Posts Tagged ‘Working Memory’

Jungle Memory improves IQ scores in students with dyslexia

Posted by Tracy No Comments Thursday, August 19th, 2010

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Brain training is a growing and exciting new area in scientific research. In particular, there is a lot of evidence of the brain’s plasticity: that it can actually change-shrink or grow-depending on what we do.  I wanted to investigate whether students with learning disabilities can also benefit from brain training.

I recently completed a study together with Dyslexia Scotland and the Autistic Treatment Trust on the impact of brain training. A group of students aged between 8 to 16 years old took part. They completed some tests of IQ and working memory and then participated in an 8-week training programme called Jungle Memory.
The findings were very exciting! The students who used the Jungle Memory training programme regularly (4x a week for 30 minutes) had higher IQ and working memory scores, compared to those who only trained 1x a week and those who didn’t train at all. By training your brain you will be able to improve your child’s prospects in classroom and beyond.

If you would like further details on this study, please contact me.

Can Your Working Memory Make You Happy?

Posted by Tracy No Comments Friday, July 23rd, 2010

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Do you ever have days when you wake up and everything seems wrong with the world? Hopefully for most of these types of days are not the norm but the exception. However, there are some people who see everything as ‘half-empty’ instead of ‘half-full. Using cutting-edge psychological research, I am interested in finding out if it really matters–Does it matter if we see the glass as half-empty?

We are on the cusp of a new revolution in intelligence that affects every aspect of our lives from work and relationships, to our childhood, education, and old age. Working Memory, the ability to remember and mentally process information, is so important that without it we could not function as a society or as individuals. One way to visualise working memory is as the brain’s “Post-it Note”: we make mental scribbles of bits of information we need to remember and work with. For example, we use working memory to remember directions while driving or someone’s name and phone number. Without it, we would be literally lost; we wouldn’t know how to get to that important meeting and would forget important contacts. Working memory is critical for many activities at school, from complex subjects such as reading comprehension, mental arithmetic, and word problems to simple tasks like copying from the board and navigating the halls.

Working memory makes a difference beyond the classroom walls as well. People with superior working memory tend to have better jobs, better relationships, and more happy and fulfilling lives. People with poor working memory struggle in their work, their personal lives, and are more likely to experience trouble with the law. More recently, a growing number of studies demonstrate that working memory is also important for our mental health. In a recent study that I conducted with 20-year-olds, I found that people who view the glass as half-empty but have good working memory are less likely to suffer depression compared to those who view the glass as half-empty and have low working memory. So while we may think that seeing the glass as half-empty, having good working memory acts like a buffer to protect our mental health.

What about you? What does your working memory tell you about your world-view? Why not find out by participating in an online study. Here is what you will have to do:

Take some memory tests: Don’t worry, I don’t want to know how often you forget where you left your car keys or if you can remember your loved one’s birthday. You will have to do something much easier. You will see some shapes and just have to remember where you saw them on a grid.

Next, tell me your views about different sentences, like “I felt hopeful about the future”; or  ”I was bothered by things that don’t usually bother me”.

There is also a Memory board where you can tell more me more different strategies that you use to keep your memory alert.

PARTICIPATE NOW

Pregnancy Brain and Working Memory

Posted by Tracy 3 Comments Sunday, July 11th, 2010

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So this week I have burnt the pasta (twice!), put the milk away in the cupboard with the glasses, and locked the car and house keys in the car. If you asked me in my six-month of pregnancy whether pregnancy brain is a myth, I would say NO!

Some pregnancy women blame such actions as the result of the lack of sleep. However, it seems that I can’t use sleep deprivation as an excuse for my forgetfulness. Studies have found that the lack of sleep is not actually linked to memory loss and forgetfulness in pregnant women.

Thankfully, there is a reason for my new (and unwanted!) absent-minded brain. Scientific studies show that during pregnancy, a woman’s brain changes*. For starters, the hippocampus, which is linked to spatial memory and long-term knowledge, actually shrinks during pregnancy. This means that a pregnant woman’s sense of direction is not always as reliable as it used to be.

Why does the pregnancy brain shrink? The brain shrinkage is the result of hormone changes during pregnancy, especially in the final trimester. Some hormone levels, such as progesterone and estrogen, rise and fall during pregnancy. We need a perfect balance of these hormone levels to use working memory-our ability to incorporate new information with long-term knowledge stores. When estrogen are very high, such as during the last trimester of pregnancy, working memory is not as efficient. This makes simple tasks like remembering that the milk goes in the fridge (and not the cupboard) or juggling multiple tasks at work a little more difficult than usual.

Happily, brain size goes back to normal after the baby is born. Pregnant women can be confident of performing to their usual cognitive capabilities, but be aware that the pregnancy brain means that they may be more affected than usual when taking on additional responsibilities.

