everything about your dogs

Showing posts with label dog training. Show all posts
Showing posts with label dog training. Show all posts

Playtime After Training Improves a Dog's Memory

Making time for play immediately after a dog training session improves the dog’s memory.


Science shows play after a dog training session is a good idea; happy Black Lab playing in the snow


New research by Nadja Affenzeller (University of Lincoln) et al investigates whether play following learning leads to better performance the next day. The scientists wanted to know whether this effect, previously found in humans, would also apply to dogs.

In people, it is thought that the hormonal response during positive arousal acts on parts of the brain called the hippocampus and amygdala and leads to better memory. The effect applies to a type of memory called declarative memory, which is our memory for facts and events (for example, the President of the United States, or the capital of Denmark).

Now we can’t expect dogs to tell us who is the President of the United States, but it is possible to get them to do a task very similar to one used in some of the human memory research: learning to tell the difference between two objects.

The results show that the dogs who got to play immediately after learning needed fewer trials in the task the next day, compared to the dogs who had rested instead.

First of all, each dog had a pre-training session, in which the dog was taught to approach an object. In the very early stages, food was placed on the object, and when the dog approached, s/he was allowed to eat it.


For those interested in the food canine scientists use as rewards, it was either a piece of pork or chicken sausage, depending on the dog’s dietary preferences.

In the training session, the dogs were taught to distinguish between two objects and choose the right one by putting their two front paws on a cardboard square on which the object was placed. If they went to the correct object, the researcher clicked and then gave them a reward. If they picked the wrong object, the researcher used a no-reward marker (“wrong” said in a neutral tone of voice).

The objects were not things the dogs were used to. There was a blue basket with white dots which contained a layer of woodchips, and a green box with black stripes on that had a layer of cat litter at the bottom.

The dogs were trained in sessions of 10 trials, until they had got 80% right in two sessions in a row.

Immediately after doing this, dogs either had a play session or a rest session, depending which group they were in.

The 8 dogs in the play session had a 10 minute walk to an enclosed area where they had a 10 minute play session, followed by the walk back. Dogs had a choice between fetching a ball or Frisbee, or playing tug.

The 8 dogs in the rest session were given a bed to lie on while the owner and researcher engaged in a 30 minute conversation. The researcher kept an eye on the dog and said their name or distracted them to prevent them from going to sleep.

The next day, the dogs came back to learn the same task again.

Dogs that had taken part in the play session re-learned the object discrimination much more quickly, taking 26 trials on average (plus or minus 6), compared to 43 trials (plus or minus 19) for the dogs who had rested.


Play improves dog training memory - just ask this Lab playing fetch
Photo: Dmussman; top, dezi (both Shutterstock)


The researchers took measures of heart rate, which differed between play/rest sessions as you would expect, but otherwise was the same for both groups of dogs. They also found that salivary cortisol was lower after the play sessions, which they found surprising (if you’re interested in salivary cortisol research, see this post by Julie Hecht).

19 Labrador Retrievers, aged between 1 and 9 years old, took part. The study focussed only on purebred Labrador Retrievers so that breed could not affect the results. Their prior training levels were also taken into account and evenly distributed across the two groups.

This turned out to be important, because the ‘experienced’ dogs who had previously taken part in cognitive tasks like this learned the task much more quickly. The gundogs need more trials, perhaps because they had previous experience of following human cues in the field, which didn’t happen in the lab. Some of the dogs were ‘naïve’ and had only basic obedience, did not work or participate in trials, and had never taken part in similar research before.

This shows it is important to take prior training experience into account when designing canine research studies.

Three of the dogs had to be excluded (two because of motivation issues, and one because of a preference for one of the objects), so only 16 took part in the full study.

The study does not show the mechanism by which memory is improved, but it is thought to relate to the hormones produced during the play session. However, the play also included exercise, and further research is needed to confirm whether it is play per se or exercise that caused the effect.

The scientists write,
“The results show that engaging in playful activity for 30 min after successfully learning the task improved re-training performance, evidenced by fewer trials needed to meet task criteria 24 h after initial acquisition. This significant difference between the two groups not only suggests that the intervention is affecting long-term memory rather than an improved short-term memory, but also that pleasant arousal post-learning has similar effects on enhancing memory in dogs as it does in humans.” 

This study asked dogs to discriminate between two objects that looked and smelled different. A similar real-life training task is scent detection. Further research to investigate the best ways to improve performance in the training of scent dogs for drug or explosives detection, or in medical testing, could be very exciting.

It’s nice to know another way in which dogs are like people. And next time someone says they’d like to end a dog training session on a positive note, perhaps a game of tug or fetch is in order.

If you're interested in the research on dog training, check out my dog training research resources page or my post about why canine science is better than common sense.


Reference:
Affenzeller, N., Palme, R., & Zulch, H. (2017). Playful activity post-learning improves training performance in Labrador Retriever dogs (Canis lupus familiaris) Physiology & Behavior, 168, 62-73 DOI: 10.1016/j.physbeh.2016.10.014

Companion Animal Psychology is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com and affiliated sites.
Companion Animal Psychology is also a participant in the Etsy Affiliate Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Etsy.com.

Interview with Jean Donaldson on The Culture Clash

To mark 20 years since the publication of The Culture Clash, I spoke to Jean Donaldson about dogs and dog training.


Jean with her dog Brian and friend's dog
Jean with Brian (front) and friend's dog, Turtle


This year is 20 years since the publication of Jean Donaldson’s influential book Culture Clash. Funny, intelligent, and very much about the dog’s point of view, The Culture Clash is still highly recommended by dog trainers around the world. The book shows a strong commitment to training without aversives and provides the technical know-how too. Dr. Ian Dunbar called it “Simply, the best dog book I have ever read!”

I was thrilled to speak with Jean about the book, how things have changed for dogs, and how we can continue to change things for the better.


Zazie: It’s been 20 years since the publication of The Culture Clash. It’s a book that’s still in print, and it’s been tremendously influential and I think a life-changer for many, many people. So it’s definitely something to celebrate. And I wanted to ask you, how much do you think has changed for dogs since it was published?

Jean: I think a lot. Things are so much shifted in terms of the numbers, it would seem. It would be great if somebody actually did a survey where we had some sort of idea of the baseline numbers. So, how many people used to train using any kind of evidence-based attempts and how many people used to train using primarily aversives or a mix, and then how many people do that now. But I fear that that’s just not something we’re ever going to know, so we’ve got to guesstimate based on what we see.  And certainly what I see is that there are more people doing it now. Most of the new people coming in seem to be automatically oriented towards training without aversives and getting a handle on the science.

