Displaying items by tag: canine
While shaping is usually used to teach a new behavior to a dog, it can also be used to fine tune a behavior or even reshape an old one or parts of a known one. Shaping can be applied to large behavior changes or fine tuning behaviors.
Think of shaping a behavior as a process of revision. Rewriting a book is shaping that book into a different form to a higher degree of detail. For dogs it might be teaching your dog to walk on a loose leash. Heeling is a finer precision of walking on a loose leash.
How do you do this?
1. Select which criteria you want to improve.
Every behavior has more than one part that makes up the whole behavior. This is criteria. Is it timing, movement, speed of response, finesse, accuracy of a behavior? Do trial of 10 repetitions for one behavior. Note your dog’s proficiency in it. Is the whole behavior where you would like it? Is there a part of it you would like to improve? Note which ones your dog needs improvement with. You can shape each of these separately.
2. For each criteria, select for the better responses.
Repeat 10 repetitions and see how many times out of 10 that your dog actually does the criteria to your satisfaction. Is it 5 out of 10? To move to the next level you want it to be at least 8/10.
Dogs are not computers and each time they do a behavior there is variability in how they perform it. A behavior might be harder, longer, more focused, superfluous etc. It is this variability that allows us to shape behaviors.
3. Practice only that part of a behavior you want to improve the criteria, this time clicking/treating only for those behaviors that meet your slightly higher requirements.
So to reshape your dog to be more gentle with his teeth (and more aware that there are toes under your sock) focus on the first part of the pull only. Maybe in 10 repetitions, your dog grabs your sock roughly 4 times and slightly more gently 6 times before pulling it all the way off. Click only the more gentle grabs and he need not pull the sock all the way off. Keep practicing until you notice that your dog is able to offer the gentler grabs 8/10 times.
Tip: If you raise your requirements too fast, your dog will not get c/t and will get frustrated and may quit. You must be observant to ensure that you are raising your criteria at a level appropriate to your dog's current abilities so she can still have success but start slightly modifying her behavior to match your shaping plans.
Now increase your requirements so this time your dog takes the sock a little more gently 8/10 times (or more). Increase your requirements slightly again. Does he still need more improvement? Keep practicing and increasing his required gentleness and only select those behaviors which are slightly more gentle.
Keep upping the requirements in little steps until your dog is able to offer the behavior you desire consistently. Then add the new criteria as part of the whole behavior.
Placing a coin into a small container is really an exercise in shaping. You need to work on two different shaping criteria separately.
1. Size of object being retrieved and placed.
2. Size of the opening the object is being placed into.
1. Size of object being retrieved and placed.
Start with an object that is comfortable size and familiar to your dog. Practice with this until he is successful 8/20 or more. Then choose a slightly smaller object and practice with that until 8/10 successful. Continue in this vein until your dog is able to pick up and carry very small items such as coins (start with largest coins and work down), a chain of paper clips, a ring etc. If you are introducing a new material to your dog, you may need to do some separate training until your dog is comfortable it before decreasing size of object further-metal is a good example)
2. Size of the opening the object is being placed into.
During a separate training session, start with a laundry basket your dog can easily reach into. Then when he is successful placing objects into that, try a slightly smaller box. Then a smaller one, then a plastic bucket, then a plastic container with a smaller opening. Notice that you are slowly decreasing the size of the target area where your dog drops the object. At some point you will need to switch to smaller and smaller objects so do that training first. Train your way down in size to the narrow-mouthed container.
Now you can combine the criteria to finish with the final behavior-your dog retrieves a coin and places it into a narrow-mouthed jar. Congratulations, you have just shaped two criteria and put them together to get a finished behavior!
Don’t like the way your dog delivers retrieved objects to you? Reshape that end part of the retrieve. Start from where he is at, and determine what criteria you need to work on. Is it how accurately he can target your hand? (see above for process) or that he lets go as soon as he touches your hand with his nose? Work on only that part of the skill before you start adding it to the whole retrieve behavior chain. The dog must earns to push objects into your hand and hold them there until you to give a release cue.
Why do You Retrain Only One Part of a Complicated Behavior?
