from the world's big
The Philosophical Dog
Sam Gosling, Ph.D., is an associate professor of psychology at the University of Texas at Austin. His work has been widely covered in the media, including The New York Times, Psychology Today, NPR, and "Good Morning America," and his research is featured in Malcolm Gladwell's "Blink." Gosling is the recipient of the American Psychological Association's Distinguished Scientific Award for Early Career Contribution. His first book, Snoop, was a New Scientist Editor's Pick for top books of 2008. His most recent research has focused on how animal psychology can inform theories of human personality and social psychology.
Question: Can animals have personalities?\r\n
Sam Gosling: Well, yeah, for a long time we've been looking at personality in nonhuman animals. And when we started doing it, I have to say we—it met with a lot of resistance; resistance from people who thought it was anthropomorphic to talk about personality in animals. And there certainly is anthropomorphism that goes on. So in one of our early studies we didn't have any measures specifically for animals, so we were just using human instruments on animals. So we were asking, for example, owners to rate their dogs on a human personality instrument. And they did that very effectively, so they were happy to rate their dogs on things like whether it's aggressive and friendly and maybe—you know, high-strung—sorts of things you could easily see applying to animals. But we wondered what would happen when they got to some of the words which you'd think would be a greater stretch. And one of the terms on the questionnaire was philosophical. So when people come to rate their dogs at philosophical, we wondered what people would do. Would they leave it blank? Would they like write a note on it? Would they, you know, ask us, hey, I don't understand; how could I rate—we wondered what would happen. What in fact happened was, people perfectly happily rated their dogs on philosophical. They—you know, they didn't even pause.\r\n
Now, dogs aren't philosophical; at least, they're not philosophical in the way that humans may be philosophical. They may appear as though they're philosophical. So this really is a case of anthropomorphism. So anthropomorphism clearly does go on. But just because it goes on, that doesn't mean we have to like shrug our shoulders and walk away. It means we just have to be careful. It doesn't mean that every time we talk about personality in an animal it's anthropomorphism. Some of it might be; some of it might not be. And so our initial research was really saying, can we measure personality in animals in a reliable, valid way? And we found we could. And we worked in all kinds of species, so we've worked with dogs and cats, spotted hyenas; we worked with chimpanzees; we've recently even worked with squid, looking for personality in squid. And once you can measure personality in animals, then you can do all kinds of really interesting things.\r\n
First of all, you can ask questions within animals themselves, so just looking at how does personality evolve. So this is—you know, behavioral ecologists would be interested in this—just within animals in their own right. You can also look at animals and say, okay, what can we learn—what can studies of animal personality tell us about human personality? So we're using that as a model for learning about humans. We have one study going on right now where we're trying to look at risk-taking behavior in chimpanzees, because we're very interested in risk-taking because high risk-takers, they get themselves and others into trouble; they drive fast, they take drugs, they have unsafe sex, they do all kinds of things that we care about. So we're trying to say, in this more controlled environment of looking at chimpanzees, what can we learn about the biological and genetic basis of risk-taking that will help us understand it and treat it in—or come up with interventions—in human populations? And then the third area that animal personality has applications is in applied fields.\r\n
So can we identify dogs at shelters that are best matched to certain owners? Many—most people who return dogs to dog shelters after they haven't worked out, it's because they—it's the behavioral problems. It didn't work out right, which is really personality. So can we do something akin to what goes on with romantic matching? Rather than matching, you know, person to person, can we have a d-Harmony, you know, e-Harmony for dogs, where we're matching dogs to their owners in the hope of trying to make those relationships more effective in the long term? And we have a number of projects going on looking at that right now. And then another way that's very practically useful is trying to find dogs that are best suited to certain tasks. So just like some people would be better librarians versus journalists versus salespeople, the idea is, are some dogs suited to tasks? One of the tasks that dogs are most—one of the tasks that we see a lot of dogs used in is in drug detection and explosives detection. So we're working right now on explosives detection dogs, saying, can we find dogs that have a personality that's well suited to that occupation? When I first started—came into that field, I thought, well, what does it have to do with personality? I thought the dogs that are going to be really good are the ones that had very good noses, that are very good at detecting where the various explosive **** are through their noses. But it turns out that most of the dogs can find most of the explosives most of the time in conditions where it's a quiet air-conditioned warehouse in Texas. Most of the dogs can find most of the bombs most of the time. However, when you're out in the field—when you're in Iraq—and there's helicopters flying above, and there's gunfire, and there's herds of goats running by, and the handler is anxious, and all kinds of things going on, some of the dogs can't handle that. They can't continue to work. You need dogs that are going to be able to handle that stress. And when there are frightening things, when there is a loud noise, can they recover quickly and get back to work quickly? So it turns out that although you have to be able to detect the bombs with your nose as a basis, whether or not you will be able to effectively implement your nose in the field is really determined by personality characteristics.\r\n
