Reinforcers

In one of the first days of September 1996, Karen, a new teacher assigned to work with my son was heartbroken.  She cried! According to what she told her fellow teachers, she felt like a failure.  She had worked intensively with Robert for the whole week and the only thing she taught him was to aurally discriminate between two commands: “Touch a cup” or “Touch something else” (I forgot what that “something else” was.  But it was another object.)  Nothing more! She doubted her teaching abilities!

Of course her clinical, PhD level, supervisor explained to her that she managed to teach Robert what other teachers were not able to do for the last 12 months.  That her success was really a huge breakthrough.  For the first time Robert accessed …language.  He understood sounds as words – sounds with meaning.

The question which was never posed loudly but, nonetheless, reminded on everybody’s mind was, “Why was Karen, a person new to ABA and autism with no more than one week of training, able to get results that  her more experienced colleagues could not?  Caroline and Evelyn were both very good at what they were doing.  Caroline in the first half an hour long session with my son transformed this constantly moving  ball of mercury into an attentive preschooler.  She had warm personality and iron will and used them skillfully.  I credit Evelyn with teaching  Robert to imitate other people’s gestures.  She switched from the  least to the most intensive prompting schedule to assure errorless teaching and eliminate “magical” thinking.  That was the first huge breakthrough. There is no doubt that Evelyn and Caroline were great teachers, and yet it was novice, Karen, whom I credit with opening a new world to Robert.  All three teachers used reinforcers. After all, the methods of teaching derived from the principles of Applied Behavior Analysis rely heavily on reinforcers as a way to increase the frequency of the specific behaviors including correct responses to teacher’s directions – and hence – increase learning.   The reinforcers used with Robert were mostly pieces of candies, cookies, or chips.  Access to preferred toy, video, or computer game can also be a reinforcer if it is something a child wants strongly enough to pay for it by following teacher’s instruction.  The ABA crowd believes in power of reinforcers.  And rightly so.  Although not once reliance on reinforcers in teaching has been criticized by humanitarians believing in altruistic motivation of higher ethical standard, there is no doubt that reinforcers are involved in daily lives of each of us.

So Caroline, Evelyn, and Karen used reinforcers – the same M&Ms, potato chips, or sips of grape juice. Moreover they all were teaching using the same format of discrete trails.  The same objects placed in front of Robert and the same short directions, “Touch this, touch that”. The only difference between Karen and Robert’s previous teachers was that Karen couldn’t hide her emotions.  She couldn’t help being happy, really happy (not just showing sort of artificially sounding approval) whenever Robert answered correctly.  She couldn’t help feel hurt when Robert was wrong.  She was new, she was sensitive, she took it personally.

Her reactions were giving Robert directions.  He wanted to avoid Karen being sad, as if the air escaped from her.  He wanted to see Karen’s eyes lighten up.

Of course nobody answered the question this way.  Well, nobody even posed that question.  I came up with this answer after many years of learning about my son, of discarding all the misconceptions that were brought by the diagnosis of autism. It is so easy, when confronted with someone who seems so different, to negate his/her humanity, the ability to be sensitive, observant, and simply… a good human being.

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Teaching as Dismantling

I don’t remember all 12 animals pictured on the wooden pieces of the puzzle.  I  remember only four of them: elephant, giraffe, walrus, and toucan.  I also remember being hot and cold from conflicting emotions.  Robert and I were sitting at the small but heavy, wooden table across from each other. The wooden puzzle was placed on the table.  I held two pieces at a time in my both hands and asked Robert to point to one of the two animals pictured on these pieces.  He did. He did it again.  Every single time he chose correctly the animal I asked for. At that time I believed that Robert didn’t know any words receptively.  And here he responded correctly every  time.  Well, at the beginning I was only asking for an elephant or a giraffe or for another animal while contrasted with an elephant or a giraffe. I could believe that Robert knew those after many trips to the Zoo and some other learning opportunities I provided before.  I could believe that.  I almost did.  But when Robert could differentiate between pictures of a toucan and a walrus I knew something was wrong.  I knew but I still hoped it wasn’t.  So I changed presentation format.  Now, I took two pictures and placed them on the table. I lowered my head. I folded my arms.  I asked the same questions.  Now Robert answers became random.  He didn’t know “walrus”.  He didn’t know “toucan”.  And he didn’t know “elephant” or “giraffe” either.

