Canine eggheads enjoy playing with toys and retrieving objects.
“Gifted” dogs, who have a rare talent for learning lots of words for objects easily, also turn out to be more playful than other dogs, a new study finds.
Prior research in humans has shown a link between playfulness and problem-solving abilities, so animal behavior researchers from Eötvös Loránd University in Budapest, Hungary, wondered if the same was true for rollicking pups.
What is a gifted dog? In the new study, it was Border collies who had proven in prior research that they were able to learn as many as 12 new words per week and then retain them for months.
To take a closer look at the possible association between giftedness and playfulness in dogs, Claudia Fugazza, a researcher in the university’s department of ethology (the study of animal behavior), and her colleagues asked the owners of 165 Border collies to fill out dog personality questionnaires. Twenty-one of the dogs were gifted and the other 114 were just randomly selected with no testing for word learning ability.
The surveys assessed the personality of the animals in five categories:
- Fearfulness, including fear of people, nonsocial fear, fear of dogs, fear of handling.
- Aggression toward people, including general aggression and aggression in certain situations.
- Activity/Excitability, including excitability, playfulness, active engagement and companionability.
- Responsiveness, such as trainability and controllability.
- Aggression toward animals, including aggression toward dogs, prey drive and dominance over other dogs.
For the evaluation of playfulness the owners were asked to rate their dogs in three areas:
- Dog gets bored in play quickly.
- Dog enjoys playing with toys.
- Dog retrieves objects, such as balls, toys and sticks.
The researchers focused solely on Border collies because earlier experiments found that the breed is more likely to be good at learning new words compared to others.
After collecting the survey responses, the researchers then compared the responses from owners of gifted dogs to those from the owners of dogs who had not been identified as gifted.
Playfulness was the only personality trait that was consistently different between the two groups.
It’s not clear from the study whether it’s the playfulness that helps the dogs learn more words, or whether the extra playful ones ended up with more opportunities to learn, said Fugazza, the study’s lead author, said in an email. That’s because gifted dogs tend to learn words for objects when their owners are playing with them.
Are playful dogs smarter?
Not exactly.
“Intelligence is the result of diverse cognitive traits that allow individuals to flexibly solve different types of problems,” Fugazza explained. “Giftedness refers to an extremely good capacity in the case of a specific skill.”
So, maybe gifted dogs are like people who score high on the verbal part of the SATs.
If your pup doesn’t learn words easily, it doesn’t mean it’s a dumb dog. Adam Boyko, an expert in canine genomics, reassures owners that canine intelligence is more than that.
“Both dogs and wolves are playful when they are puppies, but dogs really evolved to living in the human environment and to responding to social cues,” said Boyko, a specialist in the genetics of behavior and an associate professor at the Cornell University College of Veterinary Medicine. “It’s not surprising that the more playful ones exhibit better learning in the domain of learning human words. And it’s not surprising that Border collies, who are bred to respond to human cues, show the propensity to learn words more than other breeds.”
Other breeds of dogs might show intelligence in other ways, Boyko said. For example, wolves are very intelligent although they don’t typically pick up on human cues.
“But they can figure out how to escape,” said Boyko. “Where dogs would look for a person to help, wolves would see how humans did a latch and lock and then the wolves would do it themselves to get out.”
Boyko would like to take the study a step further and look at the genetics of the gifted dogs.
“This is a tantalizing correlation that might be meaningful if you are trying to build better service dogs,” he said.
One thing that can’t be determined from the study is whether the playfulness trait spurred owners to interact more with their dogs and thus teach them more words, said Dr. Nicholas Dodman, a professor emeritus at the Cummings School of Veterinary Medicine at Tufts University, CEO and president of the Center for Canine Behavior Studies and the author of “Pets on the Couch: Neurotic Dogs, Compulsive Cats, Anxious Birds and the New Science of Animal Psychiatry.”
Dodman said the study is interesting but needs to be replicated in a larger number of dogs.
“I would also like to see it done in a different breed,” he said.
The new findings might help people who want to buy or adopt a puppy. It suggests that playfulness might be a good attribute to consider.
“The playful ones might be more likely to interact with a person, assimilate words more easily and be more intelligent,” said Dodman.
Dogs have nose for COVID-19, studies show. Why aren’t they used for testing?
As the availability of COVID-19 tests dwindle across Canada, another option to detect the virus in the form of a furry friend may be the next best thing.
Multiple studies show that dogs can be more effective, faster and potentially less expensive than the current tests on the market.