If you wait until the dog has completed a whole behavior to click, he has no way to know which part of the behavior he did well and which part he did substandard. Was was too boisterous in running to get the object? Was he sloppy in picking it up? Was he slow in returning to you? Did he drop it on the floor at your feet? Because there are so many parts to a behavior, you really need to zero in on the part that he is not performing as well as you would like. Work on that, then integrate it by chaining it back into the larger behavior.
What Behaviors Do you Want to Improve?
Break them down into their criteria and reshape each part as necessary!
Click here to see a previous post on Shaping. Want Some help with Shaping? Book a web cam session with Donna!
Shaping: The Most Powerful Use of the Clicker
With dogs, shaping can change a dog’s physical behaviors and emotional reactions.
It can even be applied towards changing behaviors and emtions to environments, other dogs, people, animals etc. Control Unleashed by Leslie McDevitt is an awesome training program that shapes your dog feel more relaxed and focused in any setting by shaping a variety of criteria such as stress levels, focus, physical barriers, dog activity levels etc. When they all come together, they result in a calm, focussed dog that is ready to work.
What is Shaping in a Clicker Training context?
Before we can answer that we must understand the three ways of getting behavior.
You can get a behavior by using a treat or toy in smelling distance of your dog and moving it from place to place. Your dog will follow it if he is interested in food. For example, luring a dog from a sit into a down you hold the treat at his nose and draw it down and back between his front legs. Hold it there and his front legs will slide forward so he can reach the treat. Or luring him a round an object or over a jump. Tha danger with this method is that the dog may become too focussed on the lure and not paying attention to what he is doing and/or he may not do the ebahvior without the reawrd. It can be a handy way to jumpstart of behavior if it is needed, as long as the lure is phased out quickly and a hand cue replaces it. Targeting is a form of luring.
2. Capturing a behavior.
Capturing makes use of behaviors that dogs commonly do. The dog lays down and you click the instant his elbows hit the ground. I think it helps to think of it as taking a picture of a specific behavior (sit, down, scratch nose with paw, look at you, bow on front legs etc). If the click was a camera, you would have a photo of your dog doing the particular behavior when you clicked. Thsi works well for capturing any compete behaviors a dog naturally does: sit, down, yawn, cover his nose etc. Capturing is also an integral part of shaping. Practice this first and it will help you with your timing for shaping.
3. Shaping a Behavior
The dog learns to play a game of "Guess what my trainer wants me to do?" The dog offers various behaviors until he gets a click and reward that says "Yes, you are on the right track!" Yes, most dogs enjoy being shaped especially if their trainer is good at it too!
Think of shaping as capturing a series of behaviors that lead to a final behavior. For our photo analogy, you take video footage of a behavior, a down, and then select out 10 still photos in that sequence that lead to the final behavior. Each of those intermediate behaviors gets captured and rewarded before the dog gets to the final behavior you want.
For example from a sit to a sphynx down, here are the 10 photo stills you would see (and the behaviors you will capture):
Dog is sitting.
The dog leans forward a little. Click/Treat (C/t).
Then he lowers his head a half inch. C/t.
Lowers head 2 inches, C/t.
Lowers head 6 inches.C/t.
Touches nose to ground C/t.
Shifts weight off front legs, C/t.
Shifts front feet forward.C/t.
Pushes front legs forward a little. C/t.
Pushes front legs out in front alot. C/t.
Places elbows on ground. Jackpot reward!
When you are shaping, your job is to capture your dog doing each of these between and mark the exact moment that he does them- in a progressive order so he can successfully complete the down.
Tip: The important thing is that you click when the dog is moving, not when he is still.
You will need to anticipate his behavior a little as well as observe his behavior closely. Your dog doesn't know you want him to go down, he only knows that if he keeps offering behaviors in the direction of a down, he gets rewarded. A light bulb may go on in his head and he offers exactly what you want. He then may offer several previous behaviors, then the behavior again just to test to see if THAT was what you really wanted.
You need to be aware that he may skip some steps, combine behaviors, add some extra ones in or do something other than what you thought he would do, and you need to be prepared for all these possibilities. That's what makes it so powerful! This irregularity in what the dog offers is what allows you to capture some simple offered behaviors and shape them into really unique and useful finished behaviors!