So why his responses were correct? I knew, I must have done something to direct Robert’s attention toward proper answer.  I still don’t know what it was.  Nobody was there to observe from the side.  Was that slight movement of my arms or my eyes? Was that the  tilting of my head?   I don’t know.

What I, however, realized then was that Robert knew something.  He knew how to read what picture I wanted him to point to.  He knew that from reading cues I was giving him unaware of that fact. He knew something about me, I didn’t know myself.

I also realized that I would have to dismantle his way of reading cues before I could teach him my way (our way) of responding to the environment – physical, acoustic, human.

Seventeen years later I still wonder if that is possible or necessary….

Teaching Out of Autism

So what do you teach a child you don’t know anything about even though he/she is your child? How do you teach someone with whom you cannot communicate?  The insistence on teaching gross motor imitation is one of the best ideas brought by ABA crowd.  A child imitates therapist’s gestures accompanied by a short direction, “Do this” . This installs the idea  that another human being is a source of important cues ( information).  That it is beneficial to look for cues to another human being.  It is very important to state that the goal is not to teach child all the separate movements – touching nose, raising hands, clapping, stumping feet, but to teach imitating what the therapist does in this moment.  It is extremely important distinction.  Robert learned all the movement very quickly, and when he heard his therapist’s making a noise with his mouth (At this time, Robert heard sounds, but not words.), Robert responded with a chain of all previously practiced movements.  He was touching nose, clapping hands, patting his head, and stumping his feet.  He hoped that one of those movements should satisfy his teacher.

Yet there was something I taught Robert even before he started his discrete trails.  I taught him something I believed was easy. Well, It wasn’t!

I tried many things.  Nursery rhymes and finger-plays! Of course I tried that!   Hundred times! Thousand times! Robert liked them.  He was sitting in front of me on a table.  Face to face. He gave me his hands over and over so I could do all the right movements for the spider song and many other songs.  Yet whenever I released his hands from my grasp, his arms froze in the air.  He couldn’t finish one movement by himself.  He waited for me. And of course he didn’t repeat even one word from any of the songs.

What I finally taught Robert somewhere around his third birthday was to string beads.  The beads were large and the string was easy to operate as it resembled shoe lace.  But the teaching wasn’t easy!  Only when I started teaching hand over hand I realized how many complex steps were involved in this activity.

Picking up a bead.

Picking up the string.

Aiming the string at the hole.

Pushing it through.

Letting the string go.

Moving the bead from one hand to another.

Pulling the string from the other side of the bead.

Putting it down and starting over while not letting this one bead slip of the string.

I think I used something which resembled “Forward Chaining” I read about in Foxx’s book on “Increasing Behaviors”.

I did  all the teaching in  a few short sessions spread over one hour.  Each session was approximately 20 second long.  Out of these 20 second at least ten was spent on dealing with wiggly, escaping behaviors of my son.  Robert was sitting at the table.  I was standing behind him, bent over to prevent him from hitting my chin with his head.  Nonetheless, he managed to do just that a few times.  In every session, we worked on just one new step adding it to the previous ones. To be precise, every time, Robert was starting from the beginning and continued until a new step.  When he mastered that step, I finished stringing the bead and we started again after a break.  By the time Robert strung two beads independently, I was exhausted and  depressed.  I doubted if my efforts, my aching chin, and Robert’s clear dislike of the process were worth anything at all. What was the purpose?  To demonstrate that he can learn to do something?

Sadly, yes.  I wanted, I needed to see Robert’s learn.  Learn something.  So he did.  So what?

And then….

Some time later that day, I saw Robert sitting on the floor with a box full of wooden beads stringing them one by one until the string was at least half full!

First independent activity in his life.

First few minutes spent purposefully in an organized way.

The first few minutes I could relax.

I could give Robert a box of beads and go to the bathroom alone!

Priceless!

Learning Robert 2

I noticed that the posts that I wrote first are displayed below those I wrote later.  That wouldn’t be a problem if all the posts were separated essays not connected to each other.  But they are not.  I am describing a process.  It started with an unusual event (a student understood computer voice but not people’s voices).  It lead to formation of two hypothesis explaining the event.  Now I will write about another event that puts different light on the first one  …

In the first week of September 1996 there was a breakthrough.  Robert’s new teacher Karen was able to lead Robert to mastering auditory discrimination between two labels “touch cup”, “touch spoon”.  Again, I am not sure if those were exactly those two labels.  I think it was a “cup” and something else. Still the important thing was that Robert finally could touch one of two objects at least 80% correctly when asked to do so. 

