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Neglecting your eyes can influence dementia Elderly people with untreated poor vision are significantly more likely to suffer from Alzheimer’s disease and other forms of dementia than their clear-sighted counterparts, according to a study published...

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Blueberry juice improves memory A new study shows that drinking a daily dose of wild blueberry juice improved the memory of older adults with age-related memory problems. It's the first study to show this potential benefit of blueberries...

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Pump up your hippo for a better functioning brain The role of some brain structures are better understood than others. For example, the hippocampus, a small S-shaped structure that lies just inside your temples, plays a specific role in memory for facts,...

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Australian research shows key to healthy brain aging. Use it or lose it! Pilot study by Alzheimers Australia (WA) finds regular brain exercises are the key to healthy ageing Just two hours of brain exercises a week can markedly improve a person’s...

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Higher leptin levels, lower Alzheimer's incidence Persons with higher levels of leptin, a protein hormone produced by fat cells and involved in the regulation of appetite, may have an associated reduced incidence of Alzheimer disease and dementia, according...

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Improve your willpower

Posted by Jim Hanekamp | Posted in Brain, Meditation | Posted on 28-10-2009

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By Daniel Goleman & Greater Good Magazine

Those of us who struggle to resist junk foods or otherwise suffer a lack of willpower will be heartened by some good news from neuroscience. But there’s some bad news, too.

First, the bad news. A slew of studies suggest that we each have a fixed neural reservoir of willpower, and that if we use it on one thing, we have less for others. Tasks that demand some self-control make it harder for us to do the next thing that takes willpower.

In a typical experiment on this effect, one group of people was made to watch a video of a boring scene; another was not. Then both groups had to circle every “e” in a long passage of writing. The result? The people who had to first sit through the boring video gave up faster. The same loss of persistence has been found when people try to resist tempting foods, suppress emotional reactions, or even make the effort to try to impress someone.

This all suggests we have a fixed willpower budget, one we should be careful in spending. Some neuroscientists suspect that self-control consumes blood sugar, which takes a while to build up again; thus, the depletion effect.

But the good news is that we can grow our willpower; like a muscle, the more we use it, the more it gradually increases over time. But doing this takes, of all things, willpower.

As the muscle of will grows, the larger our reservoir of self-discipline becomes. So people who are able to stick to a diet or an exercise program for a few months, or who complete money-management classes, also reduce their impulse-buying, junk food consumption, and alcohol intake. They watch less TV and do more housework. And this ability to delay grasping at gratification, much data shows, predicts greater career success.

This round-up of thinking on willpower comes courtesy of Sandra Aamodt and Sam Wang, whose recent book, Welcome to Your Brain, details the evidence about willpower. But, writing in The New York Times, the duo poses a puzzle: While it’s clear that willpower has limits, what brain mechanisms let us build it up?

That question brought to mind a recent conversation I had with Richard Davidson, the director of the Laboratory for Affective Neuroscience at the University of Wisconsin. Davidson’s research these days focuses on neuroplasticity—how our experience shapes the brain throughout life. One surprise: though most of us learned that we have a fixed number of brain cells when we are born, and that we lose them steadily until we die, brain science now tells us the brain makes about 10,000 new cells every day, and that they migrate to where they are needed. Once there, each cell makes around 10,000 connections to other brain cells over the successive four months.

Davidson’s research finds that the left prefrontal cortex—the brain’s executive center located just behind the forehead—is a key site for helping us build willpower. Our plans and goals hatch here, and impulses are executed via this zone. There is a neural circuit in the prefrontal cortex that inhibits emotional impulse, and can be strengthened by a range of methods.

One of these methods, Davidson explained to me, is mindfulness training, a secular form of meditation widely used in settings from businesses to outpatient clinics. This is confirmed by a great deal of research. My own doctoral dissertation found (as have many others since) that the practice of meditation seems to speed the rate of physiological recovery from a stressful event. A string of studies have now established that more experienced meditators recover more quickly from stress-induced physiological arousal than do novices.

