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Six Amazing Facts About Canine Perception

one-with-nature

Have you ever wondered how a dog perceives the world? If you're like many pet parents, at some point you've asked your dog, "What are you thinking right now?"

We already know that dogs have a sense of smell that puts our own to shame. But how do they use all of this sensory information? According to a brand new research study, the answer to that question just became a good bit clearer.

Researchers found that canines actually construct a mental image of what they smell, before they see it. Furthermore, behavioral scientists were amazed to find that the dogs in their study expressed surprise when the object they thought they were tracking turned out to be different than they expected! 

In light of this remarkable view into canine perception, we're taking a closer look at how dogs view, interact and understand the world.

To view the full-size PDF, simply click on the image below. 

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Interested in more details about the latest ground-breaking research into canine perception? Check out the study below!

Bräuer, J., & Belger, J. (2018). A ball is not a Kong: Odor representation and search behavior in domestic dogs (Canis familiaris) of different education. Journal of Comparative Psychology. http://dx.doi.org/10.1037/com0000115

The Complexity of Canine Memory

Have you ever sat staring deeply into your dog’s eyes, wondering “I wonder what you’re thinking?” Sure, they give us clues here and there, but as whole, the workings of your dog’s mind remains a mystery.

But there’s mounting evidence that we may have underestimated their mental capacities. I know when I was going through school and we would use words describing the emotions the pets seemed to feeling - love, anxiety, fear - we were often shut down with a stern, “Don’t anthropomorphize!” It was assumed that only humans were capable of such human-like emotions.

As we’ve studied more the amazing bonds that exist between humans and dogs, we’ve gotten better insight into the inner workings of their doggie brains. And while it’s true that we can’t say with 100% certainty what a dog thinks and feels (because you’d actually need to be able to talk to a dog in order for him to tell you that), I can tell you that the more we learn about their inner workings, the gap between people and dogs is narrowing. Each new study offers amazing insight into how smart, individual, and yes – emotional – they really are.

One of the most common tropes we hear about dogs is, “They live in the moment,” which assumes they don’t spend too much time thinking about the past. But all of us who share our lives with dogs have seen them react to something in a way that indicates they sure do remember things, thank you very much! As a veterinarian, “white coat syndrome”, the fearful reaction of a dog to a veterinarian in a white lab coat, is so well-documented that many of us just stopped wearing the jackets entirely.

And now science is finally showing, beyond a shadow of a doubt, that dogs remember much more than we previously thought possible.

A recent study of 17 dogs in Current Biology explored the idea of episodic memory in dogs. They began by training the dogs to “Do as I do”, i.e., to imitate their trainer’s behavior. In this case, the dogs were aware they were receiving a cue, a signal to say “pay attention to what I’m doing.”

Then the researchers repeated the experiment, but without giving the “Do as I do” cue beforehand. Regardless of what the person was doing, the dog was instructed to lie down. Afterwards, trainers gave the dogs the command to repeat what they had just observed. This forced the dogs to recall what they had observed using episodic memory. This form of memory centers around the ability to recall a specific event from the past, but you didn’t know you were supposed to remember it at the time it happened. Despite showing signs of surprise, the dogs were able to recall what they had seen and imitate the person’s actions.

By demonstrating this ability to mimic, the study designers showed that dogs are watching and storing what they see all around them. Like people, they appear to be dumping all of that input into a short term memory bank, and if the information isn’t needed, it gets tossed out. Much the same way I can tell you what I had for dinner last night but not last month, a dog’s brain is quite capable of assessing memories and storing those considered pertinent for survival. As a social species whose evolution is closely tied to ours, it makes sense that they actually think in many of the same ways.

So, the next time you do something embarrassing around your pup, don’t be so quick to think they won’t remember it. At least we know for certain they won’t be spilling our secrets via speech, right?

Dr. Jane Bicks

The Amazing, Intuitive Empathy of Dogs

When I was 12 years old, fully in the throes of junior high angst, I had a difficult time telling others about painful events. Being called hurtful names by other kids. The time my backpack was stolen and thrown over a fence. About the bullies who teased me. I didn’t want to tell my parents because I didn’t think they would be able to change anything, and I worried that it would end up just making them sad. So … I told my dog.

