This blog reflects my views on learning and memory. Typically, I write summaries of research reports that have practical application for everyday memory.I will post only when I find a relevant research paper, so don't expect several posts a week. I recommend that you use RSS feed to be notified of each new post. My Web site: http://thankyoubrain.com. Follow on Twitter @wrklemm Copyright, W. R. Klemm, 2005. All rights reserved.
Thursday, November 19, 2020
Tuesday, November 17, 2020
Sunday, November 15, 2020
Especially Difficult Memorization Tasks. Lesson 13.
Some memory work seems more difficult than others. We have
already covered learning math. Here we will consider such tasks as expanding
vocabulary, learning foreign language, and remembering dates and places, and
music.
Vocabulary
The obviously important factor in thinking is vocabulary
(or, in math, number fluency). Everyday thought is conducted with words. A
limited vocabulary limits the range and rigor of thought. Sadly, young people
generally have limited vocabularies. I see this every year even with
upper-division college students in a course where I require them to write
essays. They frequently use words that don't match the ideas they are trying to
convey and fail to use words precisely. Children who grow up in culturally
deprived homes are handicapped because they are exposed to the limited
vocabularies of their parents. Teachers and parents should make it a point to
expose children to new works and to instill a commitment to using words
precisely.
Research suggests that some review sessions need to be
widely spaced by two months or more from the initial learning. The amount and
spacing of foreign language vocabulary learning has an enormous effect on how
well the material is retained years later.
In one study, 300 English-foreign word pairs were studied with either 13
or 26 relearning review sessions at intervals of 14, 28, or 56 days. Retention
was tested for 1, 2, 3, or 5 years after the end of training. Although longer
intervals between learning a review impaired acquisition slightly, this was
offset by substantially higher long-term retention. Thirteen review sessions spaced at 56 days
yielded retention comparable to 26 sessions spaced at 14 days apart.
One experiment related to flash cards has examined the role
that retrieval had on the ability to recall that same material after a delay of
a week. College students were to learn a list of 40 foreign language vocabulary
word pairs, which were manipulated so that the pairs either remained in the
list (were repeatedly studied) or were dropped from the list once they were
recalled. It is like studying flash cards: one way is to keep studying all the
cards over and over again; the other way is to drop out a card from the stack
every time you correctly recalled what was on the other side of the card.
Number of self-testing events and their spacing are
influenced by the number of retrievals that are correct. It helps to repeat
self-testing on cards already correctly recalled. In one study where students
studied flash cards of 35 Swahili-English word pairs, the students were asked
to practice until they got the vocabulary correct using either the entire stack
or five stacks of seven cards each. Researchers instructed students to study
the flashcards until they had gotten each translation correct either once,
five, or 10 times, before taking a final quiz a week later. Getting the stack
correct five times was three times more effective for the final quiz than
getting the stack correct only once. Also, study of one big stack was better
than five little ones.
A related study examined the correctness effect when
college-aged students were asked to study for a week a pack of 48 paired
Swahili vocabulary words with their English translations. To facilitate
learning, students were taught to use a cue (word, phrase or concept) to link
both words of a pair. Students controlled how many times they felt they needed
to repeat study of a word pair until they reached 1, 3, 6, or 9 correct
retrievals. Immediately after finishing the learning, students gave an
estimated rating of how well they thought they had learned the material. On an
examination given one week later, gains in correct answers were larger with
more correct retrievals during the study period.
Student predicted judgments of their learning are important
in real-world study because such judgments govern how long students will
practice what their assigned learning. Judgment of learning success was found
to depend on the number of self-testing events, their spacing, and the number
of correct retrievals.
