Can cognitive behavioural therapy really change our brains? (BBC)

Cognitive behavioural therapy (CBT) is a type of talking therapy that's used to treat a wide range of mental health problems, from depression and eating disorders to phobias and obsessive-compulsive disorder (OCD). It recommends looking at ourselves in a different way that might prove useful for all of us in everyday life. But what happens to our brains when we have CBT?

What is cognitive behavioural therapy?

CBT is based on the idea that problems aren't caused by situations themselves, but by how we interpret them in our thoughts. These can then affect our feelings and actions.

The way we think about a situation can affect how we feel and how we act

For example, if someone you know walks by without saying hello, what's your reaction?

You might think that they ignored you because they don't like you, which might make you feel rejected. So you might be tempted to avoid them the next time you meet. This could breed more bad feeling between you both and more "rejections", until eventually you believe that you must be unlikeable. If this happened with enough people, you could start to withdraw socially.

But how well did you interpret the situation in the first place?

 

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Common errors in thinking style

• Emotional reasoning - e.g. I feel guilty so I must be guilty
• Jumping to conclusions - e.g. if I go into work when I'm feeling low, I'll only feel worse
• All-or-nothing thinking - e.g. if I've not done it perfectly, then it's absolutely useless
• Mental filtering - e.g. noticing my failures more than my successes
• Over generalising - e.g. nothing ever goes well in my life
• Labelling - e.g. I'm a loser

CBT aims to break negative vicious cycles by identifying unhelpful ways of reacting that creep into our thinking. 

"Emotional reasoning is a very common error in people's thinking," explains Dr Jennifer Wild, Consultant Clinical Psychologist from Kings College London. "That's when you think something must be true because of how you feel."

CBT tries to replace these negative thinking styles with more useful or realistic ones.

This can be a challenge for people with mental health disorders, as their thinking styles can be well-established.

How do we break negative thinking styles?

Some psychological theories suggest that we learn these negative thinking patterns through a process called negative reinforcement. 

 

Graded exposure can help people confront their phobias

For example, if you have a fear of spiders, by avoiding them you learn that your anxiety levels can be reduced. So you're rewarded in the short term with less anxiety but this reinforces the fear.

To unlearn these patterns, people with phobias and anxiety disorders often use a CBT technique called graded exposure. By gradually confronting what frightens them and observing that nothing bad actually happens, it's possible to slowly retrain their brains to not fear it.

How does cognitive behavioural therapy work on the brain?

Primitive survival instincts like fear are processed in a part of the brain called the limbic system. This includes the amygdala, a region that processes emotion, and the hippocampus, a region involved in reliving traumatic memories.

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“Start Quote

It seems that CBT really can change your brain and rewire it.”

Dr Paul Blenkiron, Consultant Psychiatrist 

 

Brain scan studies have shown that overactivity in these two regions returns to normal after a course of CBT in people with phobias. 

What's more, studies have found that CBT can also change the prefrontal cortex, the part of the brain responsible for higher-level thinking.

So it seems that CBT might be able to make real, physical changes to both our "emotional brain" (instincts) and our "logical brain" (thoughts). 

Intriguingly, similar patterns of brain changes have been seen with CBT and with drug treatments, suggesting that psychotherapies and medications might work on the brain in parallel ways.

How effective is cognitive behavioural therapy? 

Of all the talking therapies, CBT has the most clinical evidence to show that it works. 

Studies have shown that it is at least as effective as medication for many types of depression and anxiety disorders. 

But unlike many drugs, there are few side effects with CBT. After a relatively short course, people have often described long-lasting benefits. 

"In the trials we've run with post-traumatic stress disorder [PTSD] and social anxiety disorder, we've seen that even when people stop the therapy, they continue improving because they have new tools in place and they've made behavioural and thinking style changes," Dr Wild explains.

Continue reading the main story

Find out more

• Watch David, 25, and Wayne, 24, use CBT to help with their mental health in Inside My Mind on BBC Three, 7 August 2013 at 8pm, and afterwards on iPlayer
• Find out more about mental health in the It's a Mad World season on BBC Three

CBT may not be for everyone, however. 

Since the focus is on tackling the here and now, people with more complicated roots to their mental problems which could stem from their childhood, for example, may need another type of longer-term therapy to explore this. 

