from the world's big
Why Traveling Abroad Makes Us More Creative
Like many college students, I took a semester abroad. I spent the first half of my junior year in London taking classes at UCL, exploring the museums, and learning the difference between two pints, two pounds and two pence. After a few lovely months on the “other” side of the pond I returned home feeling cultured. Of course, the difference between London and New York (where I went to school) was small. But the UK nonetheless influenced me to see the world a bit differently.
Such are the benefits of travel. A few weeks or months in a foreign country won’t necessarily transform our lives, but wandering the streets of Helsinki, Harare or Hong Kong leaves a residue on our minds. Returning home, this cultural footprint is hard to ignore and difficult to identify. Something's different, but what?
Given the importance of traveling abroad, it’s no surprise that psychologists study how these experiences affect our cognition. Do they make us smarter or more open-minded? Does learning a foreign language boost IQ? Is it a good idea to live outside of your native country for a while? Consider a study conducted by Lile Jia and his colleagues at Indiana University.
In one experiment the team of psychologists asked participants to list as many different modes of transportation as possible. They explained that the task was created by either Indiana University students studying in Greece (distant condition) or by Indiana University students studying in Indiana (near condition). This small ripple turned out to have large effects: participants in the distant condition generated more modes of transportation and were more original with their ideas.
The second experiment demonstrated similar results. The team asked participants to solve three insight problems. Here’s an example of one:
A prisoner was attempting to escape from a tower. He found a rope in his cell that was half as long enough to permit him to reach the ground safely. He divided the rope in half, tied the two parts together, and escaped. How could he have done this?
Like the first experiment, Jia and his team told participants that the questions came from either a research institute “around 2,000 miles away” or in Indiana “2 miles away.” (In a control condition they did not reference a location). Again, the researchers found that participants in the distant condition generated more solutions than participants in the other two conditions.
A ScientificAmerican.com article on Jia’s study summarizes the results this way:
This pair of studies suggests that even minimal cues of psychological distance can make us more creative. Although the geographical origin of the various tasks was completely irrelevant – it shouldn’t have mattered where the questions came from – simply telling subjects that they came from somewhere far away led to more creative thoughts.
In Imagine, Jonah Lehrer parallels this research with a 2009 study out of the Kellogg School of Management and INSEAD. The researchers “reported that students who lived abroad for an extended period were significantly more likely to solve a difficult creativity problem than students who had never lived outside of their birth country.” Lehrer concludes that, “the experience of another culture endows the traveler with a valuable open-mindedness, making it easier for him or her to realize that a single thing can have multiple meanings.”
It’s unclear if this finding is causal or correlative – students who go abroad might be endowed with an open and creative mindset in the first place – but the point remains: diverse experiences are good for creativity because they influence us to look at problems from multiple points of view.
This brings me to a brand new study out of Tel Aviv University’s School of Psychological Sciences conducted by professor Nira Liberman and a team of her students. They wanted to see if “expansive thinking” improves the creative output of 6 to 9 year olds.
Their experiment was straightforward. The researchers gave the kids a series of photographs displaying nearby objects (a pencil on a desk) and distant objects (a picture of the Milky Way galaxy). Here’s the important part: half of the kids started with the nearby objects and progressed to more distant ones (expansive mindset); the other half saw the photos in reverse order (contractive mindset).
Next, the kids tackled several creativity tests in which they were given an object and asked to name as many different uses for it. The tasks were designed to test “outside of the box” thinking. For example, if the object was a paper clip, an unimaginative response would be to hold paper. More creative answers, on the other hand, would be “a bookmark,” or “Christmas tree decorations.”
Liberman found that kids in the expansive mindset scored significantly better on all measures of creativity. They came up a greater number of uses and more creative uses for the objects. Why? According to Liberman, “spatial distance, as opposed to spatial proximity, was clearly shown to enhance creative performance…. [and] psychological distance can help to foster creativity because it encourages us to think abstractly.”
Two important findings come out of Liberman’s research. The first is that creativity can be taught. David Kelley makes this point precisely in a recent TED talk. Drawing upon personal experience and years of research, Kelley puts it this way:
Don’t let people divide the world into the creative and the non-creative like it’s some God given thing…. People [should] realize they are naturally creative and… these people should let their ideas fly. They should achieve… self-efficacy, [meaning they] should do what they set out to do… And reach a place of creative confidence.
The second point brings me back to London. One way to kill creativity and abstract thinking – two cognitive attributes vital in the 21st century economy – is to maintain a “here and now” perspective. London steered me away from this mindset; it influenced me to adopt a more open-minded perspective.
To be sure, my leisurely strolls through the British Museum didn’t make me smarter, and by no means was I “culturally transformed” upon hearing that 'soccer' was actually 'football'. But it’s remarkable what you can learn by sitting in an English pub for a few hours. For starters, pints are two pounds, not two pence.
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.
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>
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.