Another study established that best learning occurs when
students can correctly recall items multiple times during the initial learning
experience. In that study, students studied 70 Swahili-English word pairs
either 1,3,5,7,8, or 10 times during encoding. For example, a cue and target
pair were initially presented to study for 10 seconds. Then during practice the
cue was presented and learners were given eight seconds to show they could
recall the target. Incorrect recalled targets were given a four-second restudy
opportunity before moving on to the next word pair. Pairs continued to be
rehearsed until they reached the assigned level of correct remembering (1, 2,
3, etc.). The subjects were divided into two groups, one taking an exam within
25 min after study and rehearsal and the other one week later. Results revealed
best final exam performance when the test-item presentation intervals were long
and when the final test occurred 25 min after the study and rehearsal. Almost
none of the word pairs were learned when the learning occurred when the
intervals were short and the final test was delayed for a week. The best final
learning occurred when the initial learning practice retrievals were correct
and when more time elapsed between each recall attempt (6-minute lag versus
1-minute lag).
There are some other general strategies for building vocabulary. I have
a couple of ideas based on memory principles.
Learn
word prefixes and suffixes. Prefixes and suffixes are great aids. “Pre”
suggests before or ahead of time; “ism” suggests a state of being, “re”
suggests back or again, and so on.
Learn
word families. Many words come from the same family. If you know what one
word in the group means, you can get the general idea for the others from the
context in which they are used. The other words will be easier to remember
because they are similar to the word you already know. Here are some word
groups.
despise, despicable, despot,
despotism, despoil
habit, habitat, habitation, habitual,
habitué
jet, jettison, jetstream, jetty, jet
set, jetlag, jetsam
line, liner, lineman, linear, line
drive, line-up
parent, paternal, pater, patriarch,
paternity, patrician, patricide
Create images for strange new
words. Examples:
Gazebo: see yourself staring
(gazing) at the ugliest boy (bo) you ever saw standing in a building that only has a roof, no
walls. Feel disgust.
Adumbrate (meaning incomplete
understanding or explanation): see a “dumb brat” with a dunce cap, sitting in the corner partially hidden by a screen.
Sense the pain he must feel at
being so ostracized and tries to hide.
Daguerreotype (an early photographic
process on metal plate): visualize a picture on a sheet of metal and you have stabbed it with a dagger
because you hate it so much.
Perspicacious (meaning especially
insightful): see yourself working up a sweat (perspire), scratching your head with question
marks around it, then jumping up with a eureka moment
when you realize you figured it out.
Foreign Language
In this globally
interconnected world, many people want to learn a foreign language. In my own
case decades ago, I stumbled through Russian and French because they were
required for my Ph.D. Most recently, I am trying Spanish, because I live in
Texas.
Some things I know that help
learning foreign language is the use of flash cards for vocabulary (using
images, not just the words).
Another thing I know is the value of
strategic approaches and planning. For example, I first have to confront my
negative attitude (negative attitudes impair learning). I have a negative
attitude about the irrational things in language. Take the gender business in
Spanish and many other languages. Why does everything have to have a sex
identification, like male and female endings for inanimate objects? That is
just plain stupid! Irregular verbs are another problem. When I was in high school,
I learned Latin, which wasn’t so bad, because it was a much more orderly
language than the modern languages that “evolved” from it. Latin wasn’t broken.
Why didn’t people leave it alone?
My first strategic realization was
that I had to get over my pique. Who was I punishing with my negative attitude?
Certainly not the people who created the irrationalities in the language. No,
my attitude would be a de-motivator for me to learn. So, I tell myself, “Get
over it.”
Next, I think about some basic
principles that might expedite my learning. You don’t have to be a professor of
modern languages to know that certain key components in language include the
following:
1. Meaning of words.
Here, try to recognize cognates (words similar to English words you already know.
For other words, try to think of mental images that represent the meaning.
2. Gender identification.
Fortunately, you can usually predict whether a word is male or female just from
the meaning of the word. Most macho-type words are male; soft, feminine type
words are usually female. Unfortunately, there are exceptions, which you just
have to memorize by brute force.
3. Verb conjugation.
Look for patterns. All “regular” verbs have the same pattern. In Spanish, all
verbs end in AR, ER, or IR. The conjugation pattern is similar. For each, you
drop the infinitive ending and add endings to the stem of the word. For AR
words, the ending is either o, as, a (singular) or amos, ais, or an (plural).