The research has grown since 2020, with University of California Santa Barbara professor Tommy Dickey finding the collective research shows trained scent dogs are “as effective and often more effective” than both the rapid antigen tests many people keep in their homes, and even the PCR tests deployed at clinics and hospitals.
But even with studies showing their effectiveness, COVID-19-detecting dogs are deployed only in certain jurisdictions in various countries.
One such place is the Canines for Care program at Vancouver Coastal Health (VCH), which started looking into the possibility of training dogs to detect COVID-19 in early 2021.
Dr. Marthe Charles, division head of medical microbiology and infection prevention and control at VCH, said the idea stemmed from the early reliance on laboratory testing.
“I think there was a will from public health at the time and also from the various levels of government to try to find a way that was fast, accurate and non-invasive to be able to detect and train as many people as possible,” Charles told Global News in an interview.
Three dogs — two Labrador retrievers and an English springer spaniel — were brought in for training. The dogs were exposed to items such as masks that were worn by patients either negative or positive for the virus. This trained the dogs to recognize what is and is not COVID-19.
Charles said the dogs were trained since being puppies to associate the scent of COVID-19 with food and were rewarded each time they correctly detected a positive case of the virus.
“So from early on in their lives, they’ve associated the scent of a case of COVID to a rewarding scent,” she explained.
This reward method is not just used by VCM. It was also used with a group of dogs sourced in early 2021 for a French study, trained at detection using toys — usually tennis balls — as rewards.
Dr. Carla Simon, owner of Hunter’s Heart Scent Detection Canines in Calgary, said this method of training dogs is common. By using rewards, it can help motivate them to find the scent.
“We would pair, let’s say, the sweat samples with COVID, with their reward, and they notice that every time they find their reward, there’s that special smell,” she explained. “We just have to make it rewarding for the dog.”
She added, however, that the dog chooses the reward so trainers can ensure the canines “show up every day and want to do their job.”
Earlier this month, Dickey along with Heather Junqueira of BioScent, Inc. gathered several peer-reviewed studies into a review that was published in the Journal of Osteopathic Medicine. Dickey said the number of peer-reviewed studies over the past few years went from four to 29, incorporating the work of more than 400 scientists from more than 30 countries and 31,000 samples.
The review noted the effectiveness of dogs’ ability to detect COVID-19 comes down to their noses.
“The nose is not like humans,” Simon said. “It’s massively different, orders of magnitude different, and they can detect things without us being able to smell them.”
Humans have about five to six million olfactory receptors in their noses, while dogs have hundreds of millions. One-third of their brain is devoted to the interpretation of smell — something only five per cent of a human’s brain is committed to, according to Dickey’s review.
The study found dogs’ noses may even be able to detect pre-symptomatic COVID-19 cases, or even those who will develop symptoms later.
Dickey told us in an interview that this could help limit or stop the virus from spreading.
“The longer the wait is between your test and your result, that’s a latent period,” he said. “During that time you’re running around spreading COVID and you don’t know it. The dogs with a direct sniff will be done in seconds.”
Many of the studies conducted, including the work at VCH through the Canine for Care program, have shown dogs’ ability to detect the disease correctly with a success rate of more than 90 per cent. Additionally, the studies also showed a high speed at which the dogs could identify cases. In one study in Thailand, researchers reported the dogs had gone through thousands of samples in just a few weeks.
“The dogs take only one to two seconds to detect the virus per sample. Once they detect a patient, they will sit down,” said Chulalongkorn University professor Kaywalee Chatdarong, who led the 2021 project. “This takes only one to two seconds. Within one minute, they can manage to go through 60 samples.”
Even though the research suggested deploying scent-detection dogs could also be less expensive than rapid or PCR tests, Charles cautioned the logistics that go into training the dog is where it becomes “more prohibitive.”
In VCH’s case, training of the dogs included the medical microbiology lab to provide samples for use, working with infection prevention teams and control nurses, and if a dog identifies an area of concern, cleaning services may need to be utilized. And when it comes to rolling out testing using the dogs, enough staffing is needed for mass screening.
Despite this, while Charles says deploying the dogs widely could be difficult due to staffing and training, they are still one of several tools that can be used in COVID-19 detection.
“I think the way to see those dogs from my perspective is really like another tool in the toolbox and trying to prevent further transmission of pathogen of concern,” she said.
Dickey and Junqueira say dogs should have a place in “serious diagnostic methodology” including in helping should the world face a future pandemic.
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