Shaping is the most powerful use of the click and treat training technique. Your dog remembers the new behavior because he has physically worked his way through it step by step.
Here’s a Human Example:
When you follow someone else in a car to their home where you have never been before, can you find your way back at a later date? Do you even know where you are?
Contrast that with navigating your own way to their house. Could you find your way there again?
In the first example, you are so busy just following the other car that you are missing important landmarks, maybe street names and not able to see the bigger picture of where you are going. When you navigate on your own, you are not only noticing but are actively using the landmarks and have a broader understanding of where you are going.
Dogs Shape Us all the Time!
Our dogs know shaping is powerful because they use it on us all the time! How do you think your dog ended up on your lap while you type on the computer?
With no comfy dog beds in sight, the behavior likely started by him noticing one hand on your lap and him coming over to investigate it. A simple nose touch and he gets a scratch on the head. After a few times of that, the chin is cautiously placed on your lap. That too gets a warm hand tousling his silky fur. Next, he ventures a paw up on the chair and waits to see what reaction he gets. A gentle push off reinforces that (he IS getting touched) so he tries it again. Now he’s standing with both paws on the chair edge and his bright eyes are staring into yours. A slight push with his back legs is all he needs to get all four feet standing in your lap and it’s a short step to settling in and becoming a lap warmer. So, can you turn the tables and shape your dog to what you want him to?
Benefits of Shaping
Using shaping instead of luring or targeting allows your dog to explore new behaviors in little steps (he gets rewarded at each step in the development of the new behavior) and he is actually thinking about his behavior instead of just following a lure or target.
Another benefit is that shaping is often physically easier on the human. The trainer gets to stand or sit still. No more running with the dog back and forth luring him into place (and getting dizzy in the meantime. etc) to get the repetitions needed for him to learn the new behavior. Instead, he learns how to interact with an object or place and also learns to work at a distance from you.
Once both of you have some experience with shaping, you will be able to take him to a new environment and teach him a complicated behavior in a much shorter period of time than it would take with traditional methods. One trainer attended a Rally Obedience trail and noticed that because of the small size of the field, and the fact that the fencing was presented right in front of the dogs at the end of the course, dogs were moving out of heel position and away from their handlers because they didn’t want to run face into that fence.
One shaping savvy competitor noticed this and took 5 minutes to take her dog aside, clicked/treated him to interact safely with the fence, and quickly reshaped a heel almost right into the fence. Hers was the only dog in that trial that successfully qualified that course!
Another trainer (Sue Ailsby) used shaping to teach her dog the basic skills of some pretty complicated behaviors such as fly ball, search and rescue etc during a conference. Everyone was astounded at how quickly her dog learned. It was simply a factor of her and her dog having good teamwork skills, having some previous knoweldge of basic behaviors and using shaping to get the desired behaviors!
Dogs Enjoy Being Shaped
Once they understand how to play, and have several behaviors to offer you, dogs love the shaping game and willingly offer new behaviors. “Will THIS get me a click? How about this? Maybe this!” By marking and rewarding the tiny increments that lead to the final behavior, your dog more quickly understands what is being asked of him, just as you succumbed to his sitting on your lap.
The Challenge of Shaping
Here’s the tough parts of shaping and why some people balk at it or take a long time to get around to learning how to use it:
Shaping can be a conceptually difficult thing for trainers to understand and learn. There are few people willing to show you how to do it and so most people are self-taught.
You must be willing to develop your observation skills to see really subtle behaviors. Most people like to group things into pieces to help them understand (called lumping behaviors). With shaping, you need to think in smaller pieces (called splitting behaviors).
The saying “Yard by Yard Life is Hard, Inch by Inch, It’s a Cinch” is so very true in shaping! If your dog does not understand a chunk of a behavior (lump), you must break it down into its simpler form (split) so he can successfully achieve each of say 4 steps instead of one bigger one. Or that same behavior might need to be divided into 10 steps instead of 4. (finer splitting)
Once you understand shaping, you can apply it to teach other dogs, animals and even people how to learn a new behavior or reshape an existing one. A very useful skill!
See the next blog post on this topic: Object-based Shaping!