CBT also relies on commitment from the individual, including "homework" between therapy sessions. It can also involve confronting fears and anxieties, and this isn't always easy to do. 

Ultimately, as with many types of treatment, some people will benefit from CBT more than others and psychologists and neuroscientists are beginning to unravel the reasons behind this. 

Fuente: http://www.bbc.co.uk/science/0/23590545

Health benefits of music (net doctor)

Music has a special power to move us and stir our emotions. Anyone who has ever wiped tears away from their eyes listening to their favourite sad song will know how powerful simple notes and chords can be. 

Now, scientific studies have shown that music really can change our mood and even help us concentrate.

We look at the effects music can have, and we ask the experts what songs are likely to help you run a race, prepare for an exam or relieve stress.

Music matters

Listening to a song can have a real effect on various parts of the brain, with studies showing that areas responsible for aspects, such as memory and vision, can 'light up' in response to music. 

'There's a very wide range of reactions in the body and mind to music, and brain imaging studies have shown that various parts of the brain may be activated by a piece of music,' says Dr Victoria Williamson, lecturer in psychology at Goldsmith's College, London.

'For example, a recent study in Canada showed that there's a real causal relationship between music and the reward system, a core part of the brain that reacts to stimuli, which are good for us – food, light, sex for example – and reinforces these behaviours meaning that we do them more.'

So what benefits can music bring?

Mood boost

Some people listen to music for a boost on a tough day, while others might use music to keep them awake during a long car journey.

Everyone reacts to music in different ways. One individual may love heavy metal for example, while another is happiest listening to Mozart. 

Whatever your preference, a 2011 Canadian study, published in Nature Neuroscience, has shown that plugging in to your favourite music could help melt away a bad mood. 

Researchers at McGill University in Montreal showed that listening to pleasurable music of any description induced 'musical chills', which triggered the release of the feel-good chemical dopamine. 

'We all know from our own individual experiences that listening to music can affect mood,' says Bridget O'Connell, head of information at the mental health charity Mind. 

'Some people listen to music for a boost on a tough day, while others might use music to keep them awake during a long car journey or to purge a negative feeling. 

'The brain is very complicated – and there are many elements involved in feelings of pleasure – but it's unsurprising that research suggests dopamine release is linked with feelings of pleasure induced by music.'

Focus

Music may even be able to help you concentrate. 

A new 'digital tonic' called Ubrain, which can be downloaded onto smartphones, claims to be able to help people focus, energise, wake up as well as relax. 

The process uses two different beats in each ear to create a third 'perceived' beat (a binaural beat), which can stimulate certain activity in the brain. 

'By helping the brain cortex to generate specific brain waves, we can induce different states of alertness, depending on what we aim to do,' explains Paris-based clinical psychologist Brigitte Forgeot. 

'If we're feeling anxious or stressed, we can encourage our cerebral cortex to produce slow alpha-frequency brain waves, while on the other end of the scale, if we help our cortex to produce faster beta waves, we will be better equipped to concentrate and focus our attention on a fairly lengthy task.'

Pick up the pace

The best choices for exercise are up-beat songs that match the tempo of your running stride.

Listening to certain music could actually help you run faster.

A study at Brunel University in West London has shown that music can help increase endurance by as much as 15 per cent, helping to lower the perception of effort during exercise, as well as increasing energy efficiency by between one and three per cent.

The best choices for exercise are up-beat songs that match the tempo of your running stride and which can have a metronomic effect on the body, enabling you to run for longer.

Better mental health

Music can be an effective and positive treatment for people dealing with mental health conditions. 

'There are two distinct ways music therapy is used: either as a means of communication and self-expression or for its inherent restorative or healing qualities,' says Bridget O'Connell.

'Someone who is very withdrawn may find that music can act as an outlet for expressing things that they're unable to put into words. It can also act as a stimulus to awaken buried memories or evoke emotional responses that may take weeks to achieve with talking therapies.'

De-stress

Nearly a third of people plugged into their music players to give them a mood boost about work.

Music can be a great pick-me-up for when you are feeling stressed.

According to 2011 figures from the mental health charity Mind, nearly a third of people plugged into their music players to give them a mood boost about work, and almost one in four said that they find listening to music on the way to the workplace helps them de-stress.

