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Gut Bacteria Might Guide The Workings Of Our Minds : Shots - Health News : NPR - 0 views

  • Turns out you really can have a gut feeling about something, because evidence has been mounting that those microbes in the body may be important for our emotional health as well as our physical health.
  • PRIA TEWARI: Growing up in India we believe that what you eat influences your thoughts.
  • MAYER: We found that the type of community you have, of microbes you have in your gut, is reflected in some ways in some basic architectural aspects of the brain.
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  • STEIN: The brain connections of people whose microbes are dominated by one species of bacteria look different than those of people whose microbes are dominated by another species. That suggests that the specific mix of microbes in our guts helps determine what kinds of brains we have, how our brain circuits develop, how they're wired.
  • STEIN: It worked the other way around too. The bold mice became timid when they got the microbes of anxious ones. Aggressive mice also calmed down when the scientists altered their microbes by changing their diet, feeding them probiotics, or dosing them with antibiotics.
  • This could help explain why some people are born with brains that don't work the way they're supposed to, causing problems like autism, anxiety, depression.
  • COLLINS: And this resulted in a change in behavior. The mice became a little bit less anxious, a little bit more gregarious.
  • They did things like replace the gut bacteria of anxious mice with bacteria from fearless mice.
  • STEIN: Finally, these scientists figured out how the microbes in the guts of the mice were communicating with their brains - by sending signals up a big nerve known as the vagus nerve.
  • All this is raising the possibility that scientists could create drugs that mimic these signals. Or just give people the good bacteria - probiotics - to prevent or treat problems involving the brain.
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The Mind-Body Illusion | Psychology Today - 0 views

  • We have minds and we have bodies and never the twain shall meet. 
  • As much as I wish I weren’t, I’m a dualist too.  Not intellectually, mind you, but in my everyday life.  Just this morning I dragged myself out of bed.  Who did the dragging?  My mind.  Who was dragged?  My tired body.  The truth is that we have no easy alternative way to make sense of ourselves except as minds and bodies.
  • The problem is that the mind and body obviously do work together.  I have a thought and if it’s a good day, my body puts that thought into action. 
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  • the notion that minds and bodies exist in separate realms (i.e. Cartesian Dualism) is entirely untenable. 
  • Our bodies have an address in the first realm, whereas Our minds and everything psychological about minds make their home in the second realm.  According to Descartes, these realms are forever separate such that the mind and body cannot influence one another.
  • We are amazed to learn that when the mind is stressed over time, this can lead the body to break down, producing a variety of physical ailments.  This is amazing to us because we believe stress is of the mind and it is difficult to imagine something of the mind affecting our bodies.  Its hard to believe because it violates our intuitive dualistic understanding of the world.
  • Are you smart?  Are you kind?  Are you funny?  Are you afraid of being alone?  These two different kinds of questions, focused on body and mind, respectively, rely on different networks within your brain.  When you think about your body and the actions of your body, you recruit a prefrontal and parietal region on the outer surface of your right hemisphere (these are called ‘lateral’ regions).  When you think about your mind you instead recruit different prefrontal and parietal regions in the middle of the brain, where the two hemispheres touch each other (these are called ‘medial’ regions). 
  • Knowing that our sense of dualism is just an illusion is very important.  Thomas Mussweiler’s lab recently conducted a study showing that those who have a stronger belief in dualism tend to be less healthy.  Why?  Dualists believe their body is just a shell that is far less important than the mind. 
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Why Do Some Brains Enjoy Fear? - Allegra Ringo - The Atlantic - 1 views

  • One of the most interesting things about studying fear is looking at the social constructions of fear, and learned fears versus those fears that appear to be more innate, or even genetic
  • Through fear conditioning (connecting a neutral stimulus with a negative consequence) we can link pretty much anything to a fear response.
  • So we know that we can learn to fear, and this means our socialization and the society in which we are raised is going to have a lot to do with what we find scary.
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  • This speaks to the fact that things that violate the laws of nature are terrifying. And really anything that doesn’t make sense or causes us some sort of dissonance, whether it is cognitive or aesthetic, is going to be scary (axe-wielding animals, masked faces, contorted bodies).
