Memory Training
(Note - this is an excellent summary of memory games from a
March 24, 2016 New York Times article. Please keep in mind that, despite what
the author says, many researchers are now saying the memory training helps
memory in all areas of life)
An Ancient and Proven Way to Improve Memorization:
Go
Ahead and Try It
Austin Frakt
MARCH 24, 2016
In January, I devoted every walk from my home to the train
to the contemplation of work details, hoping to improve my recall of them. That
was my New Year’s resolution, and so far I’ve stuck to it.
In every one of those walks I was also retracing a memorization
technique known to the ancients and shown by modern science to be highly
effective.
The “Rhetorica ad Herennium,” written in
the 80s B.C. by an unknown author, is the first known text on the art
of memorization. (It’s also the oldest surviving Latin book on rhetoric.) It
teaches the “method of loci,” also known as the “memory palace.” As its names
suggest, the approach involves associating the ideas or objects to be memorized
with memorable scenes imagined to be at well-known locations (“loci”), like
one’s house (“palace”) or along a familiar walking route.
You can test the method for yourself. If you’re like most
people, you would not easily commit to long-term memory a 10-item shopping
list. But I bet you could remember it — and for more than a few minutes — if
you first visualized it along a walk through your house: The entryway of your
house is festooned with toilet paper; your kitchen sink is full
of lobsters, dancing; a bathtub-size stick of butter melts on
your dining room table; your family is singing karaoke in a swimming pool
of hummus in your living room; your hallway is so full
of grapes you cannot avoid crushing them with each step; your
stairway has a runner of lasagna noodles slippery with tomato
sauce; a mooing cow is being milked in your bedroom; stalks
of corn grow down from the ceiling in the spare bedroom; a crop of
multicolored mushrooms blooms in your shower.
Take a few moments to burn these images and locations into
your mind (adding motion, sounds, smells and tactile sense to your imagined
scenes helps). We’ll test your memory with an imaginary trip to the grocery
store at the end of this article. [Note - you're much more likely to pass the
"memory test" at the end of the article if you take enough time
with each image in the previous paragraph to visualize it as vividly as you
can]
Joshua Foer wrote a book about how he trained
to win the United States Memory Championship. He points out that we’re so good
at forming mental maps and recalling images that we hardly notice it. Recall
the last party you attended at a home you had not previously visited.
Though you probably only walked through the house a few
times, you can probably remember most or all of its layout and location of
major furniture. Anything else distinctive you saw — like unusual or appealing
pieces of art, vivid wall colors — and the faces of people you met are probably
also easy to recall. Effortlessly, you retained hundreds or thousands of visual
memories and spatial details.
Research backs this up. After people viewed thousands of
images for a few seconds each, studies found that, on average, they
could correctly distinguish over 80 percent of them from images they had not
seen. This remained true even when the comparison images were of the same
object in a slightly different position (like the same cabinet open versus
closed or the same telephone at a different angle). Another
study found people could usually recall objects they’d seen even after
seeing hundreds of intervening ones, demonstrating that visual memories of
objects are stored long-term.
It makes sense, then, that numerous studies, extending
back decades, show that the method of loci improves memory.
Using the approach, people who could remember only a handful of numbers
— seven is the norm, give or take a few — were trained to recall 80
to 90.
Another study found that the method doubled the
proportion of people who could remember at least 11 of 12 grocery list
items. Students who applied it in an undergraduate economics
course outperformed those who did noton an exam. Medical
students who used the method of loci to study the endocrine system learned
more than those who did not.
Patients who have had treatments known to impair recall and
cognitive function — like coronary bypass surgery and surgery
and chemotherapy for breast cancer — improved their memories with the
method of loci. As a memory aid, it’s superior to rote memorization and converting
items to images alone. Placing those images in a memory palace helps
recall.
Before books were common, the method of loci helped lawyers
and others retain and recall information necessary for their jobs. The locution
“in the first place” is a holdover from this ancient method of
memorizing speeches. It works because it harnesses humans’ evolved
skill at remembering details of locations, which helped hunter-gatherers
recall what was edible and where to find it, and what was poisonous and how to
avoid it.
It does not take an extraordinary mind to develop an
extraordinary memory. Competitors in memory championships or those seen on
Fox’s “Superhuman” — memory athletes — weren’t born with photographic
memories. They have practiced for years using the method of loci,
supercharged with other mnemonic methods. With them, some can
memorize hundreds of random numbers in a few minutes or the order of cards
in a deck in tens of seconds. But, as Mr. Foer learned, memory athletes’ memories
excel only in areas they’ve trained — they still misplace their keys like the
rest of us.
Indeed, science shows that these are normal
minds after extraordinary training — the same hardware running different
software. Brain anatomy of memory athletes and those without exceptional
memories are the same. Because they have trained specifically to recall
numbers and faces, memory athletes outperform others in doing so. But
recall of magnified images of snow crystals — for which memory athletes have
not trained — is identical. After observing a game for five or 10 seconds,
master chess players can recall the positions of nearly all the pieces. A
novice can recall only a few. The difference is training, not exceptional
memory. Shown a random configuration of pieces that could not arise in a game,
chess masters are no better than novices at piece position recall.
My commute has become my memory palace, not for groceries,
but for aspects of my work. Features of certain landmarks — specific houses and
parks I pass — have become loci for them, converted to images and scenes of my
own invention. I figuratively walk through my work as I literally walk to it.
For example, I associated an analysis of the time patients wait for care with
cars waiting at an intersection I cross.
We think memorizing is laborious, boring
work because we’ve been taught to do it by rote. You may recall, as I do,
countless hours in third grade poring over multiplication tables or, in ninth
grade, endlessly conjugating French (or Spanish) verbs, or in 11th grade,
incessantly reciting Macbeth’s “Tomorrow, and tomorrow, and tomorrow” soliloquy
in the attempt to firmly place them in long-term memory. These brute-force
approaches are dull because they’re devoid of any creativity.
In contrast, the best memorizers place the most flamboyant,
bizarre, crude and lewd images and scenes (and their actions) in their memory
palaces. The more distinctive, the more easily they’re recalled. This is
why the Puritans recoiled from the method of loci — they knew students
were relying on “impure” and idolatrous imagery — and it fell out of favor as
an educational tool. Today our memories are eroded by external memory devices
like cellphone cameras and apps.
Now, about that grocery list. In your mind, enter and walk
back through your house. What do you see? Can you get all 10 items?