Paul Farmer, the charity's CEO, backs up the statistics by saying that the therapeutic benefits of listening to music are well-known.

Tuning in to one of your favourite songs can be incredibly soothing and help to reduce anxiety.

Patient care

Music can actually have a significant positive impact on patients with long-term illnesses, such as heart disease, cancer and respiratory conditions. 

Numerous trials have shown that music can help lower heart rate, blood pressure and help relieve pain, anxiety and improve patient quality of life. 

'Music can be incredibly useful for somebody who is in a situation where they have lost a lot of control from their external environment – say they are in hospital for a long period of time with a serious illness and less able to move around,' says Dr Williamson.

'It can give them a sense of control back, as well as creating a calm personal atmosphere and blocking out some of the disturbances around the patient.'

Which music?

While there are certain trends – fast upbeat music for exercising and slower-paced music to relax – choosing songs that have the desired effect is often linked to personal preference.

'The effect of different types of music on mood will largely depend on people's individual preference and experience,' says Bridget O'Connell. 

'If you grow up with rock music, you might not find classical music uplifting at all. On the flipside, some people can't bear rock music, so they are more likely to be wound up than uplifted.

'Music can also invoke particular memories for people, including some that could potentially make them upset. On the other hand, it could also bring them out of a severely withdrawn state or act as a form of communication in place of words.'

There are some rules of thumb though, admits Dr Williamson. 'For a general rule, if you want to relax you should choose songs with slower tempo, less key changes and more predictable structure.' 
 


Link - Read more: http://www.netdoctor.co.uk/healthy-living/wellbeing/health-benefits-of-music.htm#ixzz2sPGo7KEB
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7 Strategies to Prevent Burnout (Psychology Today)

Exactly four years ago today I stopped practicing law. I burned out during the last year of my law practice, which involved three visits to the ER, consulting numerous doctors, and experiencing near-daily panic attacks. Rebuilding my life has been one of the hardest things I’ve ever done, but the years since have been some of the most rewarding of my life.

I’ve recently been interviewed on several radio shows, and regardless of the topic, people remain interested in my story and curious to know what burnout looks like and how it can be prevented. Inspired by your support to talk about my story in more detail, I’ve created a list of seven action steps that will help you slow or prevent the process of burning out. 

Increase your self-efficacy. Self-efficacy is having the belief in your own ability to accomplish (and exercise control over) personally meaningful goals and tasks. People who have a stronger level of perceived self-efficacy experience less stress in challenging situations, and situations in turn become less stressful when people believe they can cope (Bandura, 1989). The most direct and effective way to enhance self-efficacy is through performance mastery experiences. When you accomplish a goal, your brain asks, “Hmmm, what else can I do?” Another way to build self-efficacy is to find a self-efficacy “model.” Simply observing a friend or work colleague accomplish something meaningful is contagious and increases your ability to meet challenges head on (Bandura, 1997).

Identify what you need from your work. Harvard Business Review recently published an article identifying the six virtues of a dream company, as compiled from a list of hundreds of executives. The six virtues are as follows:

1. You can be yourself

2. You’re told what’s really going on

3. Your strengths are magnified

4. The company stands for something meaningful

5. Your daily work is rewarding

6. Stupid rules don’t exist

How does your company rate? While few companies meet all of these criteria, use this list as a starting point to create a more rewarding and engaged workplace.

Have creative outlets. Burnout interferes with your ability to perform well, increases rigid thinking, and decreases your ability to think accurately, flexibly, and creatively (Noworol, et al., 1993). Even if you aren’t able to flex your creative muscles at work, having some type of creative outlet will keep you engaged and motivated.

Take care of yourself. “There’s always something to do,” I can still hear my dad saying to me as I sat relaxing at the end of my shift at his plastic injection molding company. “Here’s a broom.” I find it very hard to just sit and relax because it always feels like there is something to do (and there usually is). When I was a lawyer, lunch often involved wolfing down some food-like substance at my desk while I continued to read contracts and catch up on emails. While my work ethic was outwardly admired, I was not working at a sustainable pace. It’s seductive to think we must always be present, sitting at our desks, in order for our worlds to run right, but our bodies aren’t machines (no matter how much caffeine and sugar you pump in). And really, whatever “it” is (work, chores, homework) will still be there after you take a much-needed break.