  • Humans are obsessed with death; we simply have a hard time wrapping our mind around what happens when we die.
  • Humans have been scaring themselves and each other since the birth of the species, through all kinds of methods like storytelling, jumping off cliffs, and popping out to startle each other from the recesses of some dark cave.
  • to build group unity, to prepare kids for life in the scary world, and, of course, to control behavior.
  • These scary stories provided, and continue to deliver, intrigue, exhilaration, and a jolt of excitement to our lives.
  • One of the reasons people love Halloween is because it produces strong emotional responses, and those responses work to build stronger relationships and memories. When we’re happy, or afraid, we’re releasing powerful hormones, like oxcytocin, that are working to make these moments stick in our brain. So we’re going to remember the people we’re with. If it was a good experience, then we’ll remember them fondly and feel close to them, more so than if we were to meet them during some neutral unexciting event.
  • We’re social and emotional beings. We need each other in times of stress, so the fact that our bodies have evolved to make sure we feel close to those we are with when afraid makes sense.
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Love People, Not Pleasure - NYTimes.com - 0 views

  • Fame, riches and pleasure beyond imagination. Sound great? He went on to write:“I have diligently numbered the days of pure and genuine happiness which have fallen to my lot: They amount to 14.”Abd al-Rahman’s problem wasn’t happiness, as he believed — it was unhappiness
  • Happiness and unhappiness are certainly related, but they are not actually opposites.
  • Circumstances are certainly important. No doubt Abd al-Rahman could point to a few in his life. But paradoxically, a better explanation for his unhappiness may have been his own search for well-being. And the same might go for you.Continue reading the main story
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  • As strange as it seems, being happier than average does not mean that one can’t also be unhappier than average.
  • In 2009, researchers from the University of Rochester conducted a study tracking the success of 147 recent graduates in reaching their stated goals after graduation. Some had “intrinsic” goals, such as deep, enduring relationships. Others had “extrinsic” goals, such as achieving reputation or fame. The scholars found that intrinsic goals were associated with happier lives. But the people who pursued extrinsic goals experienced more negative emotions, such as shame and fear. They even suffered more physical maladies.
  • the paradox of fame. Just like drugs and alcohol, once you become addicted, you can’t live without it. But you can’t live with it, either.
  • That impulse to fame by everyday people has generated some astonishing innovations.
  • Today, each of us can build a personal little fan base, thanks to Facebook, YouTube, Twitter and the like. We can broadcast the details of our lives to friends and strangers in an astonishingly efficient way. That’s good for staying in touch with friends, but it also puts a minor form of fame-seeking within each person’s reach. And several studies show that it can make us unhappy.
  • It makes sense. What do you post to Facebook? Pictures of yourself yelling at your kids, or having a hard time at work? No, you post smiling photos of a hiking trip with friends. You build a fake life — or at least an incomplete one — and share it. Furthermore, you consume almost exclusively the fake lives of your social media “friends.” Unless you are extraordinarily self-aware, how could it not make you feel worse to spend part of your time pretending to be happier than you are, and the other part of your time seeing how much happier others seem to be than you?Continue reading the main story
  • the bulk of the studies point toward the same important conclusion: People who rate materialistic goals like wealth as top personal priorities are significantly likelier to be more anxious, more depressed and more frequent drug users, and even to have more physical ailments than those who set their sights on more intrinsic values.
  • as the Dalai Lama pithily suggests, it is better to want what you have than to have what you want.
  • In 2004, two economists looked into whether more sexual variety led to greater well-being. They looked at data from about 16,000 adult Americans who were asked confidentially how many sex partners they had had in the preceding year, and about their happiness. Across men and women alike, the data show that the optimal number of partners is one.
  • This might seem totally counterintuitive. After all, we are unambiguously driven to accumulate material goods, to seek fame, to look for pleasure. How can it be that these very things can give us unhappiness instead of happiness? There are two explanations, one biological and the other philosophical.
  • From an evolutionary perspective, it makes sense that we are wired to seek fame, wealth and sexual variety. These things make us more likely to pass on our DNA.
  • here’s where the evolutionary cables have crossed: We assume that things we are attracted to will relieve our suffering and raise our happiness.