And certainly one other thing that is clear is that there is the specialty of pet dog training, which when the Culture Clash was first published the Association for Pet Dog Trainers in the US was only – it’s not yet a thirty year old organization – it was still brand new. So just the very idea that pet dog training was a specialty, rather than sort of a trickle down of competitive obedience, is new. So I think both the aversives orientation is much lower now and the notion that pet dogs are a bona fide specialty in training is also almost brand new.

"Most of the new people coming in seem to be automatically oriented towards training without aversives and getting a handle on the science." 

Zazie: One of the things you begin The Culture Clash with is this idea of the Disneyfication of dogs, of how people perceive dogs compared to how they really are. Do you think that’s still the same kind of issue today?

Jean: Yes, I’m afraid it is. I still think that, I mean in spite of all the changes in the training world. And I should add that even those trainers who are training using aversives, if they’re in the pet world, they seem to at least feel they have to advertise that they’re not training with aversives. So they’re using increasingly obfuscating language, they’ll even make claims that they’re quote unquote “positive reinforcement” and then maybe they don’t proceed to do so. But at least they recognize that there’s a demand, and so that is a heartening thing. Yeah, I do think that there is still this tendency, people still find it somewhat disappointing to find out that they must motivate their dog. And that one, I think it’s just going to be an ongoing struggle, we’re going to have to keep pushing.

Zazie: Thank you. So one of the other things that features in The Culture Clash is lots of wonderful information about dog training, which is also in your subsequent books. And I think it’s not just motivation, but many people think that dog training is going to be easy, and then they actually find it quite hard. Why is it so hard?

Jean: I think for a couple of reasons. I mean one is that it’s much more step by step, and I think people go into it with an assumption that there’s kind of a tipping point to the knowledge transference. That, you know, dogs understand concepts of sit or the concept that he knows he should come to me. That we mistake a correct response for full knowledge, as opposed to a correct response that may have been just because of prompting or chance, or it was an easy situation, and then subsequent disobedience as agenda-driven instead of no, that was one correct response and then there’s a wrong response. And if you would like to have more responses that you like, you’ve got to sort of add grains of sand to a scale to change the probability, rather than you say it, he does it, boom okay that parts over now the rest of it is just if only he weren’t stubborn. And so I think there’s that part of it. Then the corollary of that is that we’re living increasingly in a day and age when people are over-booked, we’ve got lower tolerance for process, everything is lightning fast, you know computers, we want things when we want them. And there’s no way that dog training is ever going to become that kind of instant gratification speed.

Now for that reason I also think that it’s good for us, that it’s very grounding. It brings us back to the natural world where there just isn’t that kind of speed. But I think it’s a rude shock for people to find that out, that they’re going to have to practise, practise, practise, practise, rather than just explain to the dog ‘I would like you to do this’ and then it’s just going to happen. So between the motivation and the step-by-step nature of training, it’s a collision for most people with their day to day lives.


Jean Donaldson with her late chow chow Buffy
Jean Donaldson with the late Buffy


Zazie: Definitely. So just coming back to motivation again, I think increasingly people are using food to train their dogs but there’s still a lot of people who are very resistant to the idea. How do we change their minds?

Jean: I’m not sure. My instinct is just sheer repetition of the truth, which is, it’s kind of a glass half full philosophy that people can handle if we just say it and we call on their adult nature and say look, nobody does anything for nothing, there just isn’t that. Now we humans, some of our motivations are of the type that we like to label as altruistic or higher or better, when we’re trying to do things for the common good or to benefit others or for anything that might be philanthropic. Whereas dogs are a little bit more like 3 year old children in so far as you know 'so what’s in it for me, how is it going to advance my objective', and that’s the bad news. The good news is that dogs are actually relatively easy to motivate. There’s so many things that work. Food is pretty much universal. Unfortunately pain and fear are also universal and we’re stuck in this situation where, when we use food, it’s harder for us to cloak that in ‘well, he’s doing it for you.’ Whereas the pain and fear crowd, I think they have an easier time disguising that as ‘you know, we’re just fixing his attitude and the real motivation is he’s doing it for you and we’ve just adjusted his attitude with the pain and fear’. Or ‘oh no it’s not really scaring him, it’s just showing him’, so we have a conflation of the ‘what’ and ‘why’ question.

And I think that if we push for transparency so that people say, okay there’s going to be motivation any which way, then your choice becomes carrot or stick. And I think – at least my optimistic side likes to think – most people will then elect carrot. So those two steps have to happen. We’ve got to make people start to be a little bit more critical as consumers and recognize even those trainers who are trying to exploit their desire for the dog to do it for altruistic motives, that those people are actually bamboozling them, I think that’ll help. But I don’t think I have any illusions, it’s a tall order. I mean, me and far better people than me have been pushing for this for decades, and it’s better than it used to be but it’s not an easy one to fix.

"I think that if we push for transparency so that people say, okay there’s going to be motivation any which way, then your choice becomes carrot or stick."

Zazie: Definitely not easy. You touched on transparency, and a little while ago you started something called the transparency challenge, and we saw various dog trainers giving their answers to the questions in that challenge. Can you say something about the purpose behind starting that?

Jean: Yes, the purpose was to couch the dog training issues, both the philosophy and the competence issues, as consumer protection, which is I think quite right. Not only are there dog welfare issues, and I think most people doing things towards other beings, if there is less invasive, they’d prefer to be less invasive.  And then we take a step back and so the question then becomes you know, can we get the job done? And then we need to make sure that people are not falling for gobbledegook language that I referred to before when trainers who are less scrupulous make all sorts of appeals.

For instance the other day somebody I know said that somebody else they knew, a friend of a friend basically, was taken for a ride by a dog trainer advertising themselves as quote unquote “a Buddhist dog trainer”, where they were trying to get the dog centred and in the right state etc, and then proceeded to coerce this dog. And these people, who are educated, these are people with graduate degrees, living in Berkeley, who just, well they assume this person wouldn’t have got in to dog training – dog training is not a fantastically lucrative profession – therefore anybody who gets into it must be sure of motives, must be altruistic, must love dogs, and also they must know something we don’t know. This tendency to never challenge the dog trainer, it’s partly why the dog whisperer is still on television, it’s partly why people don’t question, it’s partly why you can say things like “we’re centring his energy” or “we’re changing his centres” or whatever. Well essentially what you’re doing is yanking a dog on a chain, but if we get people to recognize it, that there’s going to be a concrete physical world motivator, and you as a consumer can actually test this out yourself, you can be a consumer scientist. And say, okay if you are actually training this dog with Buddhist energy beams, do it without the metal chain on his neck; if you’re a dog whisperer actually doing this with energy, what’s the special collar, let’s see you do it without kicking him?