Get support where you can find it. The number of people who say they have no one with whom they can discuss important matters has nearly tripled in the past two and a half decades (McPherson et al., 2006). The more I burned out, the more I just wanted to hole up in my office and avoid people, and that was exactly the opposite of what I should have been doing. I didn’t want to let people know how awful I was really feeling because I thought it meant I was weak. It takes time and effort to maintain social connections, but supportive people are the best inoculation against burnout.

Get real and go there. I had to have some tough internal and external conversations when I burned out. I had to figure out why I started getting panic attacks at the age of 14, and why they came back. I had to figure out why I thought it was more impressive to become a lawyer instead of following my heart to become a writer. I had to dig deep to uncover why I was a people pleasing, perfectionist, achieve-aholic. I had to reconnect with my values. Getting real isn’t always pretty (which is probably why you’re avoiding it), but true happiness and burnout prevention depend on it.

Increase your diet of positive emotions. Studies show that increasing your diet of positive emotion builds your resilience, creativity (see #3 above), and ability to be solution-focused, things that are in short supply if you feel like you’re burning out. I made it a point to start noticing when people did things well (and told them so), and I tried to stop being so hard on myself. Aim for a ratio of positive emotions to negative emotions of at least 3:1, which is the tipping point to start experiencing increased resilience and happiness (Fredrickson, 2009).

Justice Oliver Wendell Holmes once said, “Too many people die with their music still in them.” After finding this quote in another article I wrote, one of my readers asked me, “What if the problem is that people are still alive but their music has died?” And that my friends, is what burnout feels like – being alive but feeling like your music has died. My work involves making sure that never happens to you.

Link: http://www.psychologytoday.com/blog/pressure-proof/201306/7-strategies-prevent-burnout

Alzheimer’s & dementia prevention #5: Stress management

Stress that is chronic or severe takes a heavy toll on the brain, leading to shrinkage in a key memory area of the brain known as the hippocampus, hampering nerve cell growth, and increasing your risk of Alzheimer’s disease and dementia. Yet simple daily tools can minimize its harmful effects.

Get your stress levels in check with these proven techniques

• Breathe! Stress alters your breathing rate and impacts oxygen levels in the brain. Quiet your stress response with deep, abdominal breathing. Restorative breathing is powerful, simple, and free!
• Schedule daily relaxation activities. Keeping stress under control requires regular effort. Make relaxation a priority, whether it’s a walk in the park, playtime with your dog, yoga, or a soothing bath.
• Nourish inner peace. Most scientists acknowledge a strong mind-body connection, and various studies associate spirituality with better brain health. Regular meditation, prayer, reflection, and religious practice may immunize you against the damaging effects of stress.

Link: http://www.helpguide.org/elder/alzheimers_prevention_slowing_down_treatment.htm

Alzheimer’s & dementia prevention pillar #4: Quality sleep

Your brain needs regular, restful sleep in order to function at optimum capacity. Sleep deprivation not only leaves you cranky and tired, but impairs your ability to think, problem-solve, and process, store, and recall information. Deep, dreamy sleep is critical for memory formation and retention. If nightly sleep deprivation is slowing your thinking and affecting your mood, you may be at greater risk of developing symptoms of Alzheimer’s disease. The vast majority of adults need at least 8 hours of sleep per night. Any less, and productivity and creativity suffers.

Tips to help you combat insomnia and catch up on your Z’s

• Establish a regular sleep schedule. Going to bed and getting up at the same time reinforces your natural circadian rhythms. Your brain’s clock responds to regularity.
• Be smart about napping. While taking a nap can be a great way to recharge, especially for older adults, it can make insomnia worse. If insomnia is a problem for you, consider eliminating napping. If you must nap, do it in the early afternoon, and limit it to thirty minutes.
• Set the mood. Reserve your bed for sleep and sex, and ban television and computers from the bedroom (both are stimulating and may lead to difficulties falling asleep).
• Create a relaxing bedtime ritual. Take a hot bath, do some light stretches, write in your journal, or dim the lights. As it becomes habit, your nightly ritual will send a powerful signal to your brain that it’s time for deep restorative sleep.
• Quiet your inner chatter. When stress, anxiety, or negative internal dialogues keep you awake, get out of bed. Try reading or relaxing in another room for twenty minutes then hop back in. 