At the time, I thought I was kind of a weirdo for confiding in my dog. But as I grew older and devoted my life to working with animals and people, I found to my delight that dogs are some of the world’s best counselors. They give veterans with PTSD the strength to venture outside. They help shy children work on their speaking skills. They sit in courtrooms while victims testify about terrifying events. They lie quietly next to people in hospitals who simply need a soft head to pat. They are sometimes as effective as medications in controlling anxiety.

I’ve often heard it said that dogs can sense when someone they love needs extra support, but until I witnessed it firsthand, I had no idea just how powerful that connection could be. When my mother was diagnosed with terminal brain cancer last year and came to live with us, I was beyond petrified, as was the entire family. It was so hard to simply sit there and be present without bursting into tears, which would only upset Mom more.

My dog, on the other hand, had no hesitation about inserting himself in the middle of it all. Brody became an ever-present companion by her side, a steady escort that helped to keep her upright when her balance was off, a head on her lap while she tearfully signed her Hospice admission papers, and a gentle snorer at her side every night. When she peacefully passed with my father by her side, Brody was also there to see her off.

How can I possibly explain what burden he bore during that time? He was not just there for my Mom but also for me, the kids and especially my dad. With my mother gone, Brody immediately transferred his watchful attention to him in a way that he never had before. Together, they went on long thoughtful walks during that period. There is no possible explanation other than the fact that Brody knew exactly what we needed from him.

Dogs see us at our worst and, unlike many people in our lives, are unafraid to be right there in the thick of things without judgment or discomfort. They are such a gift to us! I feel so fortunate to be able to give back and help their lives be long and wonderful in return.

Have you ever had a dog who went above and beyond the call of duty in a time of pain or need?

Tell us your remarkable story of canine comforting in the comments section below. And be sure to share this post with your friends on Twitter and Facebook.

How Dogs and People Evolved Together

People live with and love many kinds of animals, but there’s just something special about our relationship with our dogs. We all get the sense that they need us the same way that we need them. Humans and canines, bonded together by some strange and immutable force. It’s almost as if we evolved for each other!

And there’s evidence to support that actually, we did. Here are some fascinating facts that scientists have discovered about the ancient, intertwined bond between humankind and canines…

1. Dogs first split off the wolf genome about 32,000 years ago.
Recently, scientists collected DNA from gray wolves as well as various dog breeds from across the globe. By comparing these samples against the DNA taken from an ancient dog skull uncovered in a Siberian mountain range, Chinese researchers determined that modern dogs split off from the wolf genome approximately 32,000 years ago … the earliest evidence ever discovered!

2. Dogs may have helped us beat Neanderthals in the evolution game.
While Neanderthals existed nearly 250,000 years ago, we Homo sapiens are a little newer on the scene: about 40,000 years ago or so. While no one is entirely sure why they became extinct whereas we flourished, some anthropologists surmise that domesticating dogs played a key role in allowing us to hunt more efficiently and therefore survive.

3. Their affable personality ensured their survival.
While wolves are naturally reserved and skittish around humans, dogs easily accept people as fellow pack members. From an evolutionary standpoint, the wolves who were comfortable enough approaching humans to beg off scraps possibly marked the first step in the domestication process. Which just goes to prove that dogs can’t help their genial nature!

4. Their body chemistry adapted closer to what we eat.
Right around the same time that human society moved from a hunting-based to a farming-based lifestyle, we started to further develop our aptitude for digesting starches. So did dogs. A 2013 study from the journal Nature found ten genes responsible for starch digestion that are not present in the carnivorous wolf species. Like us, dogs are true omnivores.

5. Modern dogs are more alike than they are different.
It’s hard to believe that hulking Great Danes and dainty teacup poodles are representatives of the same species, but they are! Their extensive physical variations are the result of selective breeding programs, which have only really been in vogue for less than 200 years. Without humans manipulating the breeding process, the huge disparities we know today would not exist.