  • that is Mother Nature’s cruel hoax. She doesn’t really care either way whether you are unhappy — she just wants you to want to pass on your genetic material. If you conflate intergenerational survival with well-being, that’s your problem, not nature’s.
  • More philosophically, the problem stems from dissatisfaction — the sense that nothing has full flavor, and we want more. We can’t quite pin down what it is that we seek. Without a great deal of reflection and spiritual hard work, the likely candidates seem to be material things, physical pleasures or favor among friends and strangers.
  • We look for these things to fill an inner emptiness. They may bring a brief satisfaction, but it never lasts, and it is never enough. And so we crave more.
  • This search for fame, the lust for material things and the objectification of others — that is, the cycle of grasping and craving — follows a formula that is elegant, simple and deadly:Love things, use people.
  • This was Abd al-Rahman’s formula as he sleepwalked through life. It is the worldly snake oil peddled by the culture makers from Hollywood to Madison Avenue.
  • Simply invert the deadly formula and render it virtuous:Love people, use things.
  • It requires the courage to repudiate pride and the strength to love others — family, friends, colleagues, acquaintances, God and even strangers and enemies. Only deny love to things that actually are objects. The practice that achieves this is charity. Few things are as liberating as giving away to others that which we hold dear.
  • This also requires a condemnation of materialism.
  • Finally, it requires a deep skepticism of our own basic desires. Of course you are driven to seek admiration, splendor and physical license.
  • Declaring war on these destructive impulses is not about asceticism or Puritanism. It is about being a prudent person who seeks to avoid unnecessary suffering.
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Richard Dawkins: Why the universe seems so strange | Talk Video | TED.com - 0 views

  • Biologist Richard Dawkins makes a case for "thinking the improbable" by looking at how the human frame of reference limits our understanding of the universe.
  •  
    This ted talk is very interesting and talks about how our limits as humans limit our ability to understand the universe
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Do Our Bones Influence Our Minds? : The New Yorker - 0 views

  • But their skeletons appeared essentially normal, he says, a result that left him “deeply depressed.”
  • It turns out that osteocalcin is a messenger, sent by bone to regulate crucial processes all over the body.
  • The finding represents new ground in how researchers view the skeleton: not only do bones provide structural support and serve as a repository for calcium and phosphate, they issue commands to far-flung cells
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  • “This is a biggie,” said Eric Kandel, the neuroscientist and Nobel Laureate. “Who thinks of the bone as being an endocrine organ? You think of the adrenal gland, you think of the pituitary, you don’t think of bone.”
  • he most recent finding concerns the skeleton and the brain.
  • Karsenty showed that bone plays a direct role in memory and mood. Mice whose skeletons did not produce osteocalcin as a result of genetic manipulation were anxious, depressed, and almost completely unable to master a test of spatial memory. When Karsenty infused them with the missing hormone, however, their moods improved and their performance on the memory test became nearly normal. He also found that, in pregnant mice, osteocalcin from the mother’s bones crossed the placenta and helped shape the development of the fetus’s brain. In other words, bones talk to neurons even before birth.
  • As we age, our bone mass decreases. Memory loss, anxiety, and depression also become more common. These may be separate, unfortunate facts about getting old, but they could also be related.
  • Even more fantastically: Would it ever be possible to protect memory or treat age-related cognitive decline with a skeletal hormone? These are the kinds of questions that can spur either false hopes or imaginative leaps.
  • “I don’t know of any hormone that functions in mice but not to some extent in humans,” Thomas Clemens, of Johns Hopkins, told me in 2011
  • ne tantalizing hint comes from men who are unable to respond to the hormone as a result of a genetic mutation
  • Karsenty also believes that we know enough now to recognize that the body is far more networked and interconnected than most people think. “No organ is an island,” he likes to say.
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How Walking in Nature Changes the Brain - The New York Times - 0 views

  • A walk in the park may soothe the mind and, in the process, change the workings of our brains in ways that improve our mental health, according to an interesting new study
  • Various studies have found that urban dwellers with little access to green spaces have a higher incidence of psychological problems than people living near parks and that city dwellers who visit natural environments have lower levels of stress hormones immediately afterward than people who have not recently been outside.
