consciousness opens you up to the world of your subconscious mind where you can create your reality at will and with exact precision.

Each frequency, measured in cycles per second (Hz), has its own set of characteristics representing a specific level of brain activity and hence a unique state of consciousness.

Beta (12-30Hz): Beta brain waves are associated with normal waking consciousness and a heightened state of alertness, logic and critical reasoning. As you go about your daily activities you are at Beta. Although important for effectively functioning in everyday life, higher Beta levels translate into stress, anxiety and restlessness. With the majority of adults primarily operating at Beta during their waking hours it is little wonder that stress is today’s most common health problem. The voice of Beta is the little nagging chatterbox of your inner critic, which becomes louder and more relentless the higher you go in the range.

Alpha (7.5-12Hz): Alpha brain waves are present in deep relaxation with the eyes usually closed and while day-dreaming. The relaxed detached awareness achieved during light meditation is characteristic of Alpha and is optimal for programming your mind for success. Alpha heightens your imagination, visualization, memory, learning and concentration. It lies at the base of your conscious awareness and is the gateway to your subconscious mind. The renowned Silva Method by Jose Silva is premised on the power of Alpha. The voice of Alpha is your intuition, which becomes clearer and more profound the closer you get to 7.5Hz.

The following chart shows the EEG (Electroencephalography) graphs of the four major levels of brain activity.

The Alpha-Theta border, from 7 to 8Hz, is the optimal range for visualization, mind programming and using the creative power of your mind. It is the mental state at which you consciously create your reality. At this frequency of mind control you are conscious of your surroundings but your body is in deep relaxation. To learn how to access this level of mind at will you must first learn how to relax.

Gamma (30-100Hz): The most recently discovered range is Gamma which is the fastest in frequency at above 40Hz (some researchers do not distinguish Beta from Gamma waves). Although little is known about this state of mind, initial research shows Gamma waves are associated with bursts of insight and high-level information processing.

In a nutshell, there are five major brain wave ranges: Beta (12-30Hz) is present in normal waking consciousness and is heightened during times of stress; the Alpha brain wave (7.5-14Hz) in deep relaxation; Theta (4-7.5Hz) in meditation and light sleep; and the slowest, Delta (0.5-4Hz) in deep dreamless sleep and transcendental meditation. The less recognised Gamma is fastest (above 40Hz) and associated with sudden insight. The optimal level for visualization is the Alpha-Theta Border at 7-8Hz. It is the gateway to your subconscious mind.

Credits: Tania Kotsos of www.mind-your-reality.com

Image: Credits

10 easy things to make you happy

1. Exercise more – 7 minutes might be enough

 

You might have seen some talk recently about the scientific 7 minute workout mentioned in The New York Times. So if you thought exercise was something you didn’t have time for, maybe you can fit it in after all.

 

Exercise has such a profound effect on our happiness and well-being that it’s actually been proven to be an effective strategy for overcoming depression. In a study cited in Shawn Achor’s book, The Happiness Advantage, three groups of patients treated their depression with either medication, exercise, or a combination of the two. The results of this study really surprised me. Although all three groups experienced similar improvements in their happiness levels to begin with, the follow up assessments proved to be radically different:

 

The groups were then tested six months later to assess their relapse rate. Of those who had taken the medication alone, 38 percent had slipped back into depression. Those in the combination group were doing only slightly better, with a 31 percent relapse rate. The biggest shock, though, came from the exercise group: Their relapse rate was only 9 percent!

 

You don’t have to be depressed to gain benefit from exercise, though. It can help you to relax, increase your brain power and even improve your body image, even if you don’t lose any weight.

 

A study in the Journal of Health Psychology found that people who exercised felt better about their bodies, even when they saw no physical changes:

 

Body weight, shape and body image were assessed in 16 males and 18 females before and after both 6 × 40 mins exercise and 6 × 40 mins reading. Over both conditions, body weight and shape did not change. Various aspects of body image, however, improved after exercise compared to before.

 

We’ve explored exercise in depth before, and looked at what it does to our brains, such as releasing proteins and endorphins that make us feel happier, as you can see in the image below.

 

 

2. Sleep more – you’ll be less sensitive to negative emotions

 

We know that sleep helps our bodies to recover from the day and repair themselves, and that it helps us focus and be more productive. It turns out, it’s also important for our happiness.

