I have written before about research that clearly demonstrates improved learning after sleep. Sleep promotes the "consolidation" of recently acquired short-term memories into more permanent memories.  Impaired consolidation is a major problem in teaching and learning. Teachers often have to repeat the same instruction again and again, and yet many children still do not perform well on high-stakes tests. Anything teachers can do to improve retention of instruction would be useful, and that includes making school children aware that they probably need to get more sleep. The well-known change in sleep cycles during adolescence makes a strong case for starting school later in the morning. But another issue is whether or not naps during the school day would improve learning.

A recent study in Brazilian schools has addressed this question by having 371 6th graders take a nap after receiving a 15-minute lecture on intentionally novel information that was not relevant to the normal curriculum. Students were then given a surprise multiple-choice test on this content at three different times after the lecture: 1, 2, and 5 days after the lecture.  Scores were compared with that of a pre-test on this material before the lecture.

Students were divided into a nap group, in which students were given sleep masks and encouraged to try to sleep, lying down on mats in a quiet room. The other group went to a regular class by their usual teacher after the lecture.

Not surprisingly, both groups showed improved scores (12% gain) when tested the next day. However, this gain disappeared by five days in the non-nap group, whereas essentially no decline in test scores was evident at testing two or five days later. Teachers would not be surprised that students soon forgot what they are taught. In this situation, the preserved memory in the nap group was especially impressive, given that the study was designed to impair learning in both nap and non-nap groups in four ways:

1.      Students were not allowed to take notes.

2.      Students were not encouraged to remember this information.

3.      The lecture topic was not relevant to the curriculum.

4.      Students did not know they were going to be tested.

If these constraints on learning had not been present, I suspect that the nap effect would have been much larger. Moreover, there was no objective measure of how much actual sleep each student had. Many might have just been resting. Data were not tracked by individual student, but rather averaged over the whole group. Finally, multiple-choice tests were used, and these only test recognition memory. If naps do improve memory, a larger nap effect might be seen with tests that call for students to generate a remembered answer, as in short answer or fill-in-the blanks tests.

While theory and experiments such as this suggest that napping could help student learning, there are of course practical constraints. Time spent napping is time that content cannot be presented.

My experience as an educational consultant in schools is that schools seem to conspire to make learning difficult. First, students are constantly over-stimulated and distracted, not only by social interactions, but by posters, pictures, and do-dads placed conspicuously all over the rooms and in the halls. Many teachers allow students to multi-task, for example, using cell and smart phones in class. Classes are commonly disturbed by loud public-speaker announcements from the principal's office and by loud bells signaling the end of class. Immediately after class, no quiet time is allowed for reflection on what happened in class. Students actually start tuning out about five minutes before the anticipated bell ring, and the bell causes them to leap up, run out into the halls, and start socializing. Then, of course, there is the emphasis on all manner of extracurricular activities that occupy the minds of many students much more than curriculum. It's a wonder students learn anything.

Finally, few if any teachers teach students how to learn. The emphasis is on what to learn and on performing well on state-mandated test scores. I have started to give teacher workshops to help teachers realize the importance of developing learning competence in their students. If students had better learning skills, the job of teaching would be much easier and student test performance would improve automatically.

Source:

Lemos, N. et al. (2014). Naps in school can enhance the duration of declarative memories learned by adolescents. Frontiers in Systems Neuroscience. Vol. 8, article 103. Doi: 10.3389/fnsys.2014.00103

Dr. Klemm is author of two books on learning and memory, Memory Power 101 and Better Grades, Less Effort.

When I was in veterinary medical school, I could often be found lounging in the fraternity living room listening to jazz records. My classmates were stunned that I was wasting so much time, when most of them had to study while I seemingly had nothing to do. O.K., so maybe I graduated fifth in my class rather than first, but I was not nearly as stressed as my classmates.

My reason for sacrificing study time was that it bolstered my spirits. Veterinary medicine is a lot harder than most people think. Veterinarians learn the same anatomy, physiology, pharmacology, microbiology, and so on as physicians do. In some schools, human and veterinary medical students take many of the same basic science classes. Moreover, veterinary students have to learn about multiple species, learn more public health, and take a year’s worth of surgery.