As soon as I heard about this breakthrough which involved only two labels I took a set of picture cards (Schaffer’s First 100 Words) and spreading randomly 2-5 of them a in front of Robert I asked him to point to the picture representing the object I was naming.  He could point to at least 50 pictures correctly.  So I called the school.  We set a meeting and Robert demonstrated for his teachers and clinical supervisor his ability to label those 50 words.  That was clearly not something they expected.  After all he was hardly able to differentiate between just two of them after almost 12 months of intensive teaching.  And how intensive!  Three times a day, each time consisting of three chains of 10 trails.  “So”, I remember clinical supervisor saying,” Let’s make sure Robert REALLY knows those words.  Lets take three of them: bed, table, and chair and work on them in discrete trails format.”

And work they did.  The teachers worked on these three words every day:  90 times a day posing one of the three demands, “Touch a bed; touch a table; touch a chair.”

Two or three months passed by.   Again I spread 3-6 pictures  in front of Robert and repeated previous routine.  Except that this time I was choosing from two sets of Schaffer’s cards – 200 total.  Robert pointed correctly to at least 100 of them.  Just to clarify.  I asked for the same picture a few times demanding that Robert chooses it from different groups of pictures.  He KNEW 100+ words.

But there were three words that proved to be extremely confusing for Robert.  He was aiming his hands at them and moving it quickly back or redirecting for something else.  He looked at me trying to deduce from my face or my body language if he made a right choice.  He clearly was not sure what he was supposed to point to.  He knew 50 new words as compared to the previous informal evaluation, but he didn’t know bed, table and chair. He didn’t know the words he was so intensively taught.

This development lead me to a new hypothesis on Robert’s ability to learn from computer program and not from his teachers (or me).  It was the method of teaching that inhibited his learning. Constant repetitions, even if he answered correctly installed doubt in Robert’s mind as to what the answers should be.  Teacher was asking over and over for one of three items, no matter if Robert’s reply was correct or not.  Forget reinforcers – candies, chips, or sips of juice.  They didn’t lead Robert anywhere.  They were not cues for him.  The cue was that he was asked again and again.  That cue meant that he was wrong over and over.

I wonder what would happen if I didn’t check Robert’s receptive vocabulary at home.  If I didn’t realized that he unlearned things he was taught and learned things he wasn’t taught formally. Would his teachers ever doubted the method?  Probably not.  They were recording dutifully each single answer.  They might do some scientifically looking graphs. That would not bring them closer to the general facts about Robert’s learning. About what he knows and what he doesn’t.

The explanation of what makes me go on and on in teaching Robert those things that other people consider ridiculous given his IQ comes from the second conclusion: I also do not believe that Robert learned all those 50 words in a few days after “breakthrough” I think he knew them long before he was able to DEMONSTRATE his knowledge.

So, there must be a phase when Robert “knows” but cannot communicate his understanding or retention of information.

But that is again another story.

Learning Robert

The question I posed had many answers.  The first was that Robert must have memorized the order in which the program presented the pictures.  According to this theory Robert responded to the complex pattern of visual stimuli.  He was still not given credit for ability to discriminate aurally between labels.  It has to be said that as long as I remember Robert always had an ability to discriminate aurally between specific sounds.  What he didn’t have was to understand sounds as communication tools. So Evelyn, one of the teachers, spent some time on the computer program trying to figure out the pattern of presentation.  She didn’t discover any. The second theory was that Robert’s ability to discriminate among sounds was much sharper than in typically developing children and thus he couldn’t generalize into one “word”  differently sounding utterances.  Whenever someone said a word, the same word, for Robert, according to that theory, it presented itself as different sound.  Different in pitch, length, volume, accent, and whatever else can be different.  That faulty, human pronunciation was contrasted with a consistent computer voice that was providing directions in exactly the same manner.  That theory was consistent with my observation of Robert’s ability to discriminate among sounds.  For instance he knew (without looking) which car passing outside his apartment belonged to his mother.

