Association: the engine behind memory techniques#

Before we start, a quick exercise. Picture a green cat, the size of a car, rollerblading over the Golden Gate Bridge. Seriously — stop reading, close your eyes, and hold that image for about thirty seconds. We’ll come back to it.

Earlier you saw that memory works like a network: the brain learns new things by tying them to things it already holds, growing fresh connections onto existing ones. That is the whole idea behind association techniques. Instead of fighting your memory, you give it what it wants — a hook into what’s already there. Almost every technique in this section is association wearing a different costume.

Try the creative association exercise . If you’ve just done it, you probably found the list of fifteen items far easier to recall once you’d woven them into a story. You linked each item to the one before, and to actions you already know well — even when the links made no sense. That is association at work.

Why association helps — and where it stops#

The reason a silly green cat sticks is elaboration: when you process material more deeply and connect it to existing knowledge, you remember more of it. This is one of the sturdiest findings in memory research, and it’s why effortful, meaningful encoding beats passive re-reading (Craik & Tulving, 1975). Vivid, multisensory images add a second benefit — you’ve coded the idea as words and a picture, giving recall two routes in instead of one (Paivio, 1986).

I want to be straight about the size of the win, though, because the memory-course industry isn’t. For ordered lists and arbitrary pairings — the planets, a shopping list, foreign vocabulary, a deck of cards — good mnemonics are genuinely dramatic. In one classic comparison, the method of loci and the peg system clearly outperformed rote rehearsal for recalling items in order (Roediger, 1980). Memory athletes lean on exactly these techniques, so with practice you can too.

But mnemonics are a tool for a job, not a cure-all. Reviews of the evidence rate them as having moderate overall utility for students, partly because they shine on remember-this tasks yet do little for genuine understanding — grasping how ideas relate, solving new problems, transferring knowledge (Dunlosky et al., 2013). A peg word will nail the bones of the hand; it won’t teach you how the hand moves. Use association to make facts stick, and use comprehension techniques to make sense of them. The two are partners.

What’s in this section#

We start with the general principles — the features that make an association memorable (the senses, emotion, exaggeration, movement) and the steps for building one. Then the techniques, roughly easiest to most powerful:

• Basic mnemonics — first-letter and acrostic tricks like “Every Good Boy Deserves Fruit”.
• Linked lists — chaining items into a story, and where the chain can break.
• Peg words and peg events — a fixed scaffold for numbers, lists and “remember to do this” reminders.
• Method of loci — the ancient memory palace, still the heavyweight champion for ordered recall.
• Chunking — grouping items to fit working memory.

One word of warning before you spend money. Many of the heavily marketed, expensive memory courses are simply these same techniques in shinier packaging. You’re about to learn them here — so if you’re tempted by a course, check it’s offering something you can’t already get for free.