Link: http://www.helpguide.org/elder/alzheimers_prevention_slowing_down_treatment.htm

Alzheimer’s & dementia prevention pillar #3: Mental stimulation

Those who continue learning new things throughout life and challenging their brains are less likely to develop Alzheimer’s disease and dementia, so make it a point to stay mentally active. In essence, you need to “use it or lose it.”

Activities involving multiple tasks or requiring communication, interaction, and organization offer the greatest protection. Set aside time each day to stimulate your brain. Cross-training with these brain-boosting activities will help keep you mentally sharp:

• Learn something new. Study a foreign language, learn sign language, practice a musical instrument, read the newspaper or a good book, or take up a new hobby. The greater the novelty and challenge, the larger the deposit in your brain reserves.
• Practice memorization. Start with something short, progressing to something a little more involved, such as the 50 U.S. state capitals. Create rhymes and patterns to strengthen your memory connections.
• Enjoy strategy games, puzzles, and riddles. Brain teasers and strategy games provide a great mental workout and build your capacity to form and retain cognitive associations. Do a crossword puzzle, play board games or cards, or work word and number games, such as Scrabble or Sudoku.
• Practice the 5 W’s. Observe and report like a crime detective. Keep a “Who, What, Where, When, and Why” list of your daily experiences. Capturing visual details keeps your neurons firing.
• Follow the road less traveled. Take a new route, eat with your non-dominant hand, rearrange your computer file system. Vary your habits regularly to create new brain pathways.

Link: http://www.helpguide.org/elder/alzheimers_prevention_slowing_down_treatment.htm

Alzheimer’s & dementia prevention pillar #2: Healthy diet

Just like the rest of your body, your brain needs a nutritious diet to operate at its best. Focus on eating plenty of fresh fruit and vegetables, lean protein, and healthy fats.

Eating habits that reduce inflammation and provide a steady supply of fuel are best. These food tips will keep you protected:

• Follow a Mediterranean diet. Eating a heart-healthy Mediterranean diet rich in fish, nuts, whole grains, olive oil, and abundant fresh produce. Treat yourself to the occasional glass of red wine and square of dark chocolate.
• Avoid trans fats and saturated fats. Reduce your consumption by avoiding full-fat dairy products, red meat, fast food, fried foods, and packaged and processed foods.
• Eat a heart-healthy diet. What’s good for the heart is also good for the brain, so by reducing your risk of heart disease, you also lower your risk of Alzheimer’s disease.
• Get plenty of omega-3 fats. Evidence suggests that omega-3 fatty acids may help prevent Alzheimer’s disease and dementia. Food sources include cold-water fish such as salmon, tuna, trout, mackerel, and sardines. You can also supplement with fish oil.
• Eat 4-6 small meals throughout the day, rather than 3 large meals. Eating at regular intervals helps to maintain consistent blood sugar levels. Also avoid refined carbohydrates high in sugar and white flour, which rapidly spike glucose levels and inflame your brain.
• Eat across the rainbow. Emphasize fruits and vegetables across the color spectrum to maximize protective antioxidants and vitamins. Daily servings of berries and green leafy vegetables should be part of your brain-protective regimen.
• Enjoy daily cups of tea. Regular consumption of green tea may enhance memory and mental alertness and slow brain aging. White and oolong teas are also particularly brain healthy. Drinking 2-4 cups daily has proven benefits. Although not as powerful as tea, coffee also confers brain benefits.

Give up smoking and drink in moderation

Smoking and heavy drinking are two of the most preventable risk factors for Alzheimer’s disease. Not only does smoking increase the odds for those over 65 by nearly 79 percent, researchers at Miami’s Mt. Sinai Medical Center warn that a combination of these two behaviors reduces the age of Alzheimer’s onset by six to seven years.

When you stop smoking, the brain benefits from improved circulation almost immediately, no matter your age. However, brain changes from alcohol abuse can only be reversed in their early stages.

What about supplements?

Folic acid, vitamin B12, vitamin D, magnesium, and fish oil are believed to preserve and improve brain health. Studies of vitamin E, ginkgo biloba, coenzyme Q10, and turmeric have yielded less conclusive results, but may also be beneficial in the prevention or delay of Alzheimer’s and dementia symptoms. 