 

In NutureShock, Po Bronson and Ashley Merryman explain how sleep affects our positivity:

 

Negative stimuli get processed by the amygdala; positive or neutral memories gets processed by the hippocampus. Sleep deprivation hits the hippocampus harder than the amygdala. The result is that sleep-deprived people fail to recall pleasant memories, yet recall gloomy memories just fine.

 

In one experiment by Walker, sleep-deprived college students tried to memorize a list of words. They could remember 81% of the words with a negative connotation, like “cancer.” But they could remember only 31% of the words with a positive or neutral connotation, like “sunshine” or “basket.”

 

The BPS Research Digest explores another study that proves sleep affects our sensitivity to negative emotions. Using a facial recognition task over the course of a day, the researchers studied how sensitive participants were to positive and negative emotions. Those who worked through the afternoon without taking a nap became more sensitive late in the day to negative emotions like fear and anger.

 

Using a face recognition task, here we demonstrate an amplified reactivity to anger and fear emotions across the day, without sleep. However, an intervening nap blocked and even reversed this negative emotional reactivity to anger and fear while conversely enhancing ratings of positive (happy) expressions.

 

Of course, how well (and how long) you sleep will probably affect how you feel when you wake up, which can make a difference to your whole day. Especially this graph showing how your brain activity decreases is a great insight about how important enough sleep is for productivity and happiness:

 

 

 

Another study tested how employees’ moods when they started work in the morning affected their work day.

 

Researchers found that employees’ moods when they clocked in tended to affect how they felt the rest of the day. Early mood was linked to their perceptions of customers and to how they reacted to customers’ moods.

 

And most importantly to managers, employee mood had a clear impact on performance, including both how much work employees did and how well they did it.

 

Sleep is another topic we’ve looked into before, exploring how much sleep we really need to be productive.

3. Move closer to work – a short commute is worth more than a big house

 

Our commute to the office can have a surprisingly powerful impact on our happiness. The fact that we tend to do this twice a day, five days a week, makes it unsurprising that its effect would build up over time and make us less and less happy.

 

According to The Art of Manliness, having a long commute is something we often fail to realize will affect us so dramatically:

 

… while many voluntary conditions don’t affect our happiness in the long term because we acclimate to them, people never get accustomed to their daily slog to work because sometimes the traffic is awful and sometimes it’s not. Or as Harvard psychologist Daniel Gilbert put it, “Driving in traffic is a different kind of hell every day.”

 

We tend to try to compensate for this by having a bigger house or a better job, but these compensations just don’t work:

 

Two Swiss economists who studied the effect of commuting on happiness found that such factors could not make up for the misery created by a long commute.

4. Spend time with friends and family – don’t regret it on your deathbed

 

Staying in touch with friends and family is one of the top five regrets of the dying. If you want more evidence that it’s beneficial for you, I’ve found some research that proves it can make you happier right now.

 

Social time is highly valuable when it comes to improving our happiness, even for introverts. Several studies have found that time spent with friends and family makes a big difference to how happy we feel, generally.

 

I love the way Harvard happiness expert Daniel Gilbert explains it:

 

We are happy when we have family, we are happy when we have friends and almost all the other things we think make us happy are actually just ways of getting more family and friends.

 

George Vaillant is the director of a 72-year study of the lives of 268 men.

 

In an interview in the March 2008 newsletter to the Grant Study subjects, Vaillant was asked, “What have you learned from the Grant Study men?” Vaillant’s response: “That the only thing that really matters in life are your relationships to other people.”

 

He shared insights of the study with Joshua Wolf Shenk at The Atlantic on how the men’s social connections made a difference to their overall happiness:

 

The men’s relationships at age 47, he found, predicted late-life adjustment better than any other variable, except defenses. Good sibling relationships seem especially powerful: 93 percent of the men who were thriving at age 65 had been close to a brother or sister when younger.

 

In fact, a study published in the Journal of Socio-Economics states than your relationships are worth more than $100,000:

 

Using the British Household Panel Survey, I find that an increase in the level of social involvements is worth up to an extra £85,000 a year in terms of life satisfaction. Actual changes in income, on the other hand, buy very little happiness.