But back to the music issue: some people, especially students, think that listening to music helps the memory. Historically, supporters of this practice have referred to this as the “Mozart effect.” Most students, of course, listen to pop music rather than Mozart. Students are notorious for listening to music while studying. Why isn’t music a distraction? I have written before about how extraneous stimuli can prevent memory consolidation, which in the case of studying, consumes cognitive resources and prevents the formation of memory that lasts long enough for the next examination.

Because so many students listen to music while studying, formal experiments were recently reported on whether or not that is a good thing. These experiments, conducted in Finland, had a scientific rationale. Prior research had shown that listening to music that people considered pleasurable increased the release of dopamine in the brain, and dopamine is well known as a “feel good” neurotransmitter. Other research had also shown that dopamine promotes learning to approach rewards, while a deficiency of dopamine promotes learning of punishments.

Seventy three subjects, mean age of 27.1 years, listened to a battery of 14 songs and identified three that they really liked and three that were emotionally neutral. One of each was selected for use in the study, in which subjects were grouped in four different listening patterns involving a positive (P) or neutral (N) song during study and the opposite kind of song during testing. Thus, there were four groups, NN, NP, PP, PN. Each group was formed to have an approximately equal number of musicians and non-musicians.

The learning involved memorizing 54 pairs of Japanese characters, in which one character was arbitrarily given a high reward value (a simple smiley face feedback display during training) and the other character a low reward value (frowning face feedback). In the test phase, pairs were shuffled and thus served as a measure of how well the original learning was generalized.

Results indicated that people with more musical experience 

learned better with neutral music but tested better

with pleasurable music. The opposite was true for people without music training. My explanation is that pleasurable music is a distraction for a musically trained person who could be expected to pay more attention and devote more cognitive resources to pleasurable music’s inherent structure in the process of analyzing and realizing its pleasing quality. Neutral music is more easily ignored. A central tenet of learning is that any kind of distraction impairs formation of memory. The musically untrained people learned better with positive music, presumably because of the positive emotions it generated without the complication of analyzing it and thus interfering with memory formation. Clearly, the role of music listening in learning differs among individuals.

I looked at their song list and found no jazz–all of it was either concert-type music or pop songs.  That is a serious oversight, in my view. What the researchers may have missed is the possible positive effect of the unique rhythms and syncopation of jazz. I am reminded of a study I reported in my book, Memory Power 101, showing that chewing gum helps learning.

I am musically untrained, and maybe my listening to jazz improved my learning in vet school by creating positive emotions. A great deal of research has shown that positive emotions have an indirect enhancing effect on forming memories. Negative emotions impair memory. No solid neuroscience explanation exists, but it is no doubt highly relevant that the same brain structure, the hippocampus, mediates both emotions and memory formation.

Source:

Gold, B. P. et al. (2013) Pleasurable music affects reinforcement learning according to the listener. Frontiers in Psychology. Vol. 4 Article 541.  Doi: 10.3389/fpsyg.2013.00541

In 1913, Ebbinghaus demonstrated that spacing learning out over time creates much more efficient learning than cramming a learning task into a single intense session. Now, a new discovery has been made for a specific spaced-learning strategy that so far is the best of all. In reviewing this new design, Kelley and Whatson (2013) point out experiments showing that this kind of spaced learning is optimal for information encoding and for activation of the genes needed to form long-term memory.

And what is the design? The idea begins with the established notion that a given learning task should be “chunked” so that it can be studied in a short time, on the order say of 20 minutes. What is novel about the new design is that a given chunk is studied three times in a single session, with two intervening “rest” periods of 10 minutes in which there is little mental activity. During the rest periods, physical activity, like shooting hoops or cycling, seem to be ideal. The reason for these intervening rest periods is that thinking about new information or performing mental tasks creates interference with the memory-forming processes already under way.

Of course, like most learning tasks, a single session, even with three repetitions within it, is not likely to be sufficient unless you are really adept at mnemonic techniques (Klemm, 2012). After a day or so, this strategy needs to be repeated one or more times.

This is so simple to do and, if replicated in more studies, should become standard practice in schools. However, very few teachers know about this technique and school curricula are not designed to be taught this way. Changing the educational establishment is probably too much to hope for. But this strategy can be used by all students in homework study. Home schoolers and students taking Internet courses can easily use the technique on their own.