Talk to your doctor about medication interactions, and review current literature to make a personal decision about the costs and benefits of dietary supplements.

Eat to protect glial cells.

Researchers believe that glial cells may help remove debris and toxins from the brain that can contribute to Alzheimer’s disease. Consuming foods such as ginger, green tea, fatty fish, soy products, blueberries, and other dark berries may protect these important cells from damage.

Link: http://www.helpguide.org/elder/alzheimers_prevention_slowing_down_treatment.htm

Alzheimer’s & dementia prevention pillar #1: Regular exercise

According to the Alzheimer’s Research & Prevention Foundation, physical exercise reduces your risk of developing Alzheimer’s disease by 50 percent.

Regular exercise can also slow further deterioration in those who have already started to develop cognitive problems.

If you’ve been inactive for a while, starting an exercise program can be intimidating. But you don’t have to take up jogging or sign up for a gym membership. Look for small ways to add more movement into your day. Park at the far end of the parking lot, take the stairs, carry your own groceries, or walk around the block or pace while talking on your cell phone.

Tips for getting started and sticking with your exercise plan:

• Aim for at least 30 minutes of aerobic exercise five times per week. Try walking, swimming, or any other activity that gets your heart rate up. Even routine activities such as gardening, cleaning, or doing laundry count as exercise.
• Build muscle to pump up your brain. Moderate levels of weight and resistance training not only increase muscle mass, they help you maintain brain health. Combining aerobics and strength training is better than either activity alone. For those over 65, adding 2-3 strength sessions to your weekly routine may cut your risk of Alzheimer’s in half.
• Include balance and coordination exercises. Head injuries from falls are an increasing risk as you grow older, which in turn increase your risk for Alzheimer’s disease and dementia. Balance and coordination exercises can help you stay agile and avoid spills. Try yoga, Tai Chi, or exercises using balance discs or balance balls.
• Stick with it for a month. It takes approximately 28 days for a new routine to become habit. Once you’re over this hump, keeping up your exercise routine will feel natural. In the meantime, write realistic goals on a workout calendar and post it on the fridge. Build in frequent rewards, and within no time, the feel-good endorphins from regular exercise will help you forget the remote…and head out the door.
• Protect your head. Studies suggest that head trauma at any point in life significantly increases your risk of Alzheimer’s disease. This includes repeated hits in sports activities such as football, soccer, and boxing, or one-time injuries from a bicycle, skating, or motorcycle accident. Protect your brain by wearing properly fitting sports helmets, buckling your seatbelt, and trip-proofing your environment. Avoid activities that compete for your attention—like talking on your cell while driving. A moment’s distraction can lead to a brain-injuring thud!

The benefits of exercise

In addition to protecting against Alzheimer’s and dementia, regular exercise:

• Reduces stress
• Boosts mood
• Improves memory
• Increases energy

 Link: http://www.helpguide.org/elder/alzheimers_prevention_slowing_down_treatment.htm

Alzheimer’s & Dementia Prevention

How To Reduce Your Risk and Protect Your Brain

For many years, we've been told that there's little we can do to prevent Alzheimer’s disease and other types of dementia but hope for the best and wait for a pharmaceutical cure. But the truth is you can reduce your risk by eating right, exercising, staying mentally and socially active, and keeping stress in check. By leading a brain-healthy lifestyle, you may be able to prevent Alzheimer’s symptoms and slow down, or even reverse, the process of deterioration.

Lifestyle choices can protect your brain

Researchers across the world are racing towards a cure for Alzheimer’s disease. But as prevalence rates climb, their focus has broadened from treatment to prevention strategies. What they’ve discovered is that it may be possible to prevent or delay the symptoms of Alzheimer’s disease and other dementias through a combination of healthful habits. While Alzheimer’s disease accounts for 50 percent of dementia cases, vascular dementia accounts for up to 40 percent in older adults, and there is much you can do to prevent this type of dementia.

It’s never too early to start boosting your brain reserves, but whatever your age, there are steps you can take to keep your brain healthy.

The 6 pillars of a brain-healthy lifestyle

The health of your brain, like the health of your body, depends on many factors.

While some factors, such as your genes, are out of your control, many powerful lifestyle factors are within your sphere of influence.

