The shoes I wore last summer seem to be about a half-size too big now.
That’s a first.
Someone has posted it on line, so here it is !
Deferred Feedback Sharply Dissociates Implicit and Explicit Category Learning
J. David Smith, Joseph Boomer, Alexandria C. Zakrzewski, Jessica L. Roeder, Barbara A. Church, and F. Gregory Ashby Psychological Science 2014, Vol. 25(2) 447-457
I’ve been mulling this article since the summer of 2014, when it was published. It’s life altering.
Unfortunately, if you’re not in the field, reading the study isn’t easy. The press release is intelligible but brief.
For the moment, the thing to know is that this study probably proves, finally, that we have two separate and distinct learning systems inside our brains.
Psychologists and cognitive scientists have been talking about “dual systems” and “dual systems theory” forever, but no one had nailed it down. Now they have.
The two systems are separate and distinct in the sense that if you turn one system “off” the other still learns. They’re “dissociable.”
And: the 2 systems learn differently.
“Deferred feedback” looks at category-learning, but as far as I can tell these two systems learn everything, including physical skills.
The chart below is correct (I believe), but it says nothing about the relationship between the two learning systems–which no one seems to understand yet.
So, while I’ve put “vocabulary” under explicit learning, I’m fairly sure vocabulary can also be picked up via implicit learning.
And given what I’ve seen in the L2 literature about grammar learning, it seems clear that some explicit learning helps with grammar, too–at least, with the kind of grammar you use in formal writing, as well as with learning the grammar of a second language.
Obviously, no one learns the conversational grammar of his or her native language at school.
In short, the two systems seem both to compete and to support each other in some way no one has worked out.
|Information-integration learning||Rule-based learning|
|“Life” learning||“School” learning|
|Implicit learning: you can’t necessarily put what you’ve learned in words (& if you can, words come to you later)||Explicit learning: you can put what you’ve learned in words|
|Intuition, everyday categories (good versus bad, dog versus cat), social rules, habit||Formal concepts, theories, disciplines, etc.|
|Learns relatively slowly||Learns quickly|
|Can’t learn “offline” (learning stops after a “lesson” is over)||Can learn “offline” (learning continues after a lesson is over)|
|Must have immediate feedback – students must know whether their answer was right or wrong after each answer or no learning occurs||Can learn with delayed feedback – students can get their tests back days later and still learn from their mistakes)|
|Can learn several things at the same time (e.g.: can learn the orientation and the width of a stimulus)||Can learn just one thing at a time (can learn the orientation or the width of a stimulus, but not both at the same time)|
From the abstract:
Deferred reinforcement qualitatively eliminated implicit, information-integration category learning. It left intact explicit, rule-based category learning.
In case you’re wondering, I heard “Laurel.”
Then I walked across the room and heard Yanny.
Implicit learning (“information integration” learning) requires immediate feedback. You can’t do 10 items then find out which ones you got wrong. You have to do one at a time.
Speaking of immediate feedback, this is the most important research on learning I’ve ever read.
Very exciting !
I’m going to pour myself a glass of wine and watch.
Doug left this link to a post on the difficulty of searching Google when you don’t know what the thing you’re looking for is called:
What do you do when you want to look something up but you don’t know what it’s called? Sometimes you can just type what you know into a search engine and it will sort things out for you. I just typed “part of the car that covers the engine” and I got:
Sadly, things are not always this easy. Right now I know what I want to make but I don’t know what to search for. I know what it looks like and how it behaves, but not how it’s created or what you call it. In fact, I can even draw a picture of it. It looks kind of like a stained glass window.
Where college writing is concerned, not knowing the search term is a chronic problem.
It’s a problem because nobody teaches formal grammar any more. When I say “any more,” I mean not since the 1950s, pretty much.
My students have usually heard of “subject,” “predicate,” “noun,” “verb,” and “sentence,” but that’s about it.
So nobody can look anything up. Not on Google, not in a handbook. Especially not a handbook, which, unlike Google, doesn’t try to guess what your question is.
Here’s an example.
In my first semester of teaching, I think it was, I wanted to know which was correct (in formal writing):
Do you mind my sitting here?
Do you mind me sitting here?
I was pretty sure “my” was right, but only because in years gone by I had always said and written “my.” But that was then. In recent years, I had started saying and writing “me,” so I wasn’t sure. (I take the fact that my usage had changed to mean that the rule was changing.)
I had no idea how to look up the answer.
I did know what the word “possessive” meant in the context of grammar, but I didn’t know what a word that ended in “ing” was called.
So I didn’t know to search for “possessives in front of gerunds.”
I eventually figured it out, but it would have been a lot easier if someone had just told me what a gerund was when I was 10.
Vocabulary is a good thing.
People should teach it.
I’ve just skimmed Paul Brians’ page on gerunds and pronouns. I like this:
This is a subtle point, and hard to explain without using the sort of technical language I usually try to avoid; but if you can learn how to precede gerunds with possessive pronouns, your writing will definitely improve in the eyes of many readers.
It’s not wrong to write “do you mind me sitting here?”
But it does sound different from “do you mind my sitting here,” and it makes a different impression.
When you teach writing, part of what you’re doing is giving students the means to control the impression they make.