From TRAINING YOUR BRAIN for Dummies (due Dec 2010)

* Galea et al. (2000). Hormones and Behavior.

The Working Memory Brain

Posted by Tracy No Comments Monday, July 5th, 2010

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Read these sentences and decide if they are true or false:

1.      Bananas live in water: True or False

2.      Flowers smell nice: True or False

3.      Dogs have four legs: True or False

Now, without looking at those sentences, can you remember the last word in each sentence in the correct order? If you were able to remember them, congratulate yourself. Your working memory is like an average 10 year old. This test is an example of the Listening Recall test from the Automated Working Memory Assessment. It measures verbal (auditory) working memory.

Brain imaging has confirmed that when we perform working memory tests, like the one above, there is electrical activity of neurons in the prefrontal cortex. We use different parts of the brain to remember verbal and visual-spatial information. Scientists suggest that the lower area of the prefrontal cortex (ventrolateral) is responsible for verbal working memory, while the higher area (dorsolateral) is linked to spatial working memory. These two areas are also linked to the different processes in performing a working memory task: the ventrolateral areas are engaged with keeping information active and the dorsolateral areas are involved in processing or managing information. Other areas of the brain are also activated during working memory tasks. When we engage in visual-spatial tasks, parts of the right-hemisphere and the hippocampus are also activated. In verbal working memory tasks, there is activation in the left-hemisphere, particularly in the ‘language centers’ such as Broca’s area. What is the take home message? Protect your head, you will need it for the rest of your life!

Adapted from Improing Working Memory: Supporting Students’ Learning (Sage Publication, 2010)

Drive a taxi to improve your visual-spatial memory

Posted by Tracy 2 Comments Monday, June 7th, 2010

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A group of psychologists in London* were interested in the brains of taxi drivers. In particular, they wanted to know whether their visual-spatial memory was better than the rest of us.

There are many reasons why this would be the case. For starters, directions are taxi drivers’ lifeblood - they need to know their way inside and out of a city like London. They also have to take an extensive test called the Knowledge which requires drivers to know over 400 routes. It is such a demanding course that 75% of people drop out. Yet, there are fantastic gains for those who do stick with it. Of course, there is a financial incentive - drivers stand to make significantly more money once passing the test.

However, there is a surprise bonus as the psychologists discovered: taxi drivers have bigger brains! Yes, it is true. The part of brain associated with directions (visual-spatial memory) is actually larger is experienced taxi drivers compared to the average individual. The brain changes to accommodate the increasingly amount of information on navigating and directions that taxi drivers have to take in.

This is an exciting study because it demonstrates that our brain has a certain amount of flexibility and can expand in response to certain information. Previously, psychologists found brain changes only in patients who had sustained a brain injury, but in the case of the taxi drivers we see that all of us can benefit from working our memory muscles.

From TRAINING YOUR BRAIN for Dummies (due Dec 2010)

*E. Maguire et al. (2000) Proceedings of the National Academy of Science.

Alzheimers and Memory Loss

Posted by Tracy 1 Comment Monday, May 24th, 2010

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Psychologists were interested in how language skills impact Alzheimer’s*. They looked at a group of nuns in their study, as they didn’t smoke, drink, and had a similar lifestyle. They found that language skills in early adulthood were linked to Alzheimer’s in old age. Those nuns who kept a diary in their twenties were less likely to experience memory loss when they were older. More importantly, those who used very descriptive words to talk about their day had better language and memory skills than those who didn’t. What was even more fascinating is that although some of the nuns’ brains showed signs of Alzheimer’s, their cognitive skills, such as their language and memory, demonstrated no weakness! Some of these nuns were over 100 years old and were articulate and could engage in conversation. The nursing staff who were caring from them didn’t even know that they had Alzheimer’s. This is such an exciting study because it reveals that good language skills in early adulthood make a huge difference in decreasing our risk of getting Alzheimer’s and dementia. So grab a pencil and a book and start writing!

From TRAINING YOUR BRAIN FOR DUMMIES (due Dec 2010)

*Riley et al. (2005). Neurobiology of Aging.

Gifted and ADHD: What do they have in common?

Posted by Tracy 2 Comments Monday, May 10th, 2010

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Students with ADHD often have average or even high IQ. Yet they struggle with learning. I was quite puzzled by this for some time. Then I noticed a similar pattern of behavior problems, such as fidgeting, highly distractible, and lacking motivation, coupled with high IQ in an entirely different group—gifted students. Although their behavioral profile is similar between these two groups, they are driven by different reasons. The ADHD student has difficulty controlling their behavior and inhibiting inappropriate actions, while gifted students ‘act up’ out of boredom or being insufficiently challenged. )
Here is a case study of a boy from my research collaboration with the National Association of Gifted Children in the UK.

