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markfrankel18

This is your brain on knockoffs: The science of how we trick ourselves into not believi... - 0 views

www.salon.com/...es-into-not-believing-our-eyes

TOK arts forgery perception

shared by markfrankel18 on 30 Jan 17 - No Cached
  • In 2011, Martin Kemp, an Oxford art history professor, ran an experiment referenced in Ragai’s book, in which 14 non-specialists were shown genuine and fake “Rembrandt” paintings while undergoing brain scans. A painting was shown to them and they were told it was by Rembrandt. Another painting was shown to them and they were told it was a fake. By measuring the pleasure centers of the brain, Kemp concluded that “the way we view art is not rational.” Being told a work was authentic (whether or not it actually was) activated pleasure centers when it was shown, which was not the case when the viewer was told it was inauthentic (even if it was actually the real deal). It’s all about anticipation. If you’re poured a glass of wine and told it’s a 1955 Chateau Lafite Rothschild, you’ll enjoy it much more than if you’re told it’s a 2015 Trader Joe’s wine-in-a-box, whichever it truly happens to be. (For more on this, see my eBook single on wine forgery).
  • But while non-experts are led by being told what is authentic and what is not, clever forgers do a more elaborate version of the same thing to snare specialists. Rather than telling them “this is authentic,” which would summon a defensive reaction on the part of the expert (“Oh yeah, I’m the expert here, I’ll tell you what’s authentic and what isn’t”), they lay a trail of traps by scattering subtle clues that lead the expert into following a carefully plotted trail, but to come to their own conclusion about the authenticity of the work in question.
markfrankel18

3quarksdaily: Is Wine Tasting Nonsense? - 1 views

www.3quarksdaily.com/...is-winetasting-nonsense.html

TOK wine perception arts taste

shared by markfrankel18 on 17 Sep 14 - No Cached
  • If there is such a thing as real expertise in identifying the properties of a wine, then it must be possible to get it wrong.  If tastes, in general, were entirely subjective there would be no right answer to the question of whether, for instance, chocolate ice cream tastes of chocolate.  No one really thinks that. The fact that expert wine tasters get it wrong so often is evidence that wine tasting is harder than identifying the presence of chocolate in ice cream—not that it is utterly capricious. So tastes are not so entirely subjective that our experiences of them have no relationship to an object.
  • Furthermore, tasters can strive to eliminate environmental factors that have been shown to influence judgments about wine such as conversations, the style of music being played, and changes in the weather, etc. These are all factors that wine tasters can control by adjusting the environment in which they taste. Wine tasters, if they are to maintain credibility, must taste under the appropriate conditions. But that is no different from any other normative judgment we make. Our ability to make ethical judgments, for instance, is similarly influenced by environmental factors. We know (or should know) better than to make ethical judgments when we are excessively angry, fearful, under the influence of powerful desires, etc. Yet, it does not follow from the fact that ethical judgments can be influenced by irrelevant factors that all ethical judgments are subjective.
  • So the taste of wine (or anything else) is partly dependent on objective features of the world and partly dependent on how our view of those features has been shaped by past experience. The crucial question then is how much of a distorting lens is that past experience.
  • ...2 more annotations...
  • What is puzzling about this whole debate about the objectivity of wine critics, however, is why people want objective descriptions of wine. We don't expect scientific objectivity from art critics, literary critics, or film reviewers. The disagreements among experts in these fields are as deep as the disagreements about wine. There is no reason to think a film critic would have the same judgment about a film if viewed in a different context, in comparison with a different set of films, or after conversing about the film with other experts. Our judgments are fluid and they should be if we are to make sense of our experience. When listening to music aren't we differently affected by a song depending upon whether we are at home, in a bar, going to the beach, listening with friends or alone? Why would wine be different? The judgment of any critic is simply a snapshot at a particular time and place of an object whose meaning can vary with context. Wine criticism cannot escape this limitation.
  • What we want from critics whether of music, art, or wine is a judgment made in light of their vast experience that can show us something about the object that we might have missed without their commentary. That can be accomplished independently of whether the critic is perfectly consistent or objective. We want the critic to have a certain kind of bias, born of her unique experience, because it is that bias that enables her to taste, see, or hear what she does.
markfrankel18