If you try this approach, please add comments to this post to let us know how it works for you.

Kelley, P. and Whatson, T. (2013). Making long-term memories in minutes: a spaced learning pattern from memory research in education. Frontiers in Human Neuroscience. 25 September. Doi: 10.3389/fnhum.2013.00589.

Klemm, W. R. (2012). Memory Power 101. New York: Skyhorse Publishing.

Do you consciously monitor your working memory? That’s the limited-capacity memory you use when looking up a phone number, for example. If you fail to keep the numbers actively in mind while dialing, you may have to look up the number again. In other words, do you check yourself to see if you are still paying attention to what is in your working memory? Is your mind wandering away from what you are trying to hold in working memory? The cure is to deploy your brain’s innate capacity for executive control over working memory.

For more complicated memory chores than dialing a phone number, are you consciously aware of updating what is in your working memory at a given moment with new information? Do you think about being able to recall information you have just received—as when you are reading? Or do you ever willfully suppress what is in your working memory—as for example, expunging an unpleasant thought.

These questions deal with how well you are consciously aware of the likelihood you can recall what you are experiencing. I suspect that most of us exert some conscious executive control over working memory, but not nearly as efficiently as we could or should. Does it matter? Well yes, because controlling what is in your working memory affects the ongoing thought processes that are using the information that is in working memory. Moreover, how well you monitor your working memory affects how well the information registers in your brain and how well it can become consolidated into a more lasting memory.

I explain the consolidation process and ways to enhance it in my book, Memory Power 101.

Executive control of memory is relatively new in memory research, but one group reports studies suggesting that such research will prove fruitful. A year or so ago, this group’s poster presentation at the Society of Neuroscience meeting intrigued me, and I am delighted that the work has now been formally published.

One of their experiments evaluated listeners’ ability to monitor their moment-to-moment working memory storage capacity as new information arrived. As they listened to recorded word lists, experimenters told the subjects to pause the input at the maximum point that would still allow them for perfect real-time memory recall. That is, they pressed a key to pause the input of words in the list at the latest point at which they believe they would have perfect recall. Interestingly, all subjects paused the recording consistent with their known working memory span, as had been determined in pre-experiment testing. In a follow-up experiment, experimenters reduced the sound volume of the word list so that more effort had to be exerted to perform the task. Under these conditions, subjects were much less accurate in matching their listening to their natural working memory capacity and thus their learning was not optimal.

Obviously, such results suggest that making tasks more difficult can degrade thinking and learning. Teachers and professors who speak softly or with foreign accents should take note. Whatever benefit accrues from the challenge to pay better attention under difficult situations is offset by limitations in working memory storage capacity. Examples of degrading influences in addition to sound volume in listening to information include:

Listening is made more difficult by:

·         Extraneous noise

·         Unfamiliar speech accents

·         Speaking too rapidly

·         Speaking too softly

·         Simultaneous presence of visual stimuli that conflict or distract

·         Irritating or distracting mannerisms of the speaker

Reading is made more difficult by:

·         Font and page design selection

·         Convoluted syntax, awkward sentence structure

·         Unfamiliar vocabulary

·         Distracting visuals

·         Wordiness, poor grammar

·         Poor reading technique (tracking with finger movements, random eye fixations, small fixation span (a few letters or one word at a time)

In all situations, an important factor is whether the listener or reader has control over the speed of information presentation. Thinking and learning are compromised if a person has no control over chunking of information input and matching the input to their working memory storage capacity.

Another factor, not considered in this study, is the likelihood that people differ significantly in conscious executive control capability. We know, for example, that some people can hold focus much better than others can, and this certainly affects their ability to optimize working memory storage of information input.

Can working memory executive control be trained? There are already effective training protocols for expanding working memory capacity (as in the number of items you can hold in working memory). I suspect that we will soon see training programs to enhance executive control of working memory.

To summarize, you can optimize thinking and learning by willfully controlling the ease and convenience of information input as well as by how well you have developed a habit of conscious executive control.

Source:

Amichetti, N. M., Stanley, R. S., White, A. G., and Wingfield, A. (2013). Monitoring the capacity of working memory: executive control and effects of listing effort. Mem. Cogn. DOI: 10.3758/s113421-013-0302=0