If we get people to recognize that this is just market-speak, at least, in the US there is I think a very strong instinct, and I think it’s a good one, that we don’t want to be taken. We want to know the ingredients in the jar, we want to know what’s being done, we want transparency, we want to know before we spend money for goods or services if somebody is doing something that is non-ethical in that regard, they should be prosecuted, literally and metaphorically that it shouldn’t happen. And I think that’s an instinct that we can capitalize on by making people recognize that there’s always a concrete real world motivator, it’s likely to be one of these five or six things, identify it, and be especially wary of those trainers who don’t state up front what they’re doing. I mean it’s really kind of the informed consent model that I think might help the cause. I mean it remains to be seen whether it’s going to do so but that’s the rationale.


Three questions to ask dog trainers for consumer protection
Three questions for dog trainers


Zazie: So following on from that, do you think dog training should be regulated?

Jean: Yes I think it’s high time and it really is almost an embarrassment that it is not yet regulated. Given the interest that people have in public safety, so whenever there’s an incident, a dog bites or somebody is sadly injured or killed by a dog, there’s huge amounts of interest in expending taxpayer money to do things like ban breeds. And yet in spite of that clear interest in public safety, the fact that dog trainers are not regulated seems to be a disconnect. And there needs to be minimum education, minimum competence standards and hopefully ethical requirements. I think it’s probably going to happen in our lifetime, it’s just a question of getting past the political difficulties that are inherent in cleaning up a profession.

Zazie: One of the arguments that people who use aversives often use is they claim that there’s no choice, that it’s a case of ‘aversives or death’ is the way we can kind of summarize it, that they have to use, sometimes, aversives, otherwise the dog is going to have to die. What do you say to that?

Jean: I think that’s a valid argument. If the question was, and I’m somebody who doesn’t wish to use aversives, however I do reserve that if there was literally a question where somebody said look we’re going to use aversives on this dog or we’re going to kill him, I think I would say yeah of course let’s use aversives. But then we get down to the reality, and the reality is that then we need to account for the thousands – if not probably tens of thousands – of practitioners who are already out there, daily, getting the job done both in training, behaviour modification, management of animals, the full gamut of case types, and they’re doing so without aversives. And so, how would the aversives or death… they’d need to account for it, they’d need to account for me, they’d need to account for the thousands and thousands of other trainers. And they seem to sidestep that question altogether by making this false claim that we’re just saying well, you know, euthanize the animal – and that’s just not happening. And so I think there’s denial on that side. Which is understandable, I mean if you think of the position that they’re in, they’re electing to use aversives in a climate where there is this huge chorus of people saying you don’t have to do so. And so their choices, psychologically, are either they’re electing aversives needlessly, which is kind of psychologically untenable, or we – the other side – are killing dogs. So I think psychologically it’s about their survival and so it’s not surprising that they make that claim because the alternative is unbearable.

"we need to account for the thousands of practitioners who are already out there, daily, getting the job done both in training, behaviour modification, management of animals, the full gamut of case types, and they’re doing so without aversives."

Zazie: Switching topics slightly to ordinary people, to ordinary people when they’re training their dogs. If they’re committed to using reward-based training methods but they’re still learning, what is the most common mistake that people make and how can they improve?

Jean: The most common mistake – and everybody’s going to have to forgive me for being such a broken record – it’s not sufficiently addressing motivation. So, to put not too fine a point on it, basically failing to cough up the chicken. Either not using enough reward, often enough, being armed with it when necessary, having a high enough value of reward, manipulating the economy so the dog isn’t full so if you’re using food making sure that the dog isn’t already full. That is a number one that even people who nominally have bought into using rewards then might proceed to kind of gradually in a slow-drip manner undermine the process by trying to use as little as possible, as infrequently as possible, as low value as possible, .. and things end up not going so well and they say well reward-based training isn’t working. And it really is kind of “I’m expected to go do my job but I’ve just been given a pay cut of 90%, and I have poor work conditions and my performance is starting to flag and so my boss assumes that money therefore isn’t motivating” etc, whereas “this whole bit of stuff about motivation doesn’t work and we should now resort to electrically shocking me to get me to perform” etc.  So I think that is still of epidemic proportion.

"The most common mistake is not sufficiently addressing motivation."

And then after that there’s various mechanical things but they so pale in comparison to the reluctance that people have to make it worth a dog’s while to answer the question of ‘why should I do this?’. Here’s why you should do it.


Cover of the second edition of The Culture Clash


Zazie: Excellent. So just to give a very concrete example, you have an extremely cute dog called Brian, and I think probably some people would look at him and just think “he’s very sweet, why do you have to motivate him?” When you really need to motivate him, what do you use? What’s his favourite reward?

Jean: He’s very about primal nibs. He’s about this stuff called Rawbble which is little kind of freeze-fried raw things. He’ll work very nicely for chicken breast and I cut it into tiny little dice. He’ll work for cheese. He’ll occasionally work for a toy but not much, he’s not incredibly toy-driven and so I generally train him with food. And he can go and go. When I first got him, before he was much hooked on training, he’d be good for maybe 10-15 minutes. Now he’s to a point it’s been over a year and he can go probably for an hour or so in a class situation and still keep working. And I should say for the record even though he’s a small dog and I train him loads, he’s not the slightest bit overweight. And most of the dogs I know who are owned by food training trainers, their dogs are in superb condition, and there are many people out there who don’t train with food whose dogs are obese. So I would venture to say that if somebody were to study this, I would predict that there’s not a correlation between using treats to train and the dog’s medical status or weight, that that just doesn’t happen.

Zazie: Go Brian, that’s very good! So if someone is getting a dog for the first time, they haven’t had a dog before, what do you think is the most important thing for them to know?