Dr V Dr. Jessica Vogelsang, DVM

Do Dogs Suffer from Depression?

Sad Pug

Pet parents have asked me if dogs can experience depression. In almost every case, the question is prompted by troubling behavior and not just simple curiosity. Well, dogs can most certainly exhibit obvious signs of depression, such as loss of appetite or declining interest in previously enjoyed activities. And then there are symptoms not readily recognized as depressive: anxiety, fearfulness, aggression, various destructive behaviors and even hiding from people. Are these last signs indicative of depression, a complicated emotional disturbance, or do they point to something else altogether? 

In humans, depression ranges from temporary episodes of sadness to severe, persistent clinical depression, which persists for significant periods of time. Both are marked by a depressed mood and a loss of interest and lack of pleasure.

Dogs are highly intelligent, emotional creatures. We know that they can read our facial expressions, learn complex commands, express fear and joy, and can get stressed, but can they be depressed? Behavioral scientists not only say ‘yes’, but are surprised by how prevalent depression is among canines. In fact, in a 2013 British study, scientists discovered something shocking … nearly one in four dogs in the UK was suffering from some form of depression.

Because we cannot simply ask our dogs if they’re depressed, how can we know for sure what’s going on? Well, the experts say, look to sudden changes in behavior which cannot be attributed to a medical problem. In such cases, depression offers the most logical rationale. But, on an emotional level, we also have our own sense of empathy as a guide. As pet parents, we often just intuitively know something’s up.

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Canines often express signs of depression after loss of a family member, whether it’s a human or another animal. When someone close to a dog is no longer around, they can be listless, lose their appetite, be cranky, pace frantically, regress in house-training, sleep for even longer periods, and even develop destructive behaviors such as digging or chewing. Some dogs can develop anxiety-ridden behaviors, such as prolonged trembling, while others experience a significant change in personality (outgoing, becoming withdrawn and distrustful).

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Some dogs can exhibit depressive behaviors if they don’t get enough exercise or attention. Even changes in routine, ranging from serious (loss of a caretaker) to the seemingly harmless (changing a pet’s bed) can result in the symptoms listed above.

Unfortunately, changes in behavior can signal an underlying medical problem. Painful conditions such as arthritis, pinched nerves, bladder infections, or gastrointestinal inflammation can elicit behavioral changes, and hormonal conditions such as hypothyroidism can mimic the signs of depression in dogs. If you notice any sudden changes in your dog’s behavior, schedule an appointment with your veterinarian. With a physical exam, and any necessary tests administered as warranted (such as blood work, urine testing and x-rays), your vet will be better equipped to determine potential causes and likely treatments.

Sad Shaggy Dog

HOW TO DEAL WITH YOUR DOG’S DEPRESSION

If your dog seems inordinately sad or becomes listless, you do have some options for home therapy.

Be intentional about the time you spend with your dog. Be prepared to dote on your pup, (yes, even more than usual!), and shower them with attention, like you would with a newly adopted dog.

Renew your commitment to exercise with daily walks … sunshine and fresh air can do wonders for both you and your dog. Plus, you’ll be adding a little adventure to your dog’s day. By taking long but unhurried walks, you allow your dog the time and space to roam a bit and smell all the scents. Remember, they can detect a whole host of odors, building timelines and creating mental maps of previous activity in any given spot … think of it like canine storytelling.

While at home, make sure your pup has plenty of good chew toys, and engage in some training sessions to stimulate positive mental activity.

In spite of all this, if your dog is still experiencing chronic depression, your veterinarian can recommend an appropriate medication to help manage, possibly even resolve, the illness. Your vet may recommend a consult with a board-certified veterinarian behaviorist. Certified by the American College of Veterinary Behaviorists, these experts are especially good at understanding such situations and knowing which pharmaceuticals will be most effective.

Have you ever known a canine who suffered from depression? How did you know? And what, if anything, were you able to do to help alleviate the condition? We’d really like to know about your experience, so please submit your comments below. You never know … something you share might mean the world to a pet parent searching for a solution, even if it’s simply the solace of knowing others have dealt with similar issues.