 

I think that last line is especially fascinating: Actual changes in income, on the other hand, buy very little happiness. So we could increase our annual income by hundreds of thousands of dollars and still not be as happy as if we increased the strength of our social relationships.

 

The Terman study, which is covered in The Longevity Project, found that relationships and how we help others were important factors in living long, happy lives:

 

We figured that if a Terman participant sincerely felt that he or she had friends and relatives to count on when having a hard time then that person would be healthier. Those who felt very loved and cared for, we predicted, would live the longest.

 

Surprise: our prediction was wrong… Beyond social network size, the clearest benefit of social relationships came from helping others. Those who helped their friends and neighbors, advising and caring for others, tended to live to old age.

5. Go outside – happiness is maximized at 13.9°C

 

In The Happiness Advantage, Shawn Achor recommends spending time in the fresh air to improve your happiness:

 

Making time to go outside on a nice day also delivers a huge advantage; one study found that spending 20 minutes outside in good weather not only boosted positive mood, but broadened thinking and improved working memory…

 

This is pretty good news for those of us who are worried about fitting new habits into our already-busy schedules. Twenty minutes is a short enough time to spend outside that you could fit it into your commute or even your lunch break.

 

A UK study from the University of Sussex also found that being outdoors made people happier:

 

Being outdoors, near the sea, on a warm, sunny weekend afternoon is the perfect spot for most. In fact, participants were found to be substantially happier outdoors in all natural environments than they were in urban environments.

 

The American Meteorological Society published research in 2011 that found current temperature has a bigger effect on our happiness than variables like wind speed and humidity, or even the average temperature over the course of a day. It also found that happiness is maximized at 13.9°C, so keep an eye on the weather forecast before heading outside for your 20 minutes of fresh air.

6. Help others – 100 hours a year is the magical number

 

One of the most counterintuitive pieces of advice I found is that to make yourself feel happier, you should help others. In fact, 100 hours per year (or two hours per week) is the optimal time we should dedicate to helping others in order to enrich our lives.

 

If we go back to Shawn Achor’s book again, he says this about helping others:

 

…when researchers interviewed more than 150 people about their recent purchases, they found that money spent on activities—such as concerts and group dinners out—brought far more pleasure than material purchases like shoes, televisions, or expensive watches. Spending money on other people, called “prosocial spending,” also boosts happiness.

 

The Journal of Happiness Studies published a study that explored this very topic:

 

Participants recalled a previous purchase made for either themselves or someone else and then reported their happiness. Afterward, participants chose whether to spend a monetary windfall on themselves or someone else. Participants assigned to recall a purchase made for someone else reported feeling significantly happier immediately after this recollection; most importantly, the happier participants felt, the more likely they were to choose to spend a windfall on someone else in the near future.

 

So spending money on other people makes us happier than buying stuff for ourselves. What about spending our time on other people? A study of volunteering in Germany explored how volunteers were affected when their opportunities to help others were taken away:

 

 Shortly after the fall of the Berlin Wall but before the German reunion, the first wave of data of the GSOEP was collected in East Germany. Volunteering was still widespread. Due to the shock of the reunion, a large portion of the infrastructure of volunteering (e.g. sports clubs associated with firms) collapsed and people randomly lost their opportunities for volunteering. Based on a comparison of the change in subjective well-being of these people and of people from the control group who had no change in their volunteer status, the hypothesis is supported that volunteering is rewarding in terms of higher life satisfaction.

 

In his book Flourish: A Visionary New Understanding of Happiness and Well-being, University of Pennsylvania professor Martin Seligman explains that helping others can improve our own lives:

 

…we scientists have found that doing a kindness produces the single most reliable momentary increase in well-being of any exercise we have tested.

7. Practice smiling – it can alleviate pain

 

Smiling itself can make us feel better, but it’s more effective when we back it up with positive thoughts, according to this study:

 

A new study led by a Michigan State University business scholar suggests customer-service workers who fake smile throughout the day worsen their mood and withdraw from work, affecting productivity. But workers who smile as a result of cultivating positive thoughts – such as a tropical vacation or a child’s recital – improve their mood and withdraw less.

 

Of course it’s important to practice “real smiles” where you use your eye sockets. It’s very easy to spot the difference:

 

 

 

According to PsyBlog, smiling can improve our attention and help us perform better on cognitive tasks:

 

Smiling makes us feel good which also increases our attentional flexibility and our ability to think holistically. When this idea was tested by Johnson et al. (2010), the results showed that participants who smiled performed better on attentional tasks which required seeing the whole forest rather than just the trees.