Jean: That’s a great question! I would say the most important thing for them to know is that they’re bringing another species into their home, and that all kinds of things that the dog is going to do are going to be dog things. And so even before they understand training and contingencies and so on that they hopefully open up to the actual kind of wonder of having this other being. You know, we pay good money for cable channels so we can watch shows depicting crocodiles and rhinoceroses and other cultures and any kind of being that’s different. We’re fascinated by that. And I think we’ve become a little bit contemptuous of the familiarity of dogs but they are very different and I think part of the beauty of it is welcoming that they’re gonna do dog things, and so.. I’m just pre-normalizing a lot of it, that people can access to up-to-date information on what dogs do and that it’s not all sort of an insidious plot, that it’s just a dog being a dog and if we can kind of celebrate that.

"There’s all these things that are to me this shifting landscape from ‘you have your dog under your thumb’ versus ‘are you doing right by him? are you making sure that he’s happy?’"

And I think it’s also a change that is very happy. It used to be, when I first started in dogs, this was long before The Culture Clash, the paragon of a good dog owner was somebody who had their dog quote unquote “under control”, that your dog was quote “well-behaved” which meant he was not inconveniencing humans, wasn’t moving too much etc. Now, more and more we’re putting dogs into everything from MRI scanners and we’re trying to discern whether the dog is happy. So the mark now of a good dog owner is somebody who is actually fulfilling the dog’s basic needs. So letting the dog be a dog, training with the least invasive ways possible, making sure he’s got a veterinary experience that’s not going to be full of fear etc. There’s all these things that are to me this shifting landscape from ‘you have your dog under your thumb’ versus ‘are you doing right by him? are you making sure that he’s happy?’ And that is in no way going to harm the public good, it’s not. These are perfectly aligned objectives. You can still have a dog that is quote unquote “well behaved” and not dangerous and not a nuisance etc while still being happy. The fact that we’re factoring in the dog’s quality of life now in a real way and we’re trying to as objectively as we can and as faithfully as we can figure out what that is, I think is a tremendous development that I don’t think anybody would have foreseen 30 years ago.

Zazie: And you touched on veterinary care as well, so how can we make dogs have better visits to the vet?

Jean: Part of that is going to be really tough because sometimes veterinarians – and groomers too I might add – have to do things that are necessarily going to be painful and scary. Dogs are going to come in hurt, injured, they’ve got to do emergency procedures, they’ve got to do surgeries on dogs. But I think increases in understanding about fear, medications we can use for pain management, for management of anxiety, pre-preparing dogs, I think all these things can go a long way to mitigating what to dogs has got to be a very difficult thing. And I think that the Fear Free movement deserves a callout, that it’s dove-tailing very nicely with what those of us in behaviour have been saying for a long time which is that fear is something that we need to take very seriously. And if it can be prevented, mitigated and ameliorated when it is on board, will go a long way towards bettering dog’s quality of life and keeping veterinary staff and the public safe.

Zazie: Thank you. So you’ve been an educator for many years now, and must have taught thousands of dog trainers. What are the qualities of a good dog trainer?

Jean: Oh wow that’s also a good question. I think now first and foremost it’s somebody who relishes, enjoys and has got skills at communicating with novice owners. People who don’t have the same kinds of motivations as dog trainers. When you’re training dog trainers, part of the thing is trying to get the dog trainer to be efficient and not train like a bat out of hell and work the dog for two hours etc. You know, we’re built to train, we love the process and we are about dogs and we’ve decided to devote our lives to it. Owners love dogs and they adore their dog, but they don’t have the same intrinsic motivation that we do. And so I think the ability to accept and meet owners where they are, and relish the challenge of making all the intricacies and pieces of dog training accessible to owners. So that involves the ability to triage, the ability to empathize with the owner in a genuine way, to not be judgemental that the owner is not a dog trainer. The only people who are entitled to have dogs in their homes are not people who are already dog trainers. We can be that kind of translator and we can get the dog’s quality of life, we want to protect the public good, and have the owner enjoying their dog more. It’s a very complex profession. And people who embrace that part, as opposed to just wanting to advocate for dogs, I think that is the dog trainer of the future. And then of course there’s all that technical knowledge, but I think first and foremost – and that’s something that one can’t teach – is somebody who really genuinely is curious about and likes handling the people end.

Zazie: So you run the Academy for Dog Trainers. I was very lucky to win a scholarship and then graduate, so I know it’s a wonderful school. If someone is reading this, and they’re thinking of going to learn more about dog training, what is special about the Academy?

Jean: I think probably the thing that makes it the most different are the standards, both in terms of the length and scope of the program, the demands it makes. It’s really asking a lot. Which means that for some people they’re going to find themselves in their element, but I think it’s not for everybody. I think it’s a bit of a shock to the system of dog trainers that up until fairly recently – really in the last ten or fifteen years – the standard for entering the profession has been extremely low bar: read a few books, maybe put some titles on some dogs, go to a few seminars, put out a shingle. And we’re saying it’s just not enough. We want a lot more, we want it structured, we want it evaluated, and we want two years’ worth of it.  And I think for some people as I said they’re going to find themselves right in their element but it is not for everybody. So people thinking about the Academy need to be really sure they are up for a big commitment and I think a complex profession such as ours needs that, but people need to be ready for that kind of challenge.



A huge thank you to Jean for answering my questions! You can read more about the Academy for Dog Trainers or follow them on Facebook or twitter.


About Jean Donaldson: Jean is the founder and principle instructor of The Academy for Dog Trainers.  The Academy has trained and certified over 600 trainers in evidence-based dog behavior, training and private behavior counseling since 1999. She is a four-time winner of The Dog Writers' Association of America's Maxwell Award, and her books include The Culture Clash, Mine! A Guide to Resource Guarding in Dogs, Fight! A Guide to Dog-Dog Aggression, Dogs Are From Neptune, Oh Behave! Dogs From Pavlov to Premack to Pinker, and Train Like a Pro.

Born in Montreal, Canada, Jean founded the Montreal Flyball Association, and Renaissance Dog Training, the first positive reinforcement-based school and counseling service in the province.  Her own dogs and dogs she has trained have earned numerous titles and wins in various dog sports including OTCh (Obedience Trial Champion), UD (Utility Dog), TDX (Tracking Dog Excellent), FDCh (Flyball Champion), CGC (Canine Good Citizen) and HIT (High In Trial).  While a student, she worked as an adoption counselor at the Montreal SPCA and later served on its Board of Directors.  Before founding The Academy, Jean did exclusively referral aggression cases for six years.  She lives in Oakland with her dog, Brian, adopted in 2015.



Companion Animal Psychology is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com and Amazon.ca.

Testing an Automated and Humane Way to Resolve Barking

Teaching a quiet behaviour using an automatic feeder is a promising solution to barking problems.