The six pillars of a brain-healthy lifestyle are:

1. Regular exercise
2. Healthy diet
3. Mental stimulation
4. Quality sleep
5. Stress management
6. An active social life

The more you strengthen each of the six pillars in your daily life, the healthier and hardier your brain will be. When you lead a brain-healthy lifestyle, your brain will stay working stronger…longer.

Link: http://www.helpguide.org/elder/alzheimers_prevention_slowing_down_treatment.htm

Biology - Brain: Memory

Memory is one of the activities of the human mind, much studied by cognitive psychology. It is the capacity to retain an impression of past experiences. There are multiple types of classifications for memory based on duration, nature and retrieval of perceived items.

The main stages in the formation and retrieval of memory, from an information processing perspective, are:

• Encoding  (processing of received information by acquisition)
• Storage  (building a permanent record of received information as a result of consolidation)
• Retrieval  (calling back the stored information and use it in a suitable way to execute a given task)

A basic and generally accepted classification (depending on the duration of memory retention and the amount of stored information during these stages) identifies three distinct types of memory:

• sensory memory
• short-term memory
• long-term memory

The first stage corresponds approximately to the initial moment that an item is perceived. Some of this information in the sensory area proceeds to the sensory store, which is referred to as short-term memory.

 

Sensory memory is characterized by the duration of memory retention from miliseconds to seconds and short-term memory from seconds to minutes. Once the information is stored, it can be retrieved in a period of time, which ranges from days to years and this type of memory is called long-term memory.

The sensory and short-term memory are bio-electrical types of memory, as they store information in form of electrical signals, whereas the long-term memory is a bio-chemical type of memory.

When we are given a seven digit number, we can remember it only for a few seconds and then forget (short term memory). On the other hand we remember our telephone numbers, since we have stored it in our brain after long periods of consolidation (long term memory).

The definition of working memory, which is erroneously used as a synonym of short-term memory, is based on not only the duration of memory retention but also the way how it is used in daily life activities. For instance, when we are asked to multiply 45 with 4 in our head, we have to perform a series of simple calculations (addition and multiplications) to give the final answer. The process of keeping in mind all this information for a short period of time is called working memory.

Another good example is a chess player, who is playing with multiple opponents at the same time and trying to remember the positions of pieces in all games and using this information to make a good move, when required. Long-term memory can further be classified as declarative (explicit) and procedural (implicit).

Explicit memory requires conscious recall, in other words the information must be called back consciously when it is required. If this information is about our own lives (what we ate for breakfast in this morning, our birth date etc.), it is called episodic memory, if it concerns our knowledge about the world (capital of France, presidents of US etc.), then it is called semantic memory.

Implicit memory is not based on the conscious recall of information stored in our brain, but on the habituation or sensitization of learned facts. We perform better in a given task each time we repeat the task, that is we use our implicit memory without necessarily remembering the previous experiences but using the previously learned behaviours unconsciously. For example, classical conditioning is one kind of implicit memory.

 

Another example is memory resulting from motor learning, which depends upon the cerebellum and basal ganglia. 

Link: http://www.bibliotecapleyades.net/ciencia/ciencia_brain01.htm

Biology - Brain: Brain Activity During Meditation

The brain is an electrochemical organ - using electromagnetic energy to function. Electrical activity emanating from the brain is displayed in the form of brainwaves.

 

 

There are four categories of these brainwaves. They range from the high amplitude, low frequency delta to the low amplitude, high frequency beta. Men, women and children of all ages experience the same characteristic brainwaves. They are consistent across cultures and country boundaries.

During meditation brain waves alter.

• BETA - 13-30 cycles per second - awaking awareness, extroversion, concentration, logical thinking - active conversation. A debater would be in high beta. A person making a speech, or a teacher, or a talk show host would all be in beta when they are engaged in their work.
   
• ALPHA - 7-13 cycles per second - relaxation times, non-arousal, meditation, hypnosis
   
• THETA - 4-7 cycles per second - day dreaming, dreaming, creativity, meditation, paranormal phenomena, out of body experiences, ESP, shamanic journeys.

A person who is driving on a freeway, and discovers that they can’t recall the last five miles, is often in a theta state - induced by the process of freeway driving. This can also occur in the shower or tub or even while shaving or brushing your hair. It is a state where tasks become so automatic that you can mentally disengage from them. The ideation that can take place during the theta state is often free flow and occurs without censorship or guilt. It is typically a very positive mental state.