Question: How has your research affected your own relationship with animals?\r\n
Sam Gosling: I don't have pets. But, you know, one of the things that I found very helpful is thinking about breeds. Like many people, I used to be very dependent on breeds as a basis for predicting how an animal will behave. And even when I started studying this, I continued to believe, well, surely—one of the reasons, one of the driving forces in breeds, is their behavior. So we do asso—tend to think that certain breeds have certain personalities. So in approaching those, even after I started this work I continued to believe that until I saw the data. And what's really amazing is that there is so much variation even within breed. And that—you know, we were talking about stereotypes. We talked about—we have stereotypes of certain breeds. Sure, that's a good, maybe, starting point. But you have to be willing to drop that stereotype very, very quickly, because so much of the differences in personality is accounted for by individualities within the breed, not the breed itself.
Recorded on November 6, 2009
Interviewed by Austin Allen
Understanding animals’ "personalities," says psychologist Sam Gosling, can help us better match them with owners and tasks. We may even someday see a "D-Harmony" for dogs and humans.
If machines develop consciousness, or if we manage to give it to them, the human-robot dynamic will forever be different.
- Does AI—and, more specifically, conscious AI—deserve moral rights? In this thought exploration, evolutionary biologist Richard Dawkins, ethics and tech professor Joanna Bryson, philosopher and cognitive scientist Susan Schneider, physicist Max Tegmark, philosopher Peter Singer, and bioethicist Glenn Cohen all weigh in on the question of AI rights.
- Given the grave tragedy of slavery throughout human history, philosophers and technologists must answer this question ahead of technological development to avoid humanity creating a slave class of conscious beings.
- One potential safeguard against that? Regulation. Once we define the context in which AI requires rights, the simplest solution may be to not build that thing.
Duke University researchers might have solved a half-century old problem.
- Duke University researchers created a hydrogel that appears to be as strong and flexible as human cartilage.
- The blend of three polymers provides enough flexibility and durability to mimic the knee.
- The next step is to test this hydrogel in sheep; human use can take at least three years.
Duke researchers have developed the first gel-based synthetic cartilage with the strength of the real thing. A quarter-sized disc of the material can withstand the weight of a 100-pound kettlebell without tearing or losing its shape.
Photo: Feichen Yang.<p>That's the word from a team in the Department of Chemistry and Department of Mechanical Engineering and Materials Science at Duke University. Their <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.202003451" target="_blank">new paper</a>, published in the journal,<em> Advanced Functional Materials</em>, details this exciting evolution of this frustrating joint.<br></p><p>Researchers have sought materials strong and versatile enough to repair a knee since at least the seventies. This new hydrogel, comprised of three polymers, might be it. When two of the polymers are stretched, a third keeps the entire structure intact. When pulled 100,000 times, the cartilage held up as well as materials used in bone implants. The team also rubbed the hydrogel against natural cartilage a million times and found it to be as wear-resistant as the real thing. </p><p>The hydrogel has the appearance of Jell-O and is comprised of 60 percent water. Co-author, Feichen Yang, <a href="https://today.duke.edu/2020/06/lab-first-cartilage-mimicking-gel-strong-enough-knees" target="_blank">says</a> this network of polymers is particularly durable: "Only this combination of all three components is both flexible and stiff and therefore strong." </p><p> As with any new material, a lot of testing must be conducted. They don't foresee this hydrogel being implanted into human bodies for at least three years. The next step is to test it out in sheep. </p><p>Still, this is an exciting step forward in the rehabilitation of one of our trickiest joints. Given the potential reward, the wait is worth it. </p><p><span></span>--</p><p><em>Stay in touch with Derek on <a href="http://www.twitter.com/derekberes" target="_blank">Twitter</a>, <a href="https://www.facebook.com/DerekBeresdotcom" target="_blank">Facebook</a> and <a href="https://derekberes.substack.com/" target="_blank">Substack</a>. His next book is</em> "<em>Hero's Dose: The Case For Psychedelics in Ritual and Therapy."</em></p>
What would it be like to experience the 4th dimension?