Cute little crossbreed terrier looking out of the window


Some dogs bark when their owner is out and they are left home alone. A recent study by Alexandra Protopopova  (Texas Tech University) et al investigates the effectiveness of a humane, automated approach to solving barking problems.

The research was conducted because some owners use citronella or shock collars to try and prevent their dogs from barking. While the devices may sometimes work, there are concerns they may also have adverse effects.

For example, if a dog barks when they see people going by the window and then receives a burst of citronella or an electric shock, they may associate the unpleasant experience with people and become fearful and/or aggressive. Because of these welfare concerns, some organizations recommend against their use (see the AVSAB position statement on the use of punishment).

This study used a humane approach that rewarded dogs with food (via a PetSafe remote-activated feeder) for periods of quiet. It was not a fully-automated system as the researcher logged barks and activated a remote control, but it shows the possibility of an automated system in future.

Eight dogs were initially recruited to take part in the study, but three were almost immediately excluded when they failed to bark during the first two sessions. The remaining five dogs ranged in age from 8 months to 6 years.

Rewarding the dog for being quiet is what is known as a DRO – differential reinforcement of other behaviour, i.e. other to barking.

The period of time dogs were expected to be quiet for was different for each dog, based on observations of the frequency of barking. For two of the dogs, it was as little as 5 seconds, and for another it was 7 seconds. For these three dogs, each session was only 10 minutes long so that they did not eat too much; the other two dogs had 20 minute sessions.

The design of the study involved a baseline period in which the dog is left alone and barking is monitored but nothing happens, followed by a test period in which the feeding system was used to reward periods of quiet, and then a repeat of both sessions.

The owner left the dog, either shutting the dog in a room or crate as they usually did when leaving home. The researcher was in another room where they could hear barking and activate the remote control when the software told them it was time to give a treat.


A Boston Terrier looks out of a window


During the test sessions, the interval for which each dog was required to be quiet before getting a treat remained the same for the entire time.

For example, a dog called Nina barked every 4.4 seconds on average during the two baseline periods. During the test sessions, every time she went 5 seconds without barking, she was given a treat. During these 10 minute sessions, she barked on average every 26.6 seconds – but in fact she did not bark at all during the second test session.

The protocol worked for three of the five dogs. It did not work for one dog, and for the other dog it was not easy to tell.

In a second experiment with just the three dogs for whom it worked, the length of time they had to be quiet before earning a treat was increased by doubling the time from one session to the next. Two of the dogs were quiet for the longest period tested (600 seconds and 1,200 seconds). The third dog (Nina) showed big improvements in the early stages but then began to sometimes bark again; this may or may not have been related to a mistake that increased the duration more rapidly than planned.

One thing to note is that the dogs could have been barking for any reason to be accepted into the study. In fact the paper says four of the dogs (all except for Nina) potentially showed signs of separation anxiety.

The time intervals were chosen based on what it seemed a dog would be able to easily achieve, based on their barking record, but the smallest time interval used was 5 seconds. Maybe a shorter interval would have been better for some dogs. Also, it would be more efficient to have a protocol for adjusting the time intervals throughout, but that was not part of this study.

The scientists conclude “This study provides evidence of the efficacy of an alternative (DRO) to the devices that deliver aversive stimulation to decrease home alone excessive barking for at least some dogs.”

Think about it: just two 10- or 20 minute sessions were enough to teach three of the dogs to be quiet for a certain length of time. Further research can investigate the best training protocol to use, and the most efficient way to increase the duration of the quiet behaviour.

This study has a very small sample size, but the results are promising. Perhaps in the future there will be a range of automated reward-based anti-barking devices on the market.

People who buy citronella or electronic anti-bark collars might be just as willing to buy an automated anti-bark feeder and use it to provide their dog’s meals, giving them an easy solution without welfare concerns. It is already possible to buy such a device (although not the version used in the study which was designed by the researchers).

A good reward-based dog trainer will devise a training plan that takes into account the reason why the dog is barking (e.g. excitement, fear, separation anxiety). If you think your dog has separation anxiety, you will find useful information via the website of Malena DeMartini.

Does your dog bark a lot?



Companion Animal Psychology is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com

Reference
Protopopova, A., Kisten, D., & Wynne, C. (2016). Evaluating a humane alternative to the bark collar: Automated differential reinforcement of not barking in a home-alone setting Journal of Applied Behavior Analysis DOI: 10.1002/jaba.334
Photos: Susan Schmitz (top) and Jennay Hitesman (Shutterstock.com)

Clicker Training vs Treat: Equally Good in Dog Training

Scientists find unanticipated results in a study that compares the clicker to a verbal reward-marker and the use of food alone in dog training.


An Australian Shepherd looks at a clicker in a dog training session


The study, by Cinzia Chiandetti (University of Trieste) et al  took 51 pet dogs and trained them on a novel task. 17 dogs were trained using a clicker, 17 using a verbal reward marker (“Bravo”), and 17 with only a reward. Then they tested the dogs to see how well they performed when asked to generalize the training to something similar and something more different.

The results were a surprise to the scientists, who expected to find that using the clicker would lead to better results. In fact there was no difference between the three groups of dogs.

They write,
“Although we should be cautious in drawing any strong conclusion from statistically non-significant results, our study is consistent with previous works conducted in different laboratories with both dogs and horses… which, taken together, point toward no advantage in favor of the shaping method using one acoustic signal over another.”

A clicker is a secondary reinforcer, meaning something that predicts a primary reinforcer (food) is coming. This is a classical conditioning relationship (click means treat). The clicker or verbal reward is used to mark the precise time at which the dog is performing the behaviour that earns a reward. It is commonly used in reward-based dog training.

Proponents of clicker training have often argued there is something about the click which makes dogs learn better. The purpose of the study was to test this idea, since we don’t know without empirical evidence (see: canine science is better than common sense).

In this study, the verbal reward marker was “Bravo.” It was always said in a neutral tone of voice.

The dogs were trained at their own home, either inside or in the garden. The dogs had only been previously trained by their owners, so they were not well-schooled in obedience training and had never been taught the task used in this study.

There were two trainers who both used the same approach and who each trained half the dogs in each group. All sessions were video-recorded.

The reward for the dogs was pieces of sausage or cheese, whichever the dog preferred. Regardless of the experimental condition the food reward was always delivered in the same location.

