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Discovering Mendota

The Story of Rehearsal

2/28/2015

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Have you ever suddenly had an urge to snack on something from the fridge, then thirty seconds later found yourself staring at the milk wondering what you're doing in front of an open fridge? Or perhaps a friend you see regularly at the gym says hi to you at the grocery store and you wonder why this stranger is so friendly? Despite the number of times you've practiced remembering her face at the gym, the rehearsal does no good when you leave the building. Close the fridge and walk back to where you were and chances are you know exactly what you went to the fridge to get. Study experts recommend having a specific location for learning because certain brain circuits will remember that it's time to fire up and learn something. Similarly, experts recommend doing little besides sleeping in bed because it could damage the association between the bed and the act of sleeping.

These are the things I had in mind when reading p. 92-93 about rehearsal. Half the struggle is storage, but the other half is triggering recall. Pity the student that takes an exam in a room other than where he learned about the concept. The familiar triggers of a full whiteboard, perhaps a live powerpoint screen, paint on the walls, shadows on the desks, and even the feeling of boredom are absent. The blank sheet of paper has no triggers, unless, thank God it's a multiple choice exam! The student might have rehearsed or reviewed the semantic data the night before while sitting in bed wearing cozy pajamas and listening to music. Once he gets back there, he'll probably remember what he studied in that context.

In contrast, it is quite likely that the student will remember clearly every detail of his dreadful experience trying to recall information during the exam. Instead of a random assortment of semantic data, his brain has a clear storyline to rewind, replay, and regret. All the details of location, emotion, time, etc. provide multiple connection points from which the student can recall the experience. This ongoing storyline is always available but we tend to ignore it because we are overwhelmed with so many things besides this storyline. This autobiographical (episodic) memory is tied to "time and place...and gives us a sense of self..." (p.87). Trying to learn semantic ideas by rehearsal is the same as trying to put the same sticker onto multiple points of the timeline. Greater chance of running into one of them if there's several lying around. However, the sticker is more like velcro with only one thread of connection (very likely to fall off before you get back to it).

If there was a way to increase the number of connecting points between a semantic fact (piece of data) by personalizing it or experiencing it somehow, this would create a much deeper episodic memory that might include the semantic detail. As shown later in the chapter, information that has been stored is drawn back into working memory and then changed when we add new information to it. This perhaps is why Dewey argued for the power of learning through experience: because it relies on the episodic memory we've been using since childhood.

I would therefore like to propose that the power of rehearsal can be dramatically improved in both storage and recall if we practice three things. 

  • First, increasing the depth and focus of our observations as happens automatically during adrenalin rushes like in a fight or flight scenario.
  • Second, we intentionally tie these observations to our ongoing episodic memory by remembering our location, feeling, context etc...
  • Third, in order to recall what has been rehearsed we intentionally select one of the preceding factors to trigger the entire episodic storyline where all the information has been stored.
Example: instead of learning  f b d c a e g (letters of the alphabet), we arrange them in a specific order, we make a song out of them, and to remember all of them, we just have to sing the song. If only it was that easy...


Reference:
Sousa, D. (2011). "How the Brain Learns." Unites States: Corwin.


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Music and Memory

2/22/2015

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For a light piece of reading, check out this article at Psychology Today that provides an overview of some effects that music has on the brain.

If you are really feeling like getting into the thick of neuroscience, the process by which the brain encodes memory, and the way in which music or acting can actually impact this process, please click here. The article I read begins on p. 11 and is written by doctor John Jonidas at the University of Michigan. He has done several studies with musicians and actors that demonstrate the impact of the arts on learning. Two studies comparing musicians to non musicians showed that musicians have mastered the process of encoding memory through rehearsal (rote memory) more effectively than non musicians. If they are given the chance to practice, musicians outperform nonmusicians in tests of their memory. However, without the chance to practice, the results are the same. However, a second study showed that the non musicians relied more on their ability to remember through association rather than repetition. A third study of actors showed that they may have mastered the process of memory on a different basis than musicians. Instead of memorizing their lines, they memorize the context of the lines (association) and may even 'remember' lines that weren't originally part of the script. Their brain remembers the big picture, and from that they bring up the specifics.

I found these studies fascinating as I am interested in knowing more about the effect of music on learning. I spent 20 years practicing the piano and still find that sitting down at the keys can help me to organize my thoughts. At some point in the future, I intend to begin studying the science of music and the way it can impact everything from health to mood, to, apparently, memory. For now, I am simply looking for ways to integrate the study of music into the learning experience that I am developing.
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  • About
    • The Philosophy
    • The Business
    • The Founder
  • Services
    • Idea Machine >
      • Technology
    • Publishing >
      • The Choice
      • Charles Heyworth
    • Project Portfolio >
      • The Bonfire!
  • Human-Centered Learning
    • Educational Resources >
      • Learn By Doing: Social Media
      • Diversity Training Proposal
  • Truth IN Seeking
  • Connect
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