• DELTA - 1.5-4 or less cycles per second - deep dreamless sleep

Link: http://www.bibliotecapleyades.net/ciencia/ciencia_brain01.htm

Meet Your Brain Waves — Introducing Alpha, Beta, Theta, Delta, And Gamma

It’s important to understand how your brain contributes to the state of your mind. While most of us focus on looking at our emotions in an attempt to become happier, more spiritual beings, our brains waves and our subconscious mind also play a key part in our quest for fulfillment. 

In this article, we’ll be looking at our five brain wave frequencies and how they affect our state of mind, and will be following up on Thursday with a more in-depth look at the impact they have on us physically and mentally, in addition to some exercises we can do to “switch on” certain frequencies.

Are We The Controllers Of Our Reality?

We easily forget that we are the controllers of our reality – and that “our reality” is not made up of outside influences, but that it actually consists of our thoughts, beliefs and mindset.

Therefore, by learning about the deeper states of consciousness, you can open your subconscious mind and create your reality at will, and with precision. To do this, the first step is understanding your different brain frequencies. Did you know that we all have five (Beta, Alpha, Theta, Delta and Gamma), and each frequency is measured in cycles per second (Hz) and has its own set of characteristics representing a specific level of brain activity and a unique state of consciousness? Smart, eh?

1) Beta (14-40Hz) – The Waking Consciousness And Reasoning Wave

 

Beta brain waves are associated with normal waking consciousness and a heightened state of alertness, logic and critical reasoning.

While Beta brain waves are important for effective functioning throughout the day, they also can translate into stress, anxiety and restlessness.

The voice of Beta can be described as being that nagging little inner critic that gets louder the higher you go into range. Therefore, with a majority of adults operate at Beta; it’s little surprise that stress is today’s most common health problem.

2) Alpha (7.5-14Hz) – The Deep Relaxation Wave

Alpha brain waves are present in deep relaxation and usually when the eyes are closed, when you’re slipping into a lovely daydream or during light meditation. It is an optimal time to program the mind for success and it also heightens your imagination, visualization, memory, learning and concentration.

It is the gateway to your subconscious mind and lies at the base of your conscious awareness. The voice of Alpha is your intuition, which becomes clearer and more profound the closer you get to 7.5Hz.

The renowned Silva Method, by Jose Silva is premised on the power of Alpha. However the Silva Method allows you to achieve this deep relaxation through meditation during waking consciousness.

3) Theta (4-7.5Hz) – The Light Meditation And Sleeping Wave

Theta brain waves are present during deep meditation and light sleep, including the all-important REM dream state. It is the realm of your subconsciousness and only experienced momentarily as you drift off to sleep from Alpha and wake from deep sleep (from Delta).

It is said that a sense of deep spiritual connection and unity with the universe can be experienced at Theta. Your mind’s most deep-seated programs are at Theta and it is where you experience vivid visualizations, great inspiration, profound creativity and exceptional insight. Unlike your other brain waves, the elusive voice of Theta is a silent voice.

It is at the Alpha-Theta border, from 7Hz to 8Hz, where the optimal range for visualization, mind programming and using the creative power of your mind begins. It’s the mental state which you consciously create your reality. At this frequency, you are conscious of your surroundings however your body is in deep relaxation.

>Find out more about the Alpha State of Mind on the Silva Method blog

4) Delta (0.5-4Hz) – The Deep Sleep Wave

 

The Delta frequency is the slowest of the frequencies and is experienced in deep, dreamless sleep and in very deep, transcendental meditation where awareness is fully detached.

Delta is the realm of your unconscious mind, and the gateway to the universal mind and the collective unconscious, where information received is otherwise unavailable at the conscious level.

Among many things, deep sleep is important for the healing process – as it’s linked with deep healing and regeneration. Hence, not having enough deep sleep is detrimental to your health in more ways than one.

5) Gamma (above 40Hz) – The Insight Wave

This range is the most recently discovered and is the fastest frequency at above 40Hz. While little is known about this state of mind, initial research shows Gamma waves are associated with bursts of insight and high-level information processing.

Link: http://www.finerminds.com/mind-power/brain-waves/