As you might have noticed, both theory would opt for Robert having and applying some special skills not observed typically in children. One being ability to memorize complex pattern and second having a hearing too sharp for his own good. I don’t negate a notion that Robert possesses some special skills. Unfortunately, I encounter them often and blame them for most of my difficulties in teaching my son. Still  a few months later, when Robert finally gain some minimal grasp of language as a tool of communication a simpler explanation presented itself.

Teaching Robert First Words

It would be interesting to hear other people explanations of this strange development described bellow.

Robert didn’t have any receptive language for the first 4 years of his life.  He had a few “expressive” sounds – words’ approximations – to ask for things he considered important.  I just remember one: “juice”.  I know he had at least two other, but I don’t remember them now.  Still, for six months before his fourth birthday his ABA teachers/therapists tried to teach Robert to discriminate receptively between two objects. Evelyn and Caroline were doing this through discrete trails format.  They placed two items in front of Robert and asked him to touch either object A or object B.  Thirty times in the session.  Three sessions a day! After correct answer the therapists  gave Robert a piece of cookie or candy, after incorrect answer they didn’t give him anything.  Between two answers the therapists took time to record the replies and the level of prompting.  They also moved the two objects  either putting them back in the same spots or changing their positions.   They did it for six months from September of 1995 till end of February of 1996 but Robert seemed oblivious to their demands.  He couldn’t pass through the threshold of 80% correct answers. So the therapists kept on repeating the task and Robert kept on failing it.   At first I was teaching Robert in the same way. Soon, however,  I became concerned that because my  foreign accent differed from the correct American pronunciation of the teachers, I might confuse Robert  and inhibit his learning.  So I stopped.

Nonetheless, during this time we purchased relatively simple computer program First Words I.  The program was similar to discrete trails in its approach to teaching receptive labeling. It showed two pictures (later three, if I remember correctly) and asked the student to touch one of them.

But there were differences.  The program didn’t show the same pictures again and again for 10 or 30 times.  After each answer, correct or incorrect, the screen produced two new pictures.  Moreover, for the same word , for instance: “table”, it switched between two different images of the object.  As you might guess, the program didn’t feed Robert any cookies or candies but instead displayed a happily jumping icon after correct answer and highlighted the proper picture after wrong answer.  And soon Robert, working mostly independently, taught himself receptive labeling off all 50 words in this program.   For the six next months he was demonstrating ability to respond to computer’s voice and continued to learn from next level First Words II .  I am not sure if he was also learning from the  First Verbs during that time, although we bought that program as well. Yet, he still couldn’t differentiate between ANY two objects when his therapists/parents ask him to.

That lasted for another six months – from March to  September of 1996.

This phenomenon forced Robert’s therapists and PhD level supervisors to come with different hypothesis as to its cause..

What hypothesis could that be?

Teaching Robert 3

There is a danger of imposing our ways of teaching on the student without understanding what the student already knows and how he/she knows it.  This might result in the “object” of our educational efforts to loose what he/she had known  before we started to push our knowledge on him/her and  not grasping our “ways” of doing things.  For instance, there are few approaches to teaching a child to subtract large numbers with regrouping.  One is to just go one step at a time as needed.  To take one out of tens place and change it into ten ones and so on.  The other is to analyze the whole minuend and do all the regrouping at once before subtraction.  This is what my son attempted to do while working with me.  Except I didn’t grasp that fact and consequently I tried to stop him every time he was trying to do just that. I “made” him to subtract the way I was teaching him.   Since he couldn’t explain to me what was his method he ended up confused and I had much harder job of teaching him “my way” than I would have if I understood his approach.

Those problems are, in my opinion, very frequent.  They do not apply exclusively to children with special needs.  They are frequent in education of typical children and result in reduced performance on tests and maybe later in life.  It is an imperative that teachers realize that what children know and how they know it might affect the results of teaching.

Those problems, however, have much more serious consequences in education of children with special needs as it is much harder to understand what the students know already and HOW they know it.

This post refers to my latest observations.  Observations I made not only of Robert’s difficulties in learning, but also of my arrogant attitudes toward teaching. These attitudes  do not give “an object” of my endeavors any credit for thinking independently.  And consequently they lead to learned helplessness.  The child stops trusting his own thinking and continues to look for clues in the environment. And those clues might be very misleading.

