Taking A Closer Look at Positive Reinforcement
It’s no surprise that we all talk about and use positive reinforcement
in our training to strengthen behaviors we like to make them more likely
to reoccur. More and more trainers are moving towards Positive Reinforcement
techniques in their training to create happier working dogs. The focus
of this article is using positive reinforcement to help increase intensity,
frequency, and duration of behaviors that we want to teach or maintain
in our dogs.
First of all, when we talk about using positive reinforcement in training,
it is important that the dog wants to acquire more of whatever we are using
to motivate him. For example, if you are only using a piece of cheese to
motivate a dog with weak food drive, you may need to up the motivator to
something more interesting to the dog. Often times the handlers THINK the
dog should like the reinforcement, when they could really care less about
it. An example of this is patting the dog on the head for a job well done,
while the dog is squinting his eyes and ducking his head, waiting for his
handler to stop this crazy behavior!
Now that we have our reinforcement chosen we can begin training to make
certain behaviors more intense, occur more frequently, or have a longer
duration. If we look at increasing the intensity of a behavior, we need
to reinforce at the precise moment the dog is displaying the most intensity.
For example, there are many ways to reinforce intense behavior if you are
trying to create a fast recall. One method is to have a helper hold the
dog on a leash while the handler runs away. At the precise moment the dog
pulls hardest against the leash, the helper lets go of the dog reinforcing
the urgency/intensity to get to his handler. The next time you set up this
equation, the dog will start to immediately pull hard into the leash to
get to his handler due to his success the last time he tried that behavior.
In my training I normally work on teaching intensity from the dog first,
but this comes with its own set of problems, especially when you move into
duration behaviors.
When you reinforce for duration of a specific behavior, the behavior must
occur for a specific amount of time before it will be reinforced. In this
example I will use the long down exercise. If we first teach the dog to
intensely go into the down position for reinforcement, you will have some
trouble keeping him in that position when training for duration. The dog
thinks the act of immediately laying down qualifies him for his reinforcement;
once the reinforcement is withheld for a time, the dog will have problems
with the new set of rules. In learning theory, this is called upping the
criteria of a behavior. You will now show the dog that not only does he
have to do it quickly to qualify for reinforcement, but he must also maintain
some duration before the reinforcement is available to him. In order to
keep the behavior under duration, you will slowly shape the duration from
one second to a gradually longer duration. In the long down exercise, this
could be as long as twelve minutes. This way, you will be able to keep your
intensity and duration of the down. Once the behavior is solid, you will
need to reinforce intensity and duration intermittently to make sure that
you keep both intensity and duration of the same behavior.
The last section of this equation is looking at frequency of a behavior.
Here we will use the example of barking in the blind. At first our helpers
want one good intense bark, then they reward with a grip. Next time the
helper will wait for two barks then three then four and so on until we have
good frequency of that behavior. Looking at this one “finished” exercise,
we will ultimately go back and forth and reinforce intensity, frequency
and duration of the bark and hold. If the dog is tired and we want him to
bark a little more intensely, we either wait or help him achieve maximum
intensity and immediately reinforce him for that behavior. If he is not
barking with good frequency, then we must capture the picture of good frequency
and reinforce that behavior. What if he is used to being reinforced for
only six or eight barks? Then we will only reinforce him after ten to fifteen
barks, and so on. As you can see, in just one exercise you can use positive
reinforcement to increase the intensity, frequency, duration or a combination
of all three.
In conclusion, we must look at all areas of positive reinforcement to see
how it will benefit us in our training. In this article we focused on only
three parts of reinforcement, not including schedules of reinforcement,
shaping, chaining…Again, the point is to make you aware of how the
power of positive reinforcement can help us in training. We are always using
it in our training even if we are unaware of it. As a final parting comment,
if all this scientific mumbo jumbo makes no sense, you can always refer
to one principal that NEVER FAILS. “The only thing two dog trainers
can agree on is what the third one is doing wrong!!” Until next time,
happy training.
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