What is Working Memory? - Definition, Components & Examples

What is Working Memory? - Definition, Components & Examples
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  • 0:02 Short Term Memory
  • 1:13 Working Memory
  • 3:11 Age Related Decline
  • 4:52 Lesson Summary
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Lesson Transcript
Instructor: Devin Kowalczyk

Devin has taught psychology and has a master's degree in clinical forensic psychology. He is working on his PhD.

In this lesson, we will explore what working memory is, how it relates to short term memory and how it works. In addition, we will examine the slow degrade of it as we age.

Short-Term Memory

Let's flash some numbers really quickly on the screen (please see the video at 00:07 to practice this). What was the number in the uppermost right-hand corner?

Most likely, you can remember it, if I asked the question fast enough. However, by now, most of the numbers have faded from your memory. It's like you saw everything and could remember it for half a second, and then it just sort of went away.

Short-term memory is a broad term used to describe ideas and recalled events held in the mind or just off to the side. I've always imagined memory as a desk, with the stuff on the desk currently in your short-term memory. It is either right in front of you or just off to the side. The long-term memory stuff is in the drawers or filing cabinet - there, but a bit more of an effort to collect.

Another term that is sometimes used interchangeably with short-term memory is working memory, which is a theoretical construct where an active idea or memories held briefly in the mind can be manipulated. There is a lot going on in working memory, so let's take a brief look at all the parts to it.

Working Memory

Working memory is sort of a workspace for you to hold ideas in your mind's eye and toy with them. Using our desk metaphor, this would be things right in front of you on the desk. The idea or memory can be actively manipulated or toyed with. I'm currently thinking about this notebook I have sitting on my desk right now. I can pick it up - in my mind - and open it to see the writing on the pages.

Let's go back to breaking down the definition. A theoretical construct means that there is no organic way of saying where or what short-term memory is. The idea that short-term memory exists is not because we found it in someone's brain and pulled it out. Instead, through a series of experiments, psychologists have learned that there exists this extremely brief type of memory in which ideas are held.

Working memory allows for active ideas and memories to be manipulated. Think about a dog, whatever kind of dog you want. Rotate it 360 degrees. Now make it purple and blue. This is active mental manipulation, and it is taking place in your working memory. You pulled up what a dog looks like and are twisting and manipulating it. This one is fairly straightforward.

The last, and one of the most important parts of working memory, is briefness. What was the number in the upper right-hand corner of the first image you saw? What was the number in the center? I would be surprised if you could remember it because working memory is extremely brief, lasting in the order of tenths of a second.

This is why it is sometimes referred to as the visual sketchpad or an audio loop; the information stays as long as it does and then it goes away forever after a few seconds or if you get distracted. That's why people trying to remember phone numbers have to keep saying it; it is in their working memory. One bump, and the number is gone forever.

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