Physicists have understood at least theoretically, that there may be higher dimensions, besides our normal three. The first clue came in 1905 when Einstein developed his theory of special relativity. Of course, by dimensions we’re talking about length, width, and height. Generally speaking, when we talk about a fourth dimension, it’s considered space-time. But here, physicists mean a spatial dimension beyond the normal three, not a parallel universe, as such dimensions are mistaken for in popular sci-fi shows.
An algorithm may allow doctors to assess PTSD candidates for early intervention after traumatic ER visits.
- 10-15% of people visiting emergency rooms eventually develop symptoms of long-lasting PTSD.
- Early treatment is available but there's been no way to tell who needs it.
- Using clinical data already being collected, machine learning can identify who's at risk.
The psychological scars a traumatic experience can leave behind may have a more profound effect on a person than the original traumatic experience. Long after an acute emergency is resolved, victims of post-traumatic stress disorder (PTSD) continue to suffer its consequences.
In the U.S. some 30 million patients are annually treated in emergency departments (EDs) for a range of traumatic injuries. Add to that urgent admissions to the ED with the onset of COVID-19 symptoms. Health experts predict that some 10 percent to 15 percent of these people will develop long-lasting PTSD within a year of the initial incident. While there are interventions that can help individuals avoid PTSD, there's been no reliable way to identify those most likely to need it.
That may now have changed. A multi-disciplinary team of researchers has developed a method for predicting who is most likely to develop PTSD after a traumatic emergency-room experience. Their study is published in the journal Nature Medicine.
70 data points and machine learning
Image source: Creators Collective/Unsplash
Study lead author Katharina Schultebraucks of Columbia University's Department Vagelos College of Physicians and Surgeons says:
"For many trauma patients, the ED visit is often their sole contact with the health care system. The time immediately after a traumatic injury is a critical window for identifying people at risk for PTSD and arranging appropriate follow-up treatment. The earlier we can treat those at risk, the better the likely outcomes."
The new PTSD test uses machine learning and 70 clinical data points plus a clinical stress-level assessment to develop a PTSD score for an individual that identifies their risk of acquiring the condition.
Among the 70 data points are stress hormone levels, inflammatory signals, high blood pressure, and an anxiety-level assessment. Says Schultebraucks, "We selected measures that are routinely collected in the ED and logged in the electronic medical record, plus answers to a few short questions about the psychological stress response. The idea was to create a tool that would be universally available and would add little burden to ED personnel."
Researchers used data from adult trauma survivors in Atlanta, Georgia (377 individuals) and New York City (221 individuals) to test their system.
Of this cohort, 90 percent of those predicted to be at high risk developed long-lasting PTSD symptoms within a year of the initial traumatic event — just 5 percent of people who never developed PTSD symptoms had been erroneously identified as being at risk.
On the other side of the coin, 29 percent of individuals were 'false negatives," tagged by the algorithm as not being at risk of PTSD, but then developing symptoms.
Image source: Külli Kittus/Unsplash
Schultebraucks looks forward to more testing as the researchers continue to refine their algorithm and to instill confidence in the approach among ED clinicians: "Because previous models for predicting PTSD risk have not been validated in independent samples like our model, they haven't been adopted in clinical practice." She expects that, "Testing and validation of our model in larger samples will be necessary for the algorithm to be ready-to-use in the general population."
"Currently only 7% of level-1 trauma centers routinely screen for PTSD," notes Schultebraucks. "We hope that the algorithm will provide ED clinicians with a rapid, automatic readout that they could use for discharge planning and the prevention of PTSD." She envisions the algorithm being implemented in the future as a feature of electronic medical records.
The researchers also plan to test their algorithm at predicting PTSD in people whose traumatic experiences come in the form of health events such as heart attacks and strokes, as opposed to visits to the emergency department.