Should you use a clicker in dog training? This study found just a food reward is enough.
Photos: Melounix (Shutterstock.com)

There were two initial warm-up sessions to get the dog used to the trainer: teaching the dog to touch a box with their nose, and to put their paw on a box. During these sessions, the dogs in the clicker and verbal reward-marker conditions learned the association between the click or “bravo” and the delivery of food.

The training session used a method called shaping, in which the dog is rewarded for closer and closer approximations of what they have to do. They were taught to open a plastic bread box by pushing the handle up with their nose or muzzle.

The dogs had up to three training sessions a day until they were able to open the bread box 8 out of 10 times.

A week later, dogs were asked to repeat the bread box-opening at least 3 out of 5 times. A few hours later, they took part in the experimental trials.

The simple test used a different-coloured bread box that had had the back removed. In other words, it was very similar to the box used during training.

The other test was more complex because it was a different size and shape, and made out of wood instead of plastic.

During the experimental trials, no rewards were given, and the dogs only had 5 minutes in which to perform the behaviour. Half the dogs did the simple test first while the other half did the complex test first. They had to push the handle with their nose or muzzle to open the door of the bread box.

Almost all of the dogs completed both the simple and the complex test. The scientists looked at the length of time taken in training and how many attempts each dog had at three different stages: to reach the first behaviour in training, to get from there to the criterion in training, and to complete the simple and complex tests.

There were no significant differences between the groups. Just to be sure, the scientists also computed some indices of the number of attempts by time. Again, there were no differences.

The scientists write,

“Learning seems to be independent from the type of sound anticipating the food reward and, even more strikingly, it seems to be equivalent either with or without the clicker sound or the word ‘Bravo’.”

Given that rewards were always delivered in a fixed location, the scientists acknowledge it is possible the trainer’s movement towards that location may have acted as a visual secondary reinforcer. However, even if this is the case, it does not change the finding that there was no significant difference to the other conditions.

For people who train dogs, the results suggest you can use a clicker – or not – as you prefer. Some people enjoy clicker training a lot and find it fun; they will want to continue to use it. Some people find it fiddly and will prefer not to use one.

What’s nice about this study is that it involved training pet dogs at home, so it’s likely to generalize to other dog training situations. We also know the dogs were motivated, because the reward was either sausage or cheese, depending on their preference. For people who are new to dog training, one thing to note is that all three methods worked because food is an effective way to train a dog.

It may be that reward markers such as the clicker are best suited to training in which precise timing is important, and that other kinds of task than that used here might show a difference.  Further research can investigate this. The researchers say it would be interesting for future studies to try a more enthusiastic delivery of the verbal reward marker to see if that makes a difference.

Do you like to use a clicker in dog training?


Reference
Chiandetti, C., Avella, S., Fongaro, E., & Cerri, F. (2016). Can clicker training facilitate conditioning in dogs? Applied Animal Behaviour Science DOI: http://dx..org/10.1016/j.applanim.2016.08.006 
Companion Animal Psychology is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com and Amazon.ca.

In Dog Training, Balance Is Off

It’s not a good thing when dog trainers describe themselves as ‘balanced’. Here’s why.


A Jack Russell Terrier balances on a rope bridge


When you think about balancing dogs, your first thoughts might be of a dog walking along a beam, all nicely balanced and not falling off. Or maybe of a dog posing for a photo with a pile of cookies balanced on their muzzle, to show off how good their balancing skills are.

But, unfortunately, this is not what people mean when they refer to ‘balanced’ dog training.

Balance is one of those weasel words in dog training. If we think of the word in the abstract, balance is a good thing; we don’t want to be off-balance and fall over. So it sounds persuasive. But in terms of dog training, balance has risks despite the name.

Of course, balance is just a word in the English language and may be used in various ways since it can be used by anyone.

When people refer to ‘balance’ in dog training they usually mean in terms of good and bad, i.e. not just using positive reinforcement but making use of punishment too.


What’s wrong with balanced methods for training dogs?


People who refer to ‘balance’ in dog training methods are often doing so to distinguish themselves from dog trainers who use positive reinforcement.

You may hear statements that people should “use all four quadrants” of dog training. In plain English, what they mean is that as well as rewarding good behaviour, you should also physically punish your dog. You’ll notice an appeal to authority – science – in using the technical terminology of quadrants. But it is just plain irresponsible to advise people to physically punish their dogs.

Balanced trainers often don’t use the word punishment to describe what they do. Instead they talk about ‘corrections’ or ‘correcting your dog’. But if we want to be technical about it, it’s positive punishment. (Still on a technical note, there may also be circumstances in which balanced trainers use negative reinforcement).


What does science tell us about combining rewards and corrections in dog training?


Because many ordinary people use a combination of rewards and punishment to train their dogs, scientists are able to assess how obedient (or otherwise) people rate their dogs and compare it to the methods used.

One study found that most people use rewards to train their dog at least some of the time: about half of all training involved the use of rewards (Arhant et al 2010). The most common rewards, used by 90% of dog owners, were petting and verbal praise. Food was used as a reward ‘often’ or ‘very often’ by more than half of dog owners, and play was another commonly used reward.

The problems with balanced dog training
The more often people used rewards in training, the more likely they were to say their dog was obedient, and the less likely they were to report aggression or anxiety.

This study also found that about a quarter of training was punishment-based (the remaining group of techniques they studied included things like comforting a dog).

The more often people used punishment, the more likely they were to say their dogs are aggressive and excitable. For little dogs, the risks are increased because the more often punishment was used, the more likely the dog was to be anxious and fearful too.

The most common types of punishment were scolding the dog and leash jerks, used by 80% of respondents. About 30% of owners slapped the dog, held the muzzle, used alpha rolls or shook the dog by the scruff as a form of punishment, while 15% used noise to startle the dog. These other types of punishment were used less often.

This study, as with most others on dog training methods, was correlational and we know that correlation does not prove causation. However, other studies also report similar findings. (If you specifically want an experiment where observers were blind to the training method used, there is one that found welfare implications with shock collars).

There is evidence that using physical punishment with dogs can lead to an aggressive response (Herron et al 2009). For example, 11% of owners who used prong collars (a common tool of balanced dog trainers) reported that it led to aggression. 15% of those who yelled “No!” at their dog also said that it sometimes led to aggression. Of those who said they “hit or kick [the] dog for undesirable behaviour”, 43% said there was an aggressive response.

Aggression is a serious problem because as well as potentially causing injury to a human, it may also result in the dog having to be euthanized.

On the other hand, most of these owners also used food rewards (89%), and 86% of them reported that it had a positive effect on behaviour.

