Archive for the ‘Memory’ Category

I do my best thinking when I sleep … another scientific rationale.

May 17, 2017

 By default, your brain “defragments” when you sleep.

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In a prior post, we reported some scientific evidence that most people really do think when they sleep.

For details, see: I do my best thinking when I’m sleeping … say, what?

Let’s take the science a step further…

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First, an analogy…

Have you ever defragmented your computer’s hard drive?

Just in case your answer is “no” – or, you’ve never heard of defragmentation – here’s a short course:

When you save a file on your computer (think: Word, Powerpoint, Excel), the file isn’t stored in one piece.

Rather, it’s automatically broken into smaller pieces … and each piece is stashed in the first place that the computer finds an open space on the hard drive.

Since the file is stored in scattered pieces, the computer has to reassemble it when you subsequently re-open the file.

That takes time … and slows the process.

There’s a process called “defragmentation” that sorts through a computer’s hard drive, eliminates “dead links” and reassembles “live” files into contiguous pieces … making the save & open processes more efficient.

Well, it turns out that your brain comes with a process analogous to defragmentation … it’s called “synaptic pruning” … and it happens automatically when you sleep.

Here’s how it works …

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Digital amnesia: Is Google dulling your memory?

May 5, 2017

First, some background …

The tests I give my students always include some questions that can reasonably be tagged “memorization”.

Some students are repulsed by them them and shout the cultural refrain: “Don’t memorize anything that you can look up.”

The apparent thinking: You’ve only got a limited amount of space in your brain, so don’t clog it with an overload of information … only store the stuff you can’t look-up.

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What’s wrong with that argument?

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Digital amnesia: Is Google dulling your memory?

February 7, 2017

Don’t memorize anything that you can lookup (<=bad advice!)

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First, some background …

The tests I give my students always include some questions that can reasonably be tagged “memorization”.

Some students are repulsed by them them and shout the cultural refrain: “Don’t memorize anything that you can look up.”

The apparent thinking: You’ve only got a limited amount of space in your brain, so don’t clog it with an overload of information … only store the stuff you can’t look-up.

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What’s wrong with that argument?

(more…)

As if forgetting stuff wasn’t bad enough …

February 6, 2017

Study: Half of people “remember” events that never happened

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According to a recent study, once a person hears that a fictional event happened, there’s a 50/50 chance that they will believe that it took place and start to embellish it with details, even if the imaginary event is of a personal nature.

For example, researchers “primed” subjects with fake (but relatively harmless) memories, such as taking a childhood hot-air balloon ride or pulling a prank on a friend.

Researchers intimated that the imaginary events  were real.

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And, the result …

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Digital amnesia: Is Google dulling your memory?

September 22, 2016

First, some background …

The tests I give my students always include some questions that can reasonably be tagged “memorization”.

Some students are repulsed by them and shout the cultural refrain: “Don’t memorize anything that you can look up.”

The apparent thinking: You’ve only got a limited amount of space in your brain, so don’t clog it with an overload of information … only store the stuff you can’t look-up.

image

What’s wrong with that argument?

(more…)

Digital amnesia: Is Google dulling your memory?

July 1, 2016

First, some background …

The tests I give my students always include some questions that can reasonably be tagged “memorization”.

Some students are repulsed by them them and shout the cultural refrain: “Don’t memorize anything that you can look up.”

The apparent thinking: You’ve only got a limited amount of space in your brain, so don’t clog it with an overload of information … only store the stuff you can’t look-up.

image

What’s wrong with that argument?

(more…)

Digital amnesia: Is Google dulling your memory?

July 7, 2015

First, some background …

The tests I give my students always include some questions that can reasonably be tagged “memorization”.

Some students are repulsed by them them and shout the cultural refrain: “Don’t memorize anything that you can look up.”

The apparent thinking: You’ve only got a limited amount of space in your brain, so don’t clog it with an overload of information … only store the stuff you can’t look-up.

image

What’s wrong with that argument?

(more…)