Joseph was very articulate and our assessment with him took longer than usual as he asked questions frequently. He loves English and History and tried to begin many debates and discussions with us during the assessment. His mother says that he spends hours and hours researching topics that he finds interesting – these might not be related to school. However, his pattern of behavior on the Conners Rating Scale indicated a very high ADHD. When asked about his motivation levels, he was very apathetic and negative about his school and learning in general.

These two groups of students—ADHD and gifted ones—had similar behavioral patterns and IQ scores. Yet they had very different learning outcomes. Why? When I looked more closely at their scores, I found their working memory profiles were very different. As you would expect, the gifted students had excellent working memory, which was linked to their above average academic outcomes. In contrast, the ADHD students’ poor working memory was linked to low achievement. Average IQ does not suggest average grades. If a student has a working memory problem, they will struggle academically even though they have average IQ ability.

EXCERPT FROM Improving Working Memory

Working Memory Levels the Playing Field

Posted by Tracy 1 Comment Monday, April 19th, 2010

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You may already know that working memory is important to academic success. But did you know that working memory is one of the most important skills that predict learning outcomes. Working memory is even more important than IQ. Let’s take a step back. Before we get to working memory in the classroom, let’s look at how environmental factors, such as financial background, can impact working memory

Think of a classroom in rural Brazil. There is so much working against these kids. Less than 15% will finish elementary school. Most leave without learning to read. Schools can’t afford to pay their teachers much and those teachers that do stick around don’t always have the skills and training to do their job. But could these students have the same ability and potential of their richer urban peers? My colleagues decided to test this theory*. They compared rural low-income kids with those from wealthy urban areas in Brazil in IQ and working memory tests. You would expect that the rural kids struggled behind their urban peers. Indeed, that was the case with the vocabulary test used to measure IQ. The urban students excelled in matching words with the correct definitions. They far superseded their rural counterparts in their knowledge, because they had more experience using the words on the test.

But here is the surprising finding: they were no better than the rural students on the working memory tests. It boils down to one thing-opportunity. The urban children had more opportunity to learn-at home, their parents have the skill and time to teach them, at school they receive more attention from teachers. They have had a rich base of knowledge cultivated over the years. But the exciting news is that students from deprived backgrounds have the same ability to succeed. Their working memory skills are no different from their urban peers. It is not an issue of IQ. It is a matter of giving these students the same opportunity to unlock their working memory potential.

Excerpt from IMPROVING WORKING MEMORY

*Engel et al (2008). Journal of Speech, Language, and Hearing Research

Can Facebook be good for your working memory?

Posted by Tracy 2 Comments Monday, April 12th, 2010

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Is technology impairing our working memory? From our ever-increasing reliance on word processing to help us improve grammar, Blackberries to remind us of appointments, speed-dial so we don’t have to remember phone numbers and a universe of information available at the click of a mouse. What is the trade-off: what we do give up when we rely on new technology? Are the likes of Facebook and YouTube reducing our ability to engage in everyday life? In fact, the opposite may be true; technology can dramatically improve our working memory.

Facebook one of the most popular social networking sites with more than 300 million active users. Apart from the novelty of connecting with people you haven’t seen since you were 5 years old (for better or for worse!), it can also promote a sense of social connectedness. Those who are cut off from others often become isolated and may miss out on many benefits within education and employment. Studies on elderly populations found that those who spent more time meeting up with friends or talking on the phone experience less memory loss than their peers who were more isolated.

Technology is advancing quickly and more and more students use social networking sites. But what impact does this have on education? Can virtual social connections boost working memory? I looked at these questions in a recent study. A group of high-schoolers filled in a questionnaire about how long they spent using social networking sites, such as Facebook. I also measured their IQ, working memory, and academic attainment. I found that those who used Facebook more regularly (1x a day) had better working memory scores, as well as higher spelling and vocabulary. The sense of belonging and social connectedness that we feel when using social networking sites such as Facebook, releases a feel-good hormone, which bolsters our working memory. Good news for schools who are integrating social networking sites into their programs.

TRY IT FOR YOURSELF

Doodle for your Working Memory

Posted by Tracy No Comments Monday, March 15th, 2010

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Have you ever caught a student doodling in the middle of a lesson? Well now scientific research supports their efforts to stave off boredom. A recent study compared the working memory of two groups of people: doodlers and non-doodlers. Both groups were asked to listen to a pre-recorded phone message about a birthday party and asked to remember the names of the people coming. The doodling group more names and places mentioned in the phone message compared to the non-doodlers. Doodling while listening can be beneficial because it helps the individual focus and maintain attention instead of tuning out altogether. It is not a demanding activity and acts like a buffer that prevents other activities like daydreaming to interfere with what you have to remember. So if you are worried that a student will start ‘zoning out’ during class, hand them a pencil!

J Andrade (2009) Applied Cognitive Psychology