So what we see is that people who use rewards to train their dogs report better-behaved dogs with fewer behaviour problems. Why 'balance' rewards and 'corrections' when corrections have risks? Using reward-based dog training is better than using both rewards and positive punishment.

In fact food is typically the best reward to use when training your dog. Dogs like food and it’s an efficient and effective way to train; what’s more, dogs like to work to earn rewards.


But how do you stop your dog from doing bad things?


This is a common question from people who are used to using punishment in training.

Switching to reward-based training involves a change in how you think about your dog’s behaviour. When people are in the habit of using punishment, they are reacting to the dog doing something they don’t want in order to try and stop it from happening.

Another way to look at it is to ask what you would like your dog to do instead, and train them to do that.

Suppose the problem is that your dog jumps up to greet everyone, and it’s annoying and embarrassing.

Well first of all, congratulations on having a friendly dog who likes to greet people. That’s brilliant!

And second, what would you like them to do instead? Perhaps you would like them to sit politely and be patted. Or perhaps you would prefer to teach them to target the person’s hand with their nose, so they can still sniff the person but don’t jump up. Either way, you can then develop a training plan and use rewards to teach your dog what to do.

The bit that surprises some people is that you can do this without having to physically punish the dog. You can avoid giving your dog the opportunity to jump in the first place. If your dog does jump up, you can ask the person to turn briefly away, or you can take the dog away from them and then try again (technically, negative punishment). Or if you prefer you can just ask them not to pet the dog (although many people will; after all it’s hard to resist petting a friendly dog). Then get back to your training plan.


But some people mean balanced as a state of mind…


I have also seen some people refer to dogs themselves, rather than training methods, as ‘balanced’ or even ‘well-balanced.’ Again, they don’t mean literally that they are able to stay upright; it’s a metaphor (sometimes used in conjunction with the wolf pack metaphor). And as I said above, it’s an appealing one because the opposite, imbalanced, has bad connotations. But what exactly does it mean? Since it is referring to an apparent state of mind, it’s hard to know exactly and impossible to assess.

It’s far better to think about our dogs’ behaviour in terms of things we can observe. For example, is the dog well-behaved or are they doing something you don't like? (And if so, what specifically, and what would you prefer them to do instead?). Are they happy? Or are they fearful? These are all things we can actually observe.


A Scottish Terrier balances on a beam


Although most people are able to recognize a happy dog, experience helps people spot fear. So it could be that some people who use aversive methods are not able to recognize signs of stress and fear in their dogs; I like to think that if they did, they would rethink their methods.

At the same time, some dog trainers claim their methods are ‘humane’ and ‘do not hurt’ when actually they are unpleasant for the dog, otherwise they would not work. Because dog training is not regulated, dog trainers are not required to be transparent about what they do (and some may not have the technical expertise to do so). Everyone who’s learned about quadrants of operant conditioning will know it can be hard – we can’t expect the average dog owner to know, but trainers should.


Deciding how to train your dog


When choosing a dog trainer, as well as looking for someone with a qualification and a commitment to ongoing professional development, pick someone who is proud to say they use food to train. If they are disparaging about the use of food as a reward, look elsewhere.

Because ‘balanced’ dog training involves combining the use of rewards with corrections that carry the risk of fear and aggression. That doesn’t sound like a good balance to me. It’s better to skip the risky part and stick to reward-based dog training.

So let’s take balance off the menu and use food rewards instead.

If you would like to know more about the research on dog training methods, check out my dog training research resources page which includes links to scientific papers as well as to blogs where you can read all about them.



Companion Animal Psychology is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com

References
Arhant, C., Bubna-Littitz, H., Bartels, A., Futschik, A., & Troxler, J. (2010). Behaviour of smaller and larger dogs: Effects of training methods, inconsistency of owner behaviour and level of engagement in activities with the dog Applied Animal Behaviour Science, 123 (3-4), 131-142 DOI: 10.1016/j.applanim.2010.01.003
Herron, M., Shofer, F., & Reisner, I. (2009). Survey of the use and outcome of confrontational and non-confrontational training methods in client-owned dogs showing undesired behaviors Applied Animal Behaviour Science, 117 (1-2), 47-54 DOI: 10.1016/j.applanim.2008.12.011
Photos: alexei_tm (top), Mat Hayward (middle) and olga_i (all shutterstock.com)

Seven Reasons to Use Reward-Based Dog Training

It’s amazing what we can do when we use rewards to train our companion animals. Here are some reasons to give it a try.


A happy dog waiting for a reward



Positive reinforcement is recommended by professional organizations


Many professional organizations have spoken out against the use of punishment in dog training because the scientific evidence shows that it carries risks.

For example, Dogs Trust recommend the use of rewards in dog training. “In order to be effective and to gain the best results, all training should be based around positive rewards. Positive reward training works because if you reward your dog with something he wants as soon as he does what you ask, he is far more likely to do it again.”

In their advice on finding a dog trainer, the American Veterinary Society for Animal Behaviour says “AVSAB endorses training methods which allow animals to work for things (e.g., food, play, affection) that motivate them rather than techniques that focus on using fear or pain to punish them for undesirable behaviors. Look for a trainer who uses primarily or only reward-based training with treats, toys, and play. Avoid any trainer who advocates methods of physical force that can harm your pet such as hanging dogs by their collars or hitting them with their hands, feet, or leashes."

Some organizations (such as the Pet Professional Guild and the APDT (UK)) and some dog training schools (such as the Academy for Dog TrainersKaren Pryor Academy and the Victoria Stilwell Academy) have a code of practice that requires their members to use kind, humane methods instead of aversive techniques.

If you are looking for a dog trainer, whether for puppy class or behaviour problems, see my article on how to choose a dog trainer.

Reasons to use positive reinforcement in dog training


People report better results with positive reinforcement


Several studies have found that people who use positive reinforcement to train their dogs report a better-behaved dog than those who use aversive techniques.

In a study by Blackwell et al (2008), the dogs of people who used only positive reinforcement training were less likely to have behaviour problems. They suggested this could be because dogs don’t associate punishment with their behaviour, but instead with the owner or the context, and hence may become fearful and anxious.

Another study (Hiby et al 2004) found if dog owners used punishment (whether or not they also used rewards) their dogs were more likely to have problem behaviours. People who only used reward-based methods reported more obedient dogs

These results apply to dogs of all sizes. In a study that compared small and large dogs (Arhant et al 2010), those whose owners used more punishment were reported to have more problems of aggression and excitability whatever their size. However this was most pronounced for little dogs (less than 20kg).