When everything seems like it might cause cancer, here's how scientists determine what ... - 0 views

qz.com/...scientists-determine-what-does

TOK science proof

shared by markfrankel18 on 21 Aug 15 - No Cached
  • Who decides what constitutes “proof”? Can “proof” come only from experiments? If so, we’re in trouble, because we can never do an experiment in humans for any exposure that is suspected to be harmful.
  • The problem is that as new data come along, what was once proven can become unproven again by new expert panels who now consider this new evidence and come to a different conclusion. This leads to the perhaps uncomfortable definition of “proof” as “a consensus of experts.”
  • The point of emphasis is that there is no hard formula on how to consider the evidence; it is a group decision by a panel of experts (the scientific jury) in which sometimes the epidemiological evidence is so strong that it doesn’t matter whether mice get cancer or not. And sometimes the epidemiology is insufficient to render a verdict on causation and so the toxicology becomes important in making the decision.
markfrankel18

What We Really Taste When We Drink Wine : The New Yorker - 2 views

www.newyorker.com/...-taste-when-we-drink-wine.html

TOK perception taste wine

shared by markfrankel18 on 15 Jul 14 - No Cached
  • Salzman first became interested in wine when he was a graduate student at Stanford University studying neuroscience (Ph.D.) and psychiatry (M.D.). “I was corrupted by some people who were very serious about wine,” he told me. Together, they would host wine tastings and travel to vineyards. Over time, as his interest in wine grew, he began to think about the connections between his tastings and the work he was doing on the ways in which emotion colors the way our brains process information. “We study how cognitive and emotional processes can affect perception,” he said. “And in the case of something like wine, you have the perfect example: even before you open a bottle to experience the wine itself, you already have an arbitrary visual stimulus—the bottle and the label—that comes with non-arbitrary emotional associations, good and bad.” And those emotional associations will, in turn, affect what we taste.
  • In one recent study, the Caltech neuroscientist Hilke Plassman found that people’s expectations of a wine’s price affected their enjoyment on a neural level: not only did they report greater subjective enjoyment but they showed increased activity in an area of the brain that has frequently been associated with the experience of pleasantness. The same goes for the color and shape of a wine’s label: some labels make us think that a wine is more valuable (and, hence, more tasty), while others don’t. Even your ability to pronounce a winery’s name can influence your appreciation of its product—the more difficult the name is to pronounce, the more you’ll like the wine.
  • For experts, though, the story is different. In 1990, Gregg Solomon, a Harvard psychologist who wrote “Great Expectorations: The Psychology of Expert Wine Talk,” found that amateurs can’t really distinguish different wines at all, but he also found that experts can indeed rank wines for sweetness, balance, and tannin at rates that far exceeded chance. Part of the reason isn’t just in the added experience. It’s in the ability to phrase and label that experience more precisely, a more developed sensory vocabulary that helps you to identify and remember what you experience. Indeed, when novices are trained, their discrimination ability improves.
Lawrence Hrubes

BBC World Service - The Why Factor, Memory - 0 views

www.bbc.co.uk/p01fx887

TOK memory psychology BBCRadioPodcastTheWhyFactor

shared by Lawrence Hrubes on 08 Sep 13 - No Cached
  • Lawrence Hrubes on 08 Sep 13
     
    "Memory plays a big part in shaping our identity, but can we rely on what we recall about ourselves and about others? Mike Williams finds out how human memory works and why some memories flood back more easily than others. He also explores whether different senses trigger different types of memories. Mike speaks to memory experts Martin Conway, Elizabeth Loftus, Gisli Gudjonsson, Maria Larsson and Simon Chu. The reader is Roberto Pistolesi."
Lawrence Hrubes

BBC News - Missing Malaysia plane: 10 theories examined - 0 views

www.bbc.com/...magazine-26609687

TOK reason

shared by Lawrence Hrubes on 18 Mar 14 - No Cached
  • As the search for Malaysia Airlines missing Boeing 777 moves into its 11th day, a multitude of theories about the plane's fate are circulating on forums and social media. Here, former pilots and aviation experts look at some of those theories.
  • As the search for Malaysia Airlines missing Boeing 777 moves into its 11th day, a multitude of theories about the plane's fate are circulating on forums and social media. Here, former pilots and aviation experts look at some of those theories.
markfrankel18

Elizabeth Loftus: The fiction of memory | Video on TED.com - 0 views

www.ted.com/...tus_the_fiction_of_memory.html

memory TOK psychology consciousness

shared by markfrankel18 on 23 Sep 13 - No Cached
  • markfrankel18 on 23 Sep 13
     
    "Psychologist Elizabeth Loftus studies memories. More precisely, she studies false memories, when people either remember things that didn't happen or remember them differently from the way they really were. It's more common than you might think, and Loftus shares some startling stories and statistics, and raises some important ethical questions we should all remember to consider. Memory-manipulation expert Elizabeth Loftus explains how our memories might not be what they seem -- and how implanted memories can have real-life repercussions."
Lawrence Hrubes

Fertility expert: 'I can clone a human being' | Science | News | The Independent - 0 views

www.independent.co.uk/...one-a-human-being-1672095.html

ethics science cloning bioethics biology

shared by Lawrence Hrubes on 07 Apr 16 - Cached
  • "There is absolutely no doubt about it, and I may not be the one that does it, but the cloned child is coming. There is absolutely no way that it will not happen," Dr Zavos said in an interview yesterday with The Independent.
  • "If we find out that this technique does not work, I don't intend to step on dead bodies to achieve something because I don't have that kind of ambition. My ambition is to help people."
  • Dr Zavos also revealed that he has produced cloned embryos of three dead people, including a 10-year-old child called Cady, who died in a car crash. He did so after being asked by grieving relatives if he could create biological clones of their loved ones.
markfrankel18

Malcolm Gladwell got us wrong: Our research was key to the 10,000-hour rule, but here's... - 0 views

www.salon.com/..._heres_what_got_oversimplified

TOK science research Gladwell

shared by markfrankel18 on 11 Apr 16 - No Cached
  • First, there is nothing special or magical about ten thousand hours. Gladwell could just as easily have mentioned the average amount of time the best violin students had practiced by the time they were eighteen — approximately seventy-four hundred hours — but he chose to refer to the total practice time they had accumulated by the time they were twenty, because it was a nice round number.
  • And the number varies from field to field.
  • Third, Gladwell didn’t distinguish between the type of practice that the musicians in our study did — a very specific sort of practice referred to as “deliberate practice” which involves constantly pushing oneself beyond one’s comfort zone, following training activities designed by an expert to develop specific abilities, and using feedback to identify weaknesses and work on them — and any sort of activity that might be labeled “practice.”
  • ...1 more annotation...
  • The final problem with the ten-thousand-hour rule is that, although Gladwell himself didn’t say this, many people have interpreted it as a promise that almost anyone can become an expert in a given field by putting in ten thousand hours of practice. But nothing in the study of the Berlin violinists implied this. To show a result like this, it would have been necessary to put a collection of randomly chosen people through ten thousand hours of deliberate practice on the violin and then see how they turned out. All that the Berlin study had shown was that among the students who had become good enough to be admitted to the Berlin music academy, the best students had put in, on average, significantly more hours of solitary practice than the better students, and the better and best students had put in more solitary practice than the music-education students.
markfrankel18

Picasso = Genius: This algorithm can judge "creativity" in art as well as the experts - 1 views

qz.com/...-in-art-as-well-as-the-experts

TOK arts

shared by markfrankel18 on 12 Jun 15 - No Cached
  • markfrankel18 on 12 Jun 15
     
    Art is seen as unquantifiable. Great paintings are creative forces that transcend their brush strokes, colors, and compositions. They can't be reduced to mere data, analyzed, and ranked by their creativity. Two computer scientists at Rutgers University respectfully disagree. Ahmed Elgammal and Babak Saleh created an algorithm that they say measures the originality and influence of artworks by using...
markfrankel18

Nuremberg Nazi Site Crumbles, but Tricky Questions on Its Future Persist - The New York... - 1 views

www.nytimes.com/...ons-on-its-future-persist.html

TOK history ethics

shared by markfrankel18 on 03 Nov 15 - No Cached
  • Should public money be spent to preserve these crumbling sites? Is controlled decay an option for anything associated with the Nazis? Or have Hitler and his architect, Albert Speer, locked future generations into a devilish pact that compels Germans not only to teach the history of the Thousand Year Reich the Nazis proclaimed here but also to adapt it for each new era?Several dozen experts — and some curious citizens — gathered for a weekend recently to ponder such questions at a forum titled “Preserve. For what?”
Lawrence Hrubes

Fighting ISIS With an Algorithm, Physicists Try to Predict Attacks - The New York Times - 0 views

www.nytimes.com/...ts-try-to-predict-attacks.html

science math human sciences SocialScience prediction terrorism social networks

shared by Lawrence Hrubes on 20 Jun 16 - No Cached
  • And with the Islamic State’s prolific use of social media, terrorism experts and government agencies continually search for clues in posts and Twitter messages that appear to promote the militants’ cause.A physicist may not seem like an obvious person to study such activity. But for months, Neil Johnson, a physicist at the University of Miami, led a team that created a mathematical model to sift order from the chaotic pro-terrorism online universe.
  • The tracking of terrorists on social media should take a cue from nature, Dr. Johnson said, where “the way transitions happen is like a flock of birds, a school of fish.”
  • The researchers also said there might be a spike in the formation of small online groups just before an attack takes place.
  • ...1 more annotation...
  • Both Mr. Berger and Ms. Patel noted a tricky question raised by the research: When is it best to try to suppress small groups so they do not mushroom into bigger groups, and when should they be left to percolate? Letting them exist for a while might be a way to gather intelligence, Ms. Patel said.
Lawrence Hrubes

A New Form of Stem-Cell Engineering Raises Ethical Questions - The New York Times - 0 views

www.nytimes.com/...-synthetic-embryos-sheefs.html

ethics science biology life research

shared by Lawrence Hrubes on 22 Mar 17 - No Cached
  • As biological research races forward, ethical quandaries are piling up. In a report published Tuesday in the journal eLife, researchers at Harvard Medical School said it was time to ponder a startling new prospect: synthetic embryos.In recent years, scientists have moved beyond in vitro fertilization. They are starting to assemble stem cells that can organize themselves into embryolike structures.Soon, experts predict, they will learn how to engineer these cells into new kinds of tissues and organs. Eventually, they may take on features of a mature human being.
markfrankel18

La Vie En Rouge « The Dish - 0 views

dish.andrewsullivan.com/...la-vie-en-rouge

TOK human sciences perception

shared by markfrankel18 on 03 Feb 14 - No Cached
  • Most mammals, including most primates, are dichromatic, meaning they can only detect two color wavelengths: green and blue. Certain primates, though, have evolved to see a third: red. It turns out that these primates—humans, chimps, gorillas, and orangutans, to name some—all have one thing in common: bare-skinned faces. Based on this trend, experts have
Lawrence Hrubes

BBC News - The six key moments of the Cold War relived - 0 views

www.bbc.com/...magazine-26788606

history ColdWar TOK

shared by Lawrence Hrubes on 31 Mar 14 - No Cached
  • The stand-off in Ukraine has revived memories of the Cold War, but for many under the age of 40 the events of that conflict now seem far off. The US, UK and France were allied with the communist Soviet Union during World War Two, but as it became clear victory in the war was approaching new battle lines started to be drawn. What followed was 45 years of tension, marked by espionage and proxy wars involving client states, all undertaken with the knowledge of the nuclear catastrophe that actual war would bring. People who experienced the key events of the conflict describe how it affected them - and Cold War expert Scott Lucas, of Birmingham University and EA WorldView, explains how they fitted into the bigger picture.
Lawrence Hrubes

BBC News - Sleep's memory role discovered - 0 views

www.bbc.com/health-27695144

memory sleep learning science brain neuroscience

shared by Lawrence Hrubes on 07 Jun 14 - No Cached
  • The mechanism by which a good night's sleep improves learning and memory has been discovered by scientists. The team in China and the US used advanced microscopy to witness new connections between brain cells - synapses - forming during sleep. Their study, published in the journal Science, showed even intense training could not make up for lost sleep. Experts said it was an elegant and significant study, which uncovered the mechanisms of memory. It is well known that sleep plays an important role in memory and learning. But what actually happens inside the brain has been a source of considerable debate.
Lawrence Hrubes

Five reasons why we should still read maps - BBC News - 0 views

www.bbc.com/...education-32551090

maps geography technology

shared by Lawrence Hrubes on 03 May 15 - No Cached
  • But now experts say a reliance on sat-navs and smartphone map apps is undermining map-reading skills. So here are five reasons why you should love maps and resist the easy attraction of the sat-nav.
  • They have to be used in conjunction with the physical world, be that reading a sign, noticing a church (with or without a spire of course) or identifying that big hill on your right. This process of using your eyes and engaging your brain leaves memories and knowledge of the world around you. With sat-nav as a guide, nothing is learned nor loved about the journey.
  • Maps are a partner to our intellect, not a replacement.
  • ...1 more annotation...
  • Maps are beautifulThe Mappa Mundi in Hereford Cathedral shows the history, geography and destiny of Christian Europe as understood in the late 13th Century with pictures of the Pillars of Hercules, the Golden Fleece and a man riding a crocodile. Star maps use images of bears and gods to decipher the random. The London Tube map is a design icon. Maps are eminently practical, but their intriguing visual imagery is a pinnacle of art.
markfrankel18

Why We Keep Playing the Lottery - Issue 4: The Unlikely - Nautilus - 1 views

nautil.us/...hy-we-keep-playing-the-lottery

ToK Lottery math psychology emotion

shared by markfrankel18 on 23 Nov 13 - Cached
  • Blind to the mathematical odds, we fall to the marketing gods.
  • “People just aren’t able to grasp 1 in 175 million,” Williams says. “It’s just beyond our experience—we have nothing in our evolutionary history that prepares us or primes us, no intellectual architecture, to try and grasp the remoteness of those odds.” And so we continue to play. And play.
  • It may seem easy to understand why we keep playing. As one trademarked lottery slogan goes, “Hey, you never know.” Somebody has to win. But to really understand why hundreds of millions of people play a game they will never win, a game with serious social consequences, you have to suspend logic and consider it through an alternate set of rules—rules written by neuroscientists, social psychologists, and economists. When the odds are so small that they are difficult to conceptualize, the risk we perceive has less to do with outcomes than with how much fear or hope we are feeling when we make a decision, how we “frame” and organize sets of logical facts, and even how we perceive ourselves in relation to others. Once you know the alternate set of rules, plumb the literature, and speak to the experts, the popularity of the lottery suddenly makes a lot more sense. It’s a game where reason and logic are rendered obsolete, and hope and dreams are on sale.
  • ...3 more annotations...
  • Selling the lottery dream is possible because, paradoxically, the probabilities of winning are so infinitesimal they become irrelevant. Our brains didn’t evolve to calculate complex odds. In our evolutionary past, the ability to distinguish between a region with a 1 percent or 10 percent chance of being attacked by a predator wouldn’t have offered much of an advantage. An intuitive and coarse method of categorization, such as “doesn’t happen,” “happen sometimes,” “happens most of time,” “always happens,” would have sufficed, explains Jane L. Risen, an associate professor of Behavioral Science at the University of Chicago, Booth School of Business, who studies decision-making. Despite our advances in reason and mathematics, she says, we still often rely on crude calculations to make decisions, especially quick decisions like buying a lottery ticket.
  • In the conceptual vacuum created by incomprehensible odds, people are likely to experience magical thinking or superstition, play a hunch, or simply throw reason out the window all together, says George Loewenstein, a professor of economics and psychology at Carnegie Mellon. “Most of the weird stuff that you see with decision-making and risk happens with small probabilities,” he says.
  • But even fantasy will drop its hold on us if we always lose—a point Hargrove grasped from the start. Research has shown that positive reinforcement is a key in virtually all of the successful lotteries, notes the University of Lethbridge’s Williams. Lotteries that allow players to choose combinations of four or five numbers from a total of 60 numbers are popular, he says, because many players experience “the near miss,” which creates the illusion that they came close to winning the multi-million dollar jackpot. Most players don’t realize, however, that “near-miss” is an illusion. The odds of winning get worse with each successive match.
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