For ER words, the endings are o, es, e (singular) or emos, eis, en (plural).
For IR words, the endings are o, es, e (singular), or imos, is, en (plural).
Even irregular verbs have generally predictable patterns, except for a couple
of endings.
4. Counting. Here,
again, look for patterns. In Spanish you have to brute-force memorize the first
19 numbers, but thereafter predictable patterns emerge.
5. Articles, like “a,” and “the.”
In Spanish, you only have to remember “un” for “a.” But, since the article has
to be a gender match to the word it refers to, you have to add an “a” (una) to
refer to female words. If you are referring to a definite person, you must use
“el” or “la,” depending on the person’s gender. Plural references add an “s”
(as in “los/las”)
Pronouns, like I,
you, he, etc. In Spanish, there is a definite pattern that includes gender
recognition and singular vs. plural. It becomes easier to remember if you
organize words in a table.
|
Female |
Male |
Male or Male/? |
This That These Those |
esta esa estas esás |
esto or este eso or ese |
estos esos |
Well, you may not want to learn Spanish, so I won’t expand further. My
point here is that learning is greatly facilitated when you look for patterns.
Memorize the patterns, and it is easier to memorize the specifics.
The point is this: structure your
learning material in ways that work best for you. Develop a strategy. Look for
patterns. A strategic approach should also include developing ways to
categorize things in the most useful way for memorization.
Dates and Places
There is a number coding system that makes it easier to
remember numbers. This is especially useful for remembering dates. The code is
as follows:
The principle is to
first convert an integer (0 through 9) to a letter that is a consonant. Then
insert vowels between the consonants to create a word that can be imaged. Words
are constructed by insert vowels, which are neutral and do not affect the
scheme. Think of vowels as wildcards. So, in the example above, 44 stands for
“rower,” with the word constructed by inserting appropriate vowels between the
two r’s that represent number four.
A set of rules
determines how to construct number-associated images. The rules dictate what
letters and sounds go with numbers 1 through 0, as follows:
Number — Letter or Sound — Mnemonic Aid
1 — t or d — each
letter has one down stroke
2 — n or kg/gn —
two down strokes (kn/gn have same sound)
3 — m — three down
strokes
4 — r — last
letter of word “four”
5 — L — Roman
numeral for the five in 50
6 — j, ch, sh,
soft g — reverse J looks like 6,
7 — k, ck, hard g or c —
attach a flipped 7 to a straight line on its left
8 — f, ph, v — F
joined with another upside down F
9 — p or b — backwards
p or a rotated b look like 9
0 — z, s, soft c —
Z as in zero, soft c as in cent
It may seem like a lot
of trouble to memorize these rules, but once done, it gives you a lot of memory
power. You can construct all sorts of images based on these rules (see
number-image list below for 1 to 100).
The words, all nouns,
that you make up from these consonants can be a single word that includes all
the consonants or several words that are sequentially linked. The number system
can be useful for long-term remembering of some things, like dates, for
example. If you wanted to remember that the Declaration of Independence was
signed on July 4, 1776, you could build a memorable picture as follows: a
number code for 1776 could be dog (17) and cage (76). Couple this with whatever
image comes to mind for the Declaration, such as the liberty bell. Now picture
your dog sleeping in its cage crate, being awakened by the ringing bell. For
the link to July 4, you might want to add a firecracker image that goes off
after the bell rings, like a Pavlov experiment where the bell rings,
unconditioned firecracker stimulus goes off, and dog responds with jumping
around in his cage.