 

A smile is also a good way to alleviate some of the pain we feel in troubling circumstances:

 

Smiling is one way to reduce the distress caused by an upsetting situation. Psychologists call this the facial feedback hypothesis. Even forcing a smile when we don’t feel like it is enough to lift our mood slightly (this is one example of embodied cognition).

 

One of our previous posts goes into even more detail about the science of smiling.

8. Plan a trip – but don’t take one

 

As opposed to actually taking a holiday, it seems that planning a vacation or just a break from work can improve our happiness. A study published in the journal, Applied Research in Quality of Lifeshowed that the highest spike in happiness came during the planning stage of a vacation as employees enjoyed the sense of anticipation:

 

In the study, the effect of vacation anticipation boosted happiness for eight weeks.

 

After the vacation, happiness quickly dropped back to baseline levels for most people.

 

Shawn Achor has some info for us on this point, as well:

 

One study found that people who just thought about watching their favorite movie actually raised their endorphin levels by 27 percent.

 

If you can’t take the time for a vacation right now, or even a night out with friends, put something on the calendar—even if it’s a month or a year down the road. Then whenever you need a boost of happiness, remind yourself about it.

9. Meditate – rewire your brain for happiness

 

Meditation is often touted as an important habit for improving focus, clarity and attention span, as well as helping to keep you calm. It turns out it’s also useful for improving your happiness:

 

In one study, a research team from Massachusetts General Hospital looked at the brain scans of 16 people before and after they participated in an eight-week course in mindfulness meditation. The study, published in the January issue of Psychiatry Research: Neuroimaging, concluded that after completing the course, parts of the participants’ brains associated with compassion and self-awareness grew, and parts associated with stress shrank.

 

Meditation literally clears your mind and calms you down, it’s been often proven to be the single most effective way to live a happier live. I believe that this graphic explains it the best:

 

 

 

According to Shawn Achor, meditation can actually make you happier long-term:

 

Studies show that in the minutes right after meditating, we experience feelings of calm and contentment, as well as heightened awareness and empathy. And, research even shows that regular meditation can permanently rewire the brain to raise levels of happiness.

 

The fact that we can actually alter our brain structure through mediation is most surprising to me and somewhat reassuring that however we feel and think today isn’t permanent.

10. Practice gratitude – increase both happiness and life satisfaction

 

This is a seemingly simple strategy, but I’ve personally found it to make a huge difference to my outlook. There are lots of ways to practice gratitude, from keeping a journal of things you’re grateful for, sharing three good things that happen each day with a friend or your partner, and going out of your way to show gratitude when others help you.

 

In an experiment where some participants took note of things they were grateful for each day, their moods were improved just from this simple practice:

 

The gratitude-outlook groups exhibited heightened well-being across several, though not all, of the outcome measures across the 3 studies, relative to the comparison groups. The effect on positive affect appeared to be the most robust finding. Results suggest that a conscious focus on blessings may have emotional and interpersonal benefits.

 

The Journal of Happiness studies published a study that used letters of gratitude to test how being grateful can affect our levels of happiness:

 

Participants included 219 men and women who wrote three letters of gratitude over a 3 week period.

 

Results indicated that writing letters of gratitude increased participants’ happiness and life satisfaction, while decreasing depressive symptoms.

Quick last fact: Getting older will make yourself happier

 

As a final point, it’s interesting to note that as we get older, particularly past middle age, we tend togrow happier naturally. There’s still some debate over why this happens, but scientists have got a few ideas:

 

Researchers, including the authors, have found that older people shown pictures of faces or situations tend to focus on and remember the happier ones more and the negative ones less.

 

Other studies have discovered that as people age, they seek out situations that will lift their moods — for instance, pruning social circles of friends or acquaintances who might bring them down. Still other work finds that older adults learn to let go of loss and disappointment over unachieved goals, and hew their goals toward greater wellbeing.

 

So if you thought being old would make you miserable, rest assured that it’s likely you’ll develop a more positive outlook than you probably have now.

 

Want to chat about this article? Leave a comment below or send me an email with your thoughts.

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