Thank you for all you do to make the world a better place for companion animals.

Dr Jane Bicks  Dr. Jane Bicks

REFERENCES:
In Defence of Dogs: Why Dogs Need Our Understanding, by John Bradshaw, 2011, ISBN: 9780141046495.
http://www.telegraph.co.uk/news/health/news/10251465/One-in-four-dogs-suffering-depression.html

Do Dogs Experience Guilt?

Dog in Time Out

If you have had the opportunity to share your life with a dog, then you are probably familiar with ‘the guilty look’. Dog lovers will instantly recognize this classic expression as the one your pup adopts when you discover that he’s gotten into the trash, chewed up your good shoes, or dug a deep pit in your yard. But is he experiencing feelings of guilt behind those puppy dog eyes?

We certainly seem to think so. Seventy-four percent of dog lovers believe that their pups experience some form of guilt. But is it the same sort of guilt we feel, or is it a complex canine behavior that has been anthropomorphized, and is perhaps triggered by something else entirely?

This question is so hotly debated, canine behavior researchers decided to test the theory, and hopefully provide some answers. Consider two recent, credible studies that explored ‘the guilty look’.

In both, researchers ingeniously set up conditions to discover the origins of guilty behaviors in dogs. Based on their findings, they ascertained that the dog’s reaction is tied to the owner’s scolding, not the previous misdeed. This certainly seems to back up what many of us suspect, that humans have a natural tendency to want to interpret animal behavior in human terms.

There is plenty of evidence for what scientists refer to as primary emotions, such as happiness and fear, in non-human animals. Empirical evidence for secondary emotions like pride and jealousy, however, is extremely rare in animal cognition literature. The argument usually given for this lack of evidence is that such secondary emotions seem to require a higher level of cognitive sophistication, particularly when it comes to self-awareness or self-consciousness, that may not exist in non-human animals.

Put simply, guilt is complicated.

A group of canine cognition researchers from Eotvos Lorand University in Budapest, published several studies in Applied Animal Behavior Science investigating ‘the guilty look’. In a 2009 study, pet parents reported that their dogs sometimes display guilty behavior when greeting owners. They claimed to be unaware of their dog doing anything bad, and asserted that it was the dog’s guilty behavior that told them about the dog’s infraction. However, researchers found there was no significant difference between obedient and disobedient dogs in their display of ‘guilty looks’ after having the opportunity to break a rule when the pet parents were absent.

Dog Looking Guilty

But wait, say pet parents. ‘Guilty look’ behaviors are displayed even when dogs aren’t scolded. So, in a 2015 study these same behaviorists investigated whether the dogs' own actions or the evidence of a misdeed might serve as triggering cue for the guilty behavior. If the ‘guilty look’ was based on some sort of ‘guilt’ as often claimed by dog lovers, then the cue triggering this behavior would have to be linked to the dog’s own action, namely whether the dog has or has not done something “bad”. They tested this by manipulating whether or not dogs ate a ‘forbidden’ food item and whether or not the food was visible upon the return of pet parents. The findings indicate that the dogs did not show the ‘guilty look’ in the absence of scolding. So, at least in this study, the ‘guilty look’ was not influenced by the dog’s own bad behavior.

So, we have ample anecdotal evidence from pet parents, but little evidence from published studies to support this claim.

What do you think? Can dogs express the complicated emotion of guilt, or is it a series of subordinate behaviors that originate from the social cues given by their pet parents? Leave your comments in the section below!

References

Hecht, J., et al., Behavioral assessment and owner perceptions of behaviors associated with guilt in dogs. Appl. Anim. Behav. Sci. (2012), doi:10.1016/j.applanim.2012.02.015
Horowitz A (2009). Disambiguating the "guilty look": salient prompts to a familiar dog behaviour. Behavioural processes, 81 (3), 447-52 PMID: 19520245
Ljerka Ostojić, Mladenka Tkalčić, Nicola S. Clayton Are owners' reports of their dogs’ ‘guilty look’ influenced by the dogs’ action and evidence of the misdeed? Behavioural Processess Volume 111, February 2015, Pages 97–100