Of particular concern is the finding that people who use confrontational methods (such as prong, choke and shock collars or growling at the dog) sometimes report an aggressive response (Herron, Shofer and Reisner 2009). This was never reported in response to using rewards.

These studies relied on owner reports, but another study used an experimental design to compare positive reinforcement to shock collars. They looked at teaching recall in the presence of livestock and found that, contrary to popular belief, the shock collars did not lead to better trained dogs (Cooper et al 2014). And in fact, the dogs trained with shock showed signs of stress, which brings us to the next point.

Reward-based training is better for animal welfare 

Happy Afghan hound trained with rewards

The conclusion of Cooper et al’s study is that the “immediate effects of training with an e-collar give rise to behavioural signs of distress in pet dogs, particularly when used at high settings.”

Another study looked at the body language of dogs at two training schools where the dogs had already learned sit and loose-leash walking. One school used positive reinforcement while the other school used tugging the leash or pushing the dog’s bottom down until it did the required behaviour. Dogs previously trained with the aversive techniques showed more stress-related behaviours, such as a lowered body posture, and looked less at their owner compared to those trained with positive reinforcement (Deldalle and Gaunet 2014).

If you use reward-based training, you avoid the risk that aversive techniques will cause stress, anxiety or fear. This is better for both the dog and you.

“Ultimately, reward-based training is less stressful or painful for the dog, and, hence, safer for the owner,” say Herron, Shofer and Reisner (2009).

Positive reinforcement dog training is good enrichment 


Successful problem-solving, like learning a behaviour in exchange for a reward, makes dogs happy.

Research has shown dogs that work to earn a reward are happier than those that are just given a reward (McGowan et al 2014). The scientists called the dog learning s/he could earn a reward the “Eureka effect”.

Dr. Ragen McGowan told me “Think back to last time you learned a complicated new task... do you remember the excitement you felt when you completed the task correctly? Our work suggests that dogs may also experience this 'Eureka Effect.' In other words, learning itself is rewarding for dogs.”

This study shows that giving your dog the opportunity to earn rewards is a good enrichment activity (another thing that's good for animal welfare).

Dogs get better at learning with rewards


Dogs that have previously been trained using positive reinforcement do better at learning a new task.

This was the finding of a study by Rooney and Cowan (2011) who took videos of owners and their dogs interacting at home. One of the tasks involved giving owners a ball and a bag of treats that they could use (or not) as they wished. The owners were asked to teach their dog to touch a spoon.

The dogs who learned the new task more quickly were the ones whose owners had used more rewards in earlier training.

The explanation? It’s probably down to a more motivated dog. Rooney and Cowan say “a past history of rewards-based training increases a dog-owner partnership’s success in future training; possibly by increasing the dog’s motivation and aptitude to learn, because it learns to anticipate rewards.”

It focusses on what your dog can do


Reward-based dog training is good for your dog
It makes sense to teach your dog what to do, rather than what not to do. It can get very frustrating if your dog keeps doing something you don’t like. It’s probably frustrating for your dog too.

For example, suppose your dog jumps up on you. They are probably trying to get close to you and wanting some fuss, which they don’t get if you push them away. However you can teach them that if they keep all four paws on the ground they will be rewarded with affection and a treat. Over time, they will learn to do this instead. It’s a win for you and the dog.

If you don’t actually teach them what to do, how can you expect them to learn it?

Reward-based dog training is fun 


Dog training should be fun for you and your dog. Using rewards to teach your dog what to do can be a fun game for you and your dog to enjoy together. As well as basic obedience behaviours like sit, down and stay, you can teach tricks such as shake hands, wave, say your prayers, sit pretty, or spin.

Don’t forget to reward yourself after a good training session – you’ve earned it, too!

What do you like best about using rewards to train your dog?

This post is part of the 2016 Train for Rewards Blog Party, hosted here at Companion Animal Psychology. Check out the other posts and find out how you can take part in #Train4Rewards. And read the 2017 Train for Rewards blog party here for lots more posts on reward-based dog training, cat training, etc.


You might also like: What is positive reinforcement in dog training? on this blog; and the double advantage of reward-based training (over at the Academy for Dog Trainers)


References
Arhant, C., Bubna-Littitz, H., Bartels, A., Futschik, A., & Troxler, J. (2010). Behaviour of smaller and larger dogs: Effects of training methods, inconsistency of owner behaviour and level of engagement in activities with the dog Applied Animal Behaviour Science, 123 (3-4), 131-142 DOI: 10.1016/j.applanim.2010.01.003
Blackwell, E., Twells, C., Seawright, A., & Casey, R. (2008). The relationship between training methods and the occurrence of behavior problems, as reported by owners, in a population of domestic dogs Journal of Veterinary Behavior: Clinical Applications and Research, 3 (5), 207-217 DOI: 10.1016/j.jveb.2007.10.008
Cooper, J., Cracknell, N., Hardiman, J., Wright, H., & Mills, D. (2014). The Welfare Consequences and Efficacy of Training Pet Dogs with Remote Electronic Training Collars in Comparison to Reward Based Training PLoS ONE, 9 (9) DOI: 10.1371/journal.pone.0102722
Gaunet, F. (2009). How do guide dogs and pet dogs (Canis familiaris) ask their owners for their toy and for playing? Animal Cognition, 13 (2), 311-323 DOI: 10.1007/s10071-009-0279-z
Herron, M., Shofer, F., & Reisner, I. (2009). Survey of the use and outcome of confrontational and non-confrontational training methods in client-owned dogs showing undesired behaviors Applied Animal Behaviour Science, 117 (1-2), 47-54 DOI: 10.1016/j.applanim.2008.12.011
Hiby, E.F., Rooney, N.J., & Bradshaw, J.W.S. (2004). Dog training methods: Their use, effectiveness and interaction with behaviour and welfare Animal Welfare, 13, 63-69
McGowan, R., Rehn, T., Norling, Y., & Keeling, L. (2013). Positive affect and learning: exploring the “Eureka Effect” in dogs Animal Cognition, 17 (3), 577-587 DOI: 10.1007/s10071-013-0688-x
Rooney, N., & Cowan, S. (2011). Training methods and owner–dog interactions: Links with dog behaviour and learning ability Applied Animal Behaviour Science, 132 (3-4), 169-177 DOI: 10.1016/j.applanim.2011.03.007