Teaching Robert 2

I don’t know if any new mother or a mother to a freshly delivered child is consciously aware of the teaching curricula she supposed to pursue while bringing up her offspring.  There is an abundance of  songs, toys, nursery rhymes, and of  silly gestures and sounds the mother can choose from and she does so  haphazardly; more in accordance with her hormones (or heart if you prefer ) than with her analytical mind.  It is not that I consider caring for a newborn, toddler, or preschooler a brainless job. Yet it is an endeavor much more intuitive than for instance preparing your teenager for college by suggesting courses, helping with application, and paying for SAT preparation programs.

And so I too dipped into the bank of culturally established behaviors,  overused nursery rhymes and warehouse of colored, plastic toys.

And nothing seemed to work.

So I  looked to others for help, for instructions, definitions, explanations, and directions.  I search for specialists with expertise in rearing children like mine.

I have to leave that thread unfinished, promising to return to it later.  Finding specialists is much more complicated than it seems. That is a topic which requires not just its own paragraph, but its own chapter.

I approached Early Intervention Program in my town.  Once a week a young woman who reminded me of sloth with slow moving, sleepy approach to her work (and maybe her life as well) was coming for…. well, I really don’t know for what.

To help me find medical specialists in a state to which we just moved in?  Well, I found all of them and went to first appointments before she even took all the intake information.

To tickle my son?  Well, she did that.  And yes, he liked it.

I  don’t know if there was any other purpose in her visits.  Still, every time she came she brought the same toy with her. A plastic box with four holes on top surrounded by colorful rings.  With box came a hammer and four colorful balls.  As she was boring herself and me with these pointless visits my son was playing with the toy.  Banging the balls down with a plastic hammer.  On one of those tiresome visits he lost interest.  He was running aimlessly.  He was clearly irritated.  I cut the visit short.

As soon as this young woman left Robert and I went to an educational toy store and I bought the same toy.  After returning home we play with the toy for less than 15 minutes and in that time Robert learned to match by colors.  The strategy was simple.  Whenever he wanted to place red ball in differently colored ring i placed my hand over it and restricted the access.  Only if he matched ball and red ring he could use the hammer.  No more than fifteen minutes!  He generalized this skill to other colors by himself. He matched all four colors perfectly and he generalized this skills to other items and other colors.

It was so simple!  Just give a proper directions, simple cue and Robert learns.

So, why was that young woman unable to teach my son anything?  The simplest answer would be:  she didn’t care.

She was working for Early Intervention but she didn’t care.

And that again is a motive that will repeat itself through my son’s education.  People who do care and people who don’t.

Guess which kind crowds the planet?

Teaching Robert

One day Robert, two years and six months old at that time, wanted a drink.  His small hands were too weak to tilt a full large bottle of Welch’s White Grape Juice to the side to pour the juice into a cup.  As Robert held the heavy bottle in his hands, he tried to move it in all directions.  He noticed that it was much easier to tilt bottle  toward his mouth.  So he did just that.  He pour the juice into his mouth and then discharged it INTO the cup.  After that he drank the juice from the cup.

He did this only once as he must have immediately discovered that he could simply drink straight from the bottle.

This episode happened more than 17 years ago. Yet it demonstrates better than anything else issues that impacted Robert’s development, his learning processes, and his difficulties in life.

Firstly, he solved his problems cleverly.  Because of that one event I always knew that he was smart and capable of learning and thinking.  No matter what his IQ was like and what I was told about his capacity for learning I knew he could learn.

Secondly, I knew that he went through all that trouble without asking for help because he couldn’t ask.  He couldn’t communicate.  I am not sure if  he even had an idea that we, his parents, could be asked to help…

Every day Robert demonstrates to me how much he can learn, how much he can do.

But he still  cannot explain himself.

So I am here to attempt explaining him.

He is unusual human being.  Very much worth knowing.

Maria Hrabowski

Digression

As I am writing this I am tempted to write everything at once.  Many things are connected; influencing each other in positive and negative ways.  This temptation to explain all the connections that span 20 years of my son’s life, can be a huge obstacle to writing.  It might affect clarity. It might end in an impossible to untangle knot. Those thoughts on writing  are there to put me back on track and organize my observations and interpretations of processes to complex to be described in, so called, linear writing.