Monday, January 13, 2014

What is "Purely Positive" Dog Training?






So much has been written on this subject that I considered simply avoiding it all together. Frankly, I’m bored to death with this debate. It’s an emotionally charged issue and the two sides (balanced trainers vs. purely positive trainers) are about as likely to agree as any other polar opposites, like liberals vs. conservatives.   But I keep getting asked this question so I’ll answer it. 

First let me explain what I’m referring to in case you’ve never heard the terms “balanced” and “purely positive.” 

There are four quadrants in operant conditioning (i.e. the way that animals learn), first systematized by behaviorist B.F. Skinner in the early 20th century. Animals learn from positive reinforcement (aka positive reward), negative reinforcement (aka negative reward), positive punishment (aka positive correction) and negative punishment (aka negative correction). So far, no problem - everyone agrees on what operant conditioning is. 

Where they differ is that balanced trainers use all four quadrants and purely positive trainers use mainly two: positive rewards (like a food treat), and negative corrections (like a time-out or the removal of attention). Sometimes they use the third, negative rewards, but not often. The most important difference is that they do not believe in positive correction.

My opinion – positive rewards are a great way to teach a dog what to do, but they are a bad way to teach a dog what NOT to do. When I see a bad behavior, I prefer to correct it. Correcting bad behavior reduces the likelihood of it recurring. 

When a purely positive trainer sees a bad behavior, they prefer to ignore it and reward (reinforce) the opposite behavior). Here’s a real-life example of the difference between these two dog training philosophies: If I am fostering a dog who decides to put his paws up on the top of my kitchen counter and steal food from it, I will wait for him to do it, catch him in the act, and correct him. If my correction is effective I will only have to do it once, and his counter-surfing days are over for good. But a purely positive trainer would ignore the bad behavior and reward the dog when all 4 paws are on the floor. The problem with that procedure is that counter-surfing, like many other undesirable behaviors, are self-reinforcing. The reward is built into the behavior (in this case, the fun of searching for food, and occasionally being rewarded by stealing some food).  But counter surfing can be a very dangerous – potentially life threatening – habit. If a dog snatches a bottle of medication, a large piece of chocolate, a sharp knife with meat residue on it, etc. he can be seriously injured, maybe even die.

I would rather protect the dog’s safety and hurt his feelings, than the other way around.  And I’m in good company:
Gary Wilkes, DVM, a nationally known veterinarian and advocate of balanced dog training has written extensively on this subject. I came across this recent post where he addressed this very issue:  Positive reinforcement cannot inhibit behavior. If you choose “positive” training you cannot stop anything. The common suggestion of “teach an alternate behavior” is senseless. Learning to ride a horse doesn’t erase your knowledge of riding a bike – no matter who much you are rewarded for riding horses….The claim to be “positive” is a rhetorical tool that allows [purely positive trainers] to fool either themselves or those they wish to persuade. .. All manner of working dogs are trained to dependable performance using a balance of positive and negative…. if using “negative” training is bad, why don’t Seeing Eye dogs look terrified?”

The New York Times obituary of Arthur Haggerty (1932 - 2006), called him “The most famous dog trainer in the United States.” Haggerty had trained more than 100,000 dogs including dogs for more than 450 television commercials and more than 150 feature films. The Times article stated, “Haggerty… had little patience for the New Age dog-training methods of recent years.” In a 2003 Dog World article Haggerty said, “These methods, in which dog trainers...whisper in the dog’s ear kissy face nice and click a clicker, are almost always ineffectual.” In the article Haggerty gave an example using a dog who was nuisance barking. Instead of following complicated protocols he preferred to simply correct a dog for nuisance barking, especially in a case where a renter threatened with eviction might be forced to give up the dog. People needed fast, effective solutions. Correcting the behavior enabled the dog to remain in the home and live, rather than be surrendered to an overcrowded animal shelter and die.  
  
These are only two examples of hundreds of experienced, well known and highly respected professional dog trainers who believe in correcting bad behavior. (The most famous advocate of correction of course, is TV’s Dog Whisperer, Cesar Millan. The “purely positive” crowd doesn’t like Cesar, but millions of dog owners around the world visit his website and read his best-selling books.)
So this debate is sure to continue, but I’ll stick with balanced dog training methods using all four quadrants of operant conditioning. This approach is based on science, not emotion, and it’s what I’ve seen work for thousands of clients over more than 2 decades of professional dog training experience. In contrast, I’ve retrained thousands of dogs whose owners were close to giving up on them when purely positive methods failed miserably. 

One last point: if purely positive training is so great, why aren’t service dogs trained with purely positive methods? Search dogs, military dogs, police patrol dogs and seeing-eye dogs are all trained in balanced training programs, using both rewards and correction, not in purely positive programs.