Tracy Packiam Alloway, PhD

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.

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)

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

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

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

Students with Autistic Spectrum Disorder (ASD) can display amazing abilities well beyond their age, yet struggle in simple, everyday tasks. A teacher told me of a 13 year boy who loved going to the principal’s office to work on math and science exams for 17 year olds, but could not dress himself. A fascinating aspect of this polarity is the “special abilities” displayed by some autistic individuals. These abilities far exceed expectations based on their IQ, and in some cases, their special ability exceeds the level reached by experts in the same field. Special abilities are generally found in the domains of music, memorization of lists, three-dimensional drawing, reading (hyperlexia), and calendar and mental calculation.

Of interest is whether their working memory reflects their extraordinary skills. It seems that the memory profile of an autistic savant is much like an individual with ASD without special abilities. If a memory test uses material that is related to their area of expertise, then savants outperform individuals with ASD without special abilities. For example, a savant calculator has a much higher score than ASD non-experts in number-based working memory tasks. Both ASD groups perform similarly in other working memory tasks. When compared with experts, we see a similar pattern. Both savants and experts show superior memory skills compared to their peers with the same IQ level when tested using material from their area of expertise. Studies that have compared memory skills for music in savant musicians with typical musicians reveal that they demonstrate the same sensitivity and awareness of musical dimensions such as rhythm and pitch. Their similar performance in a music memory test suggests that autistic savant musicians and typical musicians use the working memory in a comparable way.

Autistic savants have built up a huge knowledge base that can be used to increase working memory performance in the area of their expertise. In some cases, their expertise and training in one area can also enhance their scores in another area. For example, calendar calculators and savant calculators can achieve phenomenal scores in memory tests using nonsense words. They are able to apply their training in remembering one type of abstract material (dates and numbers) to related things. One explanation is that dates, numbers, and nonsense words are all abstract material and we use similar mechanisms to remember information that is not connected to semantic memory. The bottom line is that autistic savants have superior memory in the area of their expertise, and in some cases in related areas. This enhanced memory performance far exceeds what is expected of their IQ levels. We see that working memory is very different from IQ.

LISTEN TO A PODCAST ON AUTISM

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

When my research team interviewed Robert, a 10 year old, he was pleased to report that his memory for numbers is very good and he “can do 2, 5 and 10 times tables but 4 and 6 times tables are hard.” He said that if he can’t see the numbers he can’t remember them: “I need to have them written down because they don’t stay in my head.”

Like Robert, the student with dyscalculia has clear working memory deficits. However, the link between working memory and math skills depends on the age of the child as well as the type of math task. Verbal working memory plays a strong role in math skills in 7-year olds and is a reliable indicator of dyscalculia in the first year of formal schooling. Once children reach adolescence, verbal working memory is no longer significantly linked to mathematical skills. One explanation for this change is that verbal working memory plays a crucial role for basic arithmetic skills like learning arithmetic rules and retaining relevant data such as carried digits when they are young. However, as children get older other factors such as number knowledge and strategies play a greater role.

Visual-spatial working memory problems are also linked to dyscalculia. It has been suggested that visual-spatial memory functions as a mental blackboard to support number representation, such as place value and alignment in columns in counting and arithmetic tasks. We also use visual-spatial memory to solve multi-digit operations and problems presented visually, including those using blocks. Poor working memory is thought to be one explanation for dyscalculia because it limits their ability to remember mathematical rules, from basic concepts like counting in ascending and descending order, to more complicated algebraic functions.

What is working memory like in students with Autistic Spectrum Disoder (ASD)? Let’s first look at verbal short-term memory skills in high functioning ASD students. Their skills in this area can vary, in some cases, students can have above average short-term memory, while others perform at the same level of a student with language impairments. In my own research, I found that high functioning teenagers display a verbal short-term memory problem . The type of material they have to remember provides us with a clue to their memory profile. They struggle in particular with abstract information like nonsense words or new vocabulary. Why? The strategy they use to remember can over-burden them. Studies confirm that even high functioning individuals do not use their long-term memory or visual strategies to support immediate recall. Instead, they rehearse things over and over again to prevent forgetting. While this can be useful in remembering short sequences of information, it is ultimately a time-consuming and inefficient strategy to simply keep repeating things.