Research shows that other kinds of training can have similar effects, and the more time we devote to any of these trainings, the greater the result in the targeted areas of the brain. Brain imaging studies show that the spatial areas of London taxi drivers’ brains become enhanced during the first six months they spend driving around that city’s winding streets; likewise, the area for thumb movement in the motor cortex becomes more robust in violinists as they continue to practice over many months. A seminal 2004 article in the Proceedings of the National Academy of Science found that, compared to novices, highly adept meditators generated far more high-amplitude gamma wave activity—which reflects finely focused attention—in areas of the prefrontal cortex while meditating.

And so it makes perfect sense that we can build our willpower over time if we are committed to doing so, a process that changes our brains right down to the cellular level. Simply being consistently self-disciplined seems to help—going to the gym every day for months, or completing projects you begin—and so does mindfulness mediation. There are ways, it seems, to make it easier to “just say no” when we need to.

See the original article here.

We need to use our willpower to keep our body fit through exercising and eating right and our mind fit by meditating and exercising it using tools like Myfitbrain.

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Six Ways to Boost Brainpower

Posted by Jim Hanekamp | Posted in Aging, Brain, Brain games, Cognitive games, Meditation, Memory, Mental exercise, Physical exercise | Posted on 01-07-2009

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Scientists are finding that the adult human brain is far more malleable than they once thought. Your behavior and environment can cause substantial rewiring of your brain or a reorganization of its functions.

Studies have shown that exercise can improve the brain’s executive skills, which include planning, organizing and multitasking. What you eat can also influence how effectively your brain operates.

Activities such as listening to music, playing video games and meditating may boost cognitive performance as well.
Interested in learning more?

Amputees sometimes experience phantom limb sensations, feeling pain, itching or other impulses coming from limbs that no longer exist. Neuroscientist Vilayanur S. Ramachandran worked with patients who had so-called phantom limbs, including Tom, a man who had lost one of his arms.

Ramachandran discovered that if he stroked Tom’s face, Tom felt like his missing fingers were also being touched. Each part of the body is represented by a different region of the somatosensory cortex, and, as it happens, the region for the hand is adjacent to the region for the face. The neuroscientist deduced that a remarkable change had taken place in Tom’s somatosensory cortex.

Ramachandran concluded that because Tom’s cortex was no longer getting input from his missing hand, the region processing sensation from his face had slowly taken over the hand’s territory. So touching Tom’s face produced sensation in his nonexistent fingers.

Continue reading this article at: Six Ways

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The Examined Life: Change Your Brain Change Your Life

Posted by Jim Hanekamp | Posted in Aging, Brain, Brain games, Cognitive games, Memory, Mental exercise | Posted on 26-06-2009

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Socrates believed that “the unexamined life was not worth living.”  It disturbed him that people were too busy “living” to take the time “to wonder why they were living…  [or even] who was doing the living.”  He believed that “if we are to become human in the fullest sense, achieving our distinctive potential and genuine happiness then we must live an examined life” (Chaffee 61).  His challenge to people was to have them reflect on their lives and have them “examine who they are, and who they want to become” (Chaffee 50).  But what if we examine our lives and don’t like what we find; can we change it?  Some would say no, “you can’t teach an old dog new tricks”; but neuroscience would argue that this clichéd statement was mistaken.  In fact, as Dr. Gary Marcus explains in his book The Birth of the Mind, nature bestows upon us at birth a complex brain—one that is flexible, mutable, and wired for learning.  This flexibility is known as neuroplasticity (12).  The research will show that this mutability or ability to change stays with us our entire lives, and this is why we humans can learn new tricks well into old age.

However, there are opposing views in science, known as biological and environmental determinism, that believe people are slaves to their brains wiring and incapable of change.
Want to read more? Go ahead by clicking on the link: The Examined Life

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Meditation Found to Increase Brain Size

Posted by Jim Hanekamp | Posted in Hippocampus, Meditation, Mental exercise, Physical exercise | Posted on 26-05-2009

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We’ve heard that meditation can help lower your blood pressure and help you relax. But can it make your brain bigger? That’s what scientists at UCLA wanted to find out.

Meditation is a deeply personal practice. For some people meditation brings them focus, relaxation and lowers stress. But it may also be making their brains bigger — yes, bigger.

Dr. Eileen Luders wanted to explore the connection between focused thinking – and brain size.

“If you imagine the brain like a muscle then meditation for the brain is like physical exercise for the body. Meditation is a mental workout,” said Dr. Luders, UCLA.
Read the rest of this article at: Meditation and Brain Size

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