fun stuff, journal

Working memory workout

This week I am confronting myself! I have a not-so-excellent working memory and I am finally doing something about it.

Working memory is different to long-term (and even short-term) memory for recall. As is described in the book Human Physiology by Lauralee Sherwood, it is like “the erasable blackboard of the mind”. It’s the ability of the brain to contextualise information as it’s coming in, and using that to execute actions immediately/near the same time.

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So for example, I can spout silly trivia I learnt at age 10, such as ‘The longest recorded flight for a chicken was 13 seconds.’ = long term memory 🐔

But if someone was, say, giving instructions prior to starting a complicated board game, the verbal directions do not land well. The explanations go over my head, like a record-setting flying chicken. I have to participate in one/more rounds of the game first, then we are good.

I also misplace my keys a lot.


Thankfully, I have discovered that neuroscientists designed a game for training working memory. The game is called N-back.

Basically, there are squares that pop up in a 3×3, like a budget game of Whack a Mole. Except, instead of hitting garden creatures, you hit a button that says Position Match when a square pops up in the same place twice in a row. ❗️This is N=1. Easy.

But then the level gets harder (N=2), and you press if the squares pop up not consecutively, but only after another square pops up (eg if the third square is a repeat of the first).

N, or the number of squares back that you have to remember, becomes +1 if you get 90% right.

Then you have to throw the audio into the mix because the app shouts random letters at you like an audio alphabet soup – you hit Sound Match if it repeated itself too.


It sounds confusing because it is.

When I first tried to Google how to play, it made no sense. I thought, great, I can’t work on my working memory because my working memory isn’t good enough to understand the instructions.

Eventually I found a good app that came with an explanation, and have been trying it for a few days. My initial sense was overwhelmingly I don’t know what I’m doing after N=2.

But today, I noticed I remembered to do things, such as send a text message when usually I might have forgotten. Yay! Whether this is a coincidence, or an upgrade of some brain software, remains to be seen.

I like this app, because it records stats, but there’s a number of them out there.

Here are some cool papers I read.

The first one I found; How it Helps to Improve Post-error Performance; Supporting article.

My study&work life has had some developments … but no conclusions, so I will tell that story when the time is right.


What’s your go-to piece of trivia? Do you enjoy brain training games? Are you someone who loses their keys, or well organised?