The other use for this
system is to create an easily remembered peg list. To convert this to a
numbered peg list, you make up words using these rules. For example:
1 tie 2 knee 3 ma (mom) 4 rye 5 law 6 jaw` 7 key 8 ivy 9 bow 10 toes 11 tot 12 tin 13 dam 14 door 15 tail 16 dash (-) 17 tack 18 dove 19 tub 20 nose |
21
nut 22
nun 23
Nero 25
nail 26
nacho 27
neck 28
knife 29
knob 30
mice 31
mat 32
moon 33
mummy 34
mower 35
mule 36
match 37
mug 38
movie 39
mop 40
rice |
41
rat 42
rain 43
ram 44
rower 45
roll 46
roach 47
rock 48
roof 49
rope 50
lace 51
lot 52
lion 53
lime 54
lure 55
lily 56
leash 57
log 58
lava 59
lip 60
cheese |
61
sheet 62
chain 63
jam 64
cherry 65
jail 66
judge 67
check 68
chef 69
ship 70
case 71
cot 72
coin 73
cam 74
car 75
coal 76
cage 77
cake 78
cave 79
cap 80
fez (hat) |
81 foot 82 phone 83 foam 84 fur 85 file 86 fish 87 fog 88 fife 89 fob
(watch fob) 90 bus 91 bar 92 bone 93 bum 94 bear 95 bell89
fob (watch fob) 90 bus 91 bar 92 bone 93 bum 94 bear 95 bell 96 beach 97 book 98 beef 99 pipe 100 daisy |
Although
the list has 100 pegs, they are relatively easy to memorize because they are
constructed by a rule. If you know the rules for converting numbers to letters,
you can even generate your own word peg in case you forget.
There are
even more powerful uses of this code than remember numbers or dates. Suppose
you are trying to memorize a textbook, page by page. Suppose on page 47 (rock)
the page explains alpha rhythms, showing an EEG trace, and pointing out that
they occur mostly when eyes are shut and that alcohol and sedatives lower the
frequency. So, to remember this, you visualize a rock floating on ocean waves
that look like the graphs you saw in the book. You only see this image when you
shut your eyes. Imagine opening your eyes and the rock/wave image goes away.
Shut your eyes, see the rock/waves again. Then imagine drinking a beer, and the
waves get larger and slower (i.e., fewer of them).
You could
go through a whole textbook like this. How would you deal with several textbooks?
This problem, not easily solved, is how to un-remember what is on the pegs.
After all, you use the pegs over and over again for different items. Actually,
this did not seem to be a problem when I was using this system to memorize
magazine content. Clearly, this system works best only for items you just want
to remember for a short while.
Music
Music is hard for
most people to learn. You not only have to memorize the notes, their timing,
and sequence, but you have to train the body parts like fingers, lips, and
tongue to execute the notes.
“You’ve probably heard the old joke:
“How do I get to Carnegie Hall?” “Practice, practice, practice!” Well music
practice does take time, and it’s probably not a satisfying answer for people
looking to learn music quickly. But surely there are techniques and strategies
to expedite the process. Here’s one method I’ve created using related memory
principles:
1. Skim
the whole score to identify hard and easy parts and phrases that repeat. Then
start at the beginning, memorizing in chunks, one or a few bars at a time,
depending on the capacity of your working memory. After memorizing a bar or
phrase, see if you can play it without peeking. Musicians do not learn a new
piece from beginning to end all at once. They often start at the beginning of a
piece and learn a small section until they get it right. Then they learn the
next piece. Then they practice stitching the pieces together. They repeat this
process until they get to the end.
2. Memorize
the mechanical acts needed to play the notes (keys on a piano, valves on a
clarinet, etc.). Learn one hand at a time. Look at the hands and keys while
playing.
3. Play
what you have just memorized from memory and repeat until you feel it is
mastered. Play one hand at a time, then play with both together. Don’t peek at
the score until after you have played the section. Check for any errors in your
recall.
4. Play
the chunk slowly at first, then test the tempo by playing with a metronome.
5. Move
to a different chunk and repeat steps 1-3. Add one bar or phrase at a time.
Mark sections of the score as they are learned.
6. Join
the latest chunk with those previously learned and play from the beginning.
7. In
the next practice session, rehearse what was learned in the previous session
before moving on to new material.
Sources:
Bahrick, H.P., Bahrick, L.E., Bahrick, A.S., & Bahrick,
P.E. (1993). Maintenance of foreign language vocabulary and the spacing effect.
Psychological Science, 4, 316–321.
Klemm, W. R. Memory
Power 101. (New York: Skyhorse).