Now let’s look at their working memory profile. The majority of individuals with ASD do not have deficits in this area. In visual working memory tasks, they are shown a matrix with dots that appear in random locations and have to recall their location in backwards sequence. Both my own research as well as other studies confirms that their performance is similar to their same-aged typically developing peers, and those with the same IQ level. In the classroom, this means that they won’t have any difficulty with remembering information that is visually presented. The problem arises when they have to use their eyes to track the movements of a teacher as part of a lesson. Even high functioning individuals have trouble shifting their gaze from one thing to another and may misidentify the relevant information to focus on. Remember that one feature of ASD is their ability to concentrate on one thing at a time. In the classroom, they can find it distracting to shift their visual attention from the board to the teacher talking and back again, and as a result struggle to remember the lesson even if it is presented visually.

Verbal working memory is not impaired in individuals with ASD. Students who are low functioning can perform lower than their same-age peers but when they are compared with peers with the same IQ levels, their verbal working memory performance is similar. In some cases, psychologists have observed weaknesses in verbal working memory. However, this is likely the result of having to visually scan material to pick out the relevant information, rather than a working memory deficit per se. Studies of brain activity reveal a very interesting pattern. When a child with ASD is presented with two tasks and has to focus on one while ignoring the other distracting task, their brain activity reveals that they do not actually shift their attention to the more important information. They have a difficult time determining what information is important. In the classroom, some students with ASD might appear to struggle with certain memory-heavy activities. However, this may be connected to their difficulty in knowing what they should focus on, rather than poor working memory.

*Alloway et al (2009). Journal of Learning Disabilities READ

I was invited to write a blog post for SharpBrains. Here is the entry:

Working memory is the ability to hold information in your head and manipulate it mentally. You use this mental workspace when adding up two numbers spoken to you by someone else without being able to use pen and paper or a calculator. Children at school need this memory on a daily basis for a variety of tasks such as following teachers’ instructions or remembering sentences they have been asked to write down.

The main goal of this article was to investigate the predictive power of working memory and IQ in learning in typically developing children over a six-year period. This issue is important because distinguishing between the cognitive skills underpinning success in learning is crucial for early screening and intervention.

In this study, typically developing students were tested for their IQ and working memory at 5 years old and again when they were 11 years old. They were also tested on their academic attainments in reading, spelling and maths.

The findings revealed that a child’s success in all aspects of learning is down to how good their working memory is regardless of IQ score. Critically, working memory at the start of formal education is a more powerful predictor of subsequent academic success than IQ in the early years.

This unique finding is important as it addresses concerns that general intelligence, still viewed as a key predictor of academic success, is unreliable. An individual can have an average IQ score but perform poorly in learning.

Some psychologists suggest that the link between IQ and learning is greatest when the individual is learning new information, rather than at later stages when it is suggested that gains made are the result of practice.

Yet the findings from this research that working memory capacity predicted subsequent skills in reading, spelling, and math suggests that some cognitive skills contribute to learning beyond practice effects.

The study also found that, as opposed to IQ, working memory is not linked to the parents’ level of education or socio-economic background. This means all children regardless of background or environmental influence can have the same opportunities to fulfil potential if working memory is assessed and problems addressed where necessary.

Working memory is a relatively stable construct that has powerful implications for academic success. While working memory does increase with age, its relative capacity remains constant. This means that a child at the bottom 10 percentile compared to their same-aged peers is likely to remain at this level throughout their academic career.

In summary, the present article suggests that the traditional reliance on IQ as a benchmark for academic success may be misguided. Instead, schools should focus on assessing working memory as it is the best predictor of reading, spelling and math skills six years later. At present, poor working memory is rarely identified by teachers, who often describe children with this problem as inattentive or as having lower levels of intelligence. However, there are standardized assessments that are suitable for educators to use to screen their students for working memory problems. For example, the Automated Working Memory Assessment (published by the Psychological Corporation) allows non-specialist assessors such as classroom teachers to screen their students for significant working memory problems quickly and effectively.

Problems with working memory can be easily addressed in schools—an advantage over IQ which is more difficult to influence by teachers. Early intervention in working memory could lead to a reduction in the number of those failing schools and help address the problem of under-achievement in schools.

Alloway & RG Alloway (2010) Journal of Experimental Child Psychology READ