  • Mr. Bratman and his collaborators decided to closely scrutinize what effect a walk might have on a person’s tendency to brood.
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  • Brooding, which is known among cognitive scientists as morbid rumination, is a mental state familiar to most of us, in which we can’t seem to stop chewing over the ways in which things are wrong with ourselves and our lives. This broken-record fretting is not healthy or helpful. It can be a precursor to depression and is disproportionately common among city dwellers compared with people living outside urban areas
  • such rumination also is strongly associated with increased activity in a portion of the brain known as the subgenual prefrontal cortex.
  • These results “strongly suggest that getting out into natural environments” could be an easy and almost immediate way to improve moods for city dwellers, Mr. Bratman said.
  • walking along the highway had not soothed people’s minds. Blood flow to their subgenual prefrontal cortex was still high and their broodiness scores were unchanged.
  • the volunteers who had strolled along the quiet, tree-lined paths showed slight but meaningful improvements in their mental health, according to their scores on the questionnaire. They were not dwelling on the negative aspects of their lives as much as they had been before the walk. They also had less blood flow to the subgenual prefrontal cortex. That portion of their brains were quieter.
  • the scientists randomly assigned half of the volunteers to walk for 90 minutes through a leafy, quiet, parklike portion of the Stanford campus or next to a loud, hectic, multi-lane highway in Palo Alto. The volunteers were not allowed to have companions or listen to music. They were allowed to walk at their own pace.
  • many questions remain, he said, including how much time in nature is sufficient or ideal for our mental health, as well as what aspects of the natural world are most soothing. Is it the greenery, quiet, sunniness, loamy smells, all of those, or something else that lifts our moods? Do we need to be walking or otherwise physically active outside to gain the fullest psychological benefits? Should we be alone or could companionship amplify mood enhancements? “There’s a tremendous amount of study that still needs to be done,” Mr. Bratman said.
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E.D. Hirsch Jr.'s 'Cultural Literacy' in the 21st Century - The Atlantic - 0 views

  • much of this angst can be interpreted as part of a noisy but inexorable endgame: the end of white supremacy. From this vantage point, Americanness and whiteness are fitfully, achingly, but finally becoming delinked—and like it or not, over the course of this generation, Americans are all going to have to learn a new way to be American.
  • What is the story of “us” when “us” is no longer by default “white”? The answer, of course, will depend on how aware Americans are of what they are, of what their culture already (and always) has been.
  • The thing about the list, though, was that it was—by design—heavy on the deeds and words of the “dead white males” who had formed the foundations of American culture but who had by then begun to fall out of academic fashion.
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  • Conservatives thus embraced Hirsch eagerly and breathlessly. He was a stout defender of the patrimony. Liberals eagerly and breathlessly attacked him with equal vigor. He was retrograde, Eurocentric, racist, sexist.
  • Lost in all the crossfire, however, were two facts: First, Hirsch, a lifelong Democrat who considered himself progressive, believed his enterprise to be in service of social justice and equality. Cultural illiteracy, he argued, is most common among the poor and power-illiterate, and compounds both their poverty and powerlessness. Second: He was right.
  • A generation of hindsight now enables Americans to see that it is indeed necessary for a nation as far-flung and entropic as the United States, one where rising economic inequality begets worsening civic inequality, to cultivate continuously a shared cultural core. A vocabulary. A set of shared referents and symbols.
  • So, first of all, Americans do need a list. But second, it should not be Hirsch’s list. And third, it should not made the way he made his. In the balance of this essay, I want to unpack and explain each of those three statements.
  • If you take the time to read the book attached to Hirsch’s appendix, you’ll find a rather effective argument about the nature of background knowledge and public culture. Literacy is not just a matter of decoding the strings of letters that make up words or the meaning of each word in sequence. It is a matter of decoding context: the surrounding matrix of things referred to in the text and things implied by it
  • That means understanding what’s being said in public, in the media, in colloquial conversation. It means understanding what’s not being said. Literacy in the culture confers power, or at least access to power. Illiteracy, whether willful or unwitting, creates isolation from power.
