mudpuppy
Posted : 5/21/2007 2:52:18 PM
What can be counted as a "not correct" marker: "eh-eh", bump with the leash, a frown, a finger tap on the rump? Is a "not correct" marker a correction, and therefore P+? What's the difference between P+ and "aversive"?
A "not correct" marker is just the converse of a clicker-- when a naive dog hears a clicker, for most it's a completely meaningless sound. It has no reward or aversive connotations. You have to teach the dog that a click or verbal marker means "you did it right". Same with a no-reward marker, it's highly neutral, and you have to teach the dog what it means-- try again with a different behavior, not stop acting, but offer a different behavior than the last behavior you tried. This is a pretty sophisticated concept and difficult to teach, which is why you should wait until you have a dog who happily offers MANY different behaviors before attempting to teach it.
All of the examples you cite are +P-- their intent is to stop a behavior and hopefully reduce the frequency of that behavior in future in all contexts. Issuing a "no reward" marker will not reduce the frequency of the marked behavior except in one context.
Example: my dog offers a long string of behavior when he doesn't know what I want. One such behavior is lifting his front paw up. I want to shape him to back up to and put his hind feet up on a step. So we go stand near the step, and he starts offering behaviors. I start out by "no reward" marking anything he does with his front paws and click and reward anything he does with his hind paws.
Two hours later I want to shape him to turn on the light with his front paw. Since the "no reward" marker isn't +P, he happily offers front paw behaviors at our next session, so I can quickly shape him to do so.
If the no reward marker was aversive, +P, a single use of it may have permanently impaired his "offering" of front paw behaviors, and now I'm going to have trouble training him to do anything with his front paws. And you see the slipperly slope I'm heading down, if I go around using a lot of +P eventually he'll have no more behaviors to offer and you get "shut down" dog.