Wednesday, February 19, 2014

Short Term vs Long Term Memory

Every semester there are thousands of students preparing for their final exams shortly before escaping for a long-awaited break.  Although they had seen the material being presented in class throughout the semester, when it comes time to be tested on that material, giving the correct answers can be a challenge.

From a cognitive viewpoint, the students had all interred the material into their long term memory when it had been first presented.  But to be able to test well on the material, it has to be moved into short term memory for immediate access.  Without an intuitive understanding of that material however, that move from long to short is difficult.  The more a student truly understand their course material, the easier it is for it to move into short term memory.

Figure 1: Short Term Memory at a certain time, (t).


After the exam, all of that material is generally leaked slowly out of short term memory unless it is periodically used to keep it immediate.  However, once in short term memory implies that it is possible to reinter the material back into short term even if it had been leaked out.  Hence, it is fine for students to 'forget' their material after an exam.  Since now, it will be possible if necessary, for a student to recall that material with ease.

One reference appoints the above notions as Long Term Memory (LTM) and Working Memory (WM) instead of Short-Term Memory.  In that study, their results indicate that LTM and WM are indeed distinct but related constructs [1].

References:
[1] Nash Unsworth.   On the division of working memory and long-term memory and their relation to intelligence: A latent variable approach.  Acta Psychologica, 2010.   Available at http://maidlab.uoregon.edu/PDFs/Unsworth(2010)Acta.pdf.


Friday, January 10, 2014

Containers and Creators

Deep Thought took 7.5 million years to find out the answer to life's ultimate question.  I'll solve it in fewer than 30 minutes.  Attempt to.  Key words appended to this paragraph after 30 minutes had passed.

If we think about life and its origins, it becomes invariably evident that life had to begin at the hands of another.  But this statement as an answer leaves only more questions.  What of the hands of the other?  To date, all religion and faith yields the same unclosed box surrounding the circumstances of life.

Even the Simulation Theory, which states that we are merely a computer program built by the hands of geniuses outside of our box - does not completely close our box of questions.  We then need to ask the question of closing their box instead.  After all, if God created us, then where did God come from?

The closing of the box inevitably begs the curious circumstance of total emptiness at some point in history.  At some point, something existed out of the nothingness.  At that point, two key elements came into question: the creator element and the container element.

In general, our faith has us believe in some super-creator.  Whether this is Simulation Theory or Catholicism, we all invariably place our faith in some super-creator: God, or a genius programmer of sorts.  Thus, the creator is God, and the container is our universe.  As a sizeable creation, our universe has come far in its relative youth, and yet still we have barely even managed to scrape close-encounters to mere fractions of maximum capacities.  Our container is without a doubt, super-huge, and for good reason too.  If our container were ever to be maxed-out, the creator would have a real problem on hand.

But despite such a clear understanding of our box - our container, we have yet to grasp the nature of the container for which the creator lives in.  After all, there are notions of ascension - or descending.  In the Bible, for instance, God supposedly had descended into the body of man - Jesus.  And every one of us are judged at death - and some of us are ascended into heaven.  Ascension is merely the transition from one container to another.  And there may be many containers.  Each of them leave a question to be answered on closure.  For every container had to be created by something outside of it - right?

This description makes it possible that each container is an element of an array.  For instance, the Universe is perhaps, element #43 in the array.  And our creator - God or some genius programmer - is the creator of this container, and who lives in element #42.  Eventually, we harken back to element #0, and wonder who created it.

[Origins, Super-Heaven, Heaven, Universe, Games] is an example of what the array could look like.  We live in the Universe, and we create often, simulations of our own, or play in games online in which you descend into characters stored in servers across the globe.  After you log out, you ascend back into the Universe - back into your real world.  And when you die, perhaps you will ascend back into Heaven, from which you awaken only to have experienced one of the most surreal adventures ever - a game world in which you were tapped into a game-sim of most exquisite nature.  And when you die from the REAL world in Heaven, you ascend into Super-Heaven only to have discovered you have been living your entire life descended into Heaven in yet another game-sim of sorts.  And so on, but eventually, life has to end when you die from the truest of real worlds - the first container element from the array.  Right?

But even still.  Who created the first container element of the array?  Who created the array?  Perhaps the best answer is that none of it truly exists.  But this feels too real, right?  Perhaps, the array is cyclic.  The creator of the Origins container - the first element of the array - is actually the container from the last element in the array - Games.  Is it possible that we, life as we know it, is nothing merely than the result of our descending into and out of worlds?  But still.  Who created the array itself?  What started this vicious cycle in the beginning?

In the end, I believe that our notion on containers and creators is far too specific or far too vague to truly understand the circumstance of life.  The simple truth is that we may never know from being physically coded and instructed not to ever know.  A simple barrier that prevents us from ever understanding and rebelling against the creator.  An elaborate ruse meant to keep us in our place.  After all, what purpose in life would we have if we ever discovered the truth?  Our entire lives have been founded on purpose - if not individually, then surely on the macro level.