  • his point about background knowledge and the content of shared public culture extends well beyond schoolbooks. They are applicable to the “texts” of everyday life, in commercial culture, in sports talk, in religious language, in politics. In all cases, people become literate in patterns—“schema” is the academic word Hirsch uses. They come to recognize bundles of concept and connotation like “Party of Lincoln.” They perceive those patterns of meaning the same way a chess master reads an in-game chessboard or the way a great baseball manager reads an at bat. And in all cases, pattern recognition requires literacy in particulars.
  • Lots and lots of particulars. This isn’t, or at least shouldn’t be, an ideologically controversial point. After all, parents on both left and right have come to accept recent research that shows that the more spoken words an infant or toddler hears, the more rapidly she will learn and advance in school. Volume and variety matter. And what is true about the vocabulary of spoken or written English is also true, one fractal scale up, about the vocabulary of American culture.
  • those who demonized Hirsch as a right-winger missed the point. Just because an endeavor requires fluency in the past does not make it worshipful of tradition or hostile to change.
  • radicalism is made more powerful when garbed in traditionalism. As Hirsch put it: “To be conservative in the means of communication is the road to effectiveness in modern life, in whatever direction one wishes to be effective.”
  • Hence, he argued, an education that in the name of progressivism disdains past forms, schema, concepts, figures, and symbols is an education that is in fact anti-progressive and “helps preserve the political and economic status quo.” This is true. And it is made more urgently true by the changes in American demography since Hirsch gave us his list in 1987.
  • If you are an immigrant to the United States—or, if you were born here but are the first in your family to go to college, and thus a socioeconomic new arrival; or, say, a black citizen in Ferguson, Missouri deciding for the first time to participate in a municipal election, and thus a civic neophyte—you have a single overriding objective shared by all immigrants at the moment of arrival: figure out how stuff really gets done here.
  • So, for instance, a statement like “One hundred and fifty years after Appomattox, our house remains deeply divided” assumes that the reader knows that Appomattox is both a place and an event; that the event signified the end of a war; that the war was the Civil War and had begun during the presidency of a man, Abraham Lincoln, who earlier had famously declared that “a house divided against itself cannot stand”; that the divisions then were in large part about slavery; and that the divisions today are over the political, social, and economic legacies of slavery and how or whether we are to respond to those legacies.
  • But why a list, one might ask? Aren’t lists just the very worst form of rote learning and standardized, mechanized education? Well, yes and no.
  • it’s not just newcomers who need greater command of common knowledge. People whose families have been here ten generations are often as ignorant about American traditions, mores, history, and idioms as someone “fresh off the boat.”
  • The more serious challenge, for Americans new and old, is to make a common culture that’s greater than the sum of our increasingly diverse parts. It’s not enough for the United States to be a neutral zone where a million little niches of identity might flourish; in order to make our diversity a true asset, Americans need those niches to be able to share a vocabulary. Americans need to be able to have a broad base of common knowledge so that diversity can be most fully activated.
  • as the pool of potential culture-makers has widened, the modes of culture creation have similarly shifted away from hierarchies and institutions to webs and networks. Wikipedia is the prime embodiment of this reality, both in how the online encyclopedia is crowd-created and how every crowd-created entry contains links to other entries.
  • so any endeavor that makes it easier for those who do not know the memes and themes of American civic life to attain them closes the opportunity gap. It is inherently progressive.
  • since I started writing this essay, dipping into the list has become a game my high-school-age daughter and I play together.
  • I’ll name each of those entries, she’ll describe what she thinks to be its meaning. If she doesn’t know, I’ll explain it and give some back story. If I don’t know, we’ll look it up together. This of course is not a good way for her teachers to teach the main content of American history or English. But it is definitely a good way for us both to supplement what school should be giving her.
  • And however long we end up playing this game, it is already teaching her a meta-lesson about the importance of cultural literacy. Now anytime a reference we’ve discussed comes up in the news or on TV or in dinner conversation, she can claim ownership. Sometimes she does so proudly, sometimes with a knowing look. My bet is that the satisfaction of that ownership, and the value of it, will compound as the years and her education progress.
  • The trouble is, there are also many items on Hirsch’s list that don’t seem particularly necessary for entry into today’s civic and economic mainstream.
  • Which brings us back to why diversity matters. The same diversity that makes it necessary to have and to sustain a unifying cultural core demands that Americans make the core less monochromatic, more inclusive, and continuously relevant for contemporary life
  • it’s worth unpacking the baseline assumption of both Hirsch’s original argument and the battles that erupted around it. The assumption was that multiculturalism sits in polar opposition to a traditional common culture, that the fight between multiculturalism and the common culture was zero-sum.
  • As scholars like Ronald Takaki made clear in books like A Different Mirror, the dichotomy made sense only to the extent that one imagined that nonwhite people had had no part in shaping America until they started speaking up in the second half of the twentieth century.
  • The truth, of course, is that since well before the formation of the United States, the United States has been shaped by nonwhites in its mores, political structures, aesthetics, slang, economic practices, cuisine, dress, song, and sensibility.
  • In its serious forms, multiculturalism never asserted that every racial group should have its own sealed and separate history or that each group’s history was equally salient to the formation of the American experience. It simply claimed that the omni-American story—of diversity and hybridity—was the legitimate American story.
  • as Nathan Glazer has put it (somewhat ruefully), “We are all multiculturalists now.” Americans have come to see—have chosen to see—that multiculturalism is not at odds with a single common culture; it is a single common culture.
  • it is true that in a finite school year, say, with finite class time and books of finite heft, not everything about everyone can be taught. There are necessary trade-offs. But in practice, recognizing the true and longstanding diversity of American identity is not an either-or. Learning about the internment of Japanese Americans does not block out knowledge of D-Day or Midway. It is additive.
  • As more diverse voices attain ever more forms of reach and power we need to re-integrate and reimagine Hirsch’s list of what literate Americans ought to know.
  • To be clear: A 21st-century omni-American approach to cultural literacy is not about crowding out “real” history with the perishable stuff of contemporary life. It’s about drawing lines of descent from the old forms of cultural expression, however formal, to their progeny, however colloquial.
  • Nor is Omni-American cultural literacy about raising the “self-esteem” of the poor, nonwhite, and marginalized. It’s about raising the collective knowledge of all—and recognizing that the wealthy, white, and powerful also have blind spots and swaths of ignorance
  • What, then, would be on your list? It’s not an idle question. It turns out to be the key to rethinking how a list should even get made.
  • the Internet has transformed who makes culture and how. As barriers to culture creation have fallen, orders of magnitude more citizens—amateurs—are able to shape the culture in which we must all be literate. Cat videos and Star Trek fan fiction may not hold up long beside Toni Morrison. But the entry of new creators leads to new claims of right: The right to be recognized. The right to be counted. The right to make the means of recognition and accounting.
  • It is true that lists alone, with no teaching to bring them to life and no expectation that they be connected to a broader education, are somewhere between useless and harmful.
  • This will be a list of nodes and nested networks. It will be a fractal of associations, which reflects far more than a linear list how our brains work and how we learn and create. Hirsch himself nodded to this reality in Cultural Literacy when he described the process he and his colleagues used for collecting items for their list, though he raised it by way of pointing out the danger of infinite regress.
  • His conclusion, appropriate to his times, was that you had to draw boundaries somewhere with the help of experts. My take, appropriate to our times, is that Americans can draw not boundaries so much as circles and linkages, concept sets and pathways among them.
  • Because 5,000 or even 500 items is too daunting a place to start, I ask here only for your top ten. What are ten things every American—newcomer or native born, affluent or indigent—should know? What ten things do you feel are both required knowledge and illuminating gateways to those unenlightened about American life? Here are my entries: Whiteness The Federalist Papers The Almighty Dollar Organized labor Reconstruction Nativism The American Dream The Reagan Revolution DARPA A sucker born every minute
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When the Internet Thinks It Knows You - NYTimes.com - 1 views

  • There is a new group of gatekeepers in town, and this time, they’re not people, they’re code.
  • Today’s Internet giants — Google, Facebook, Yahoo and Microsoft — see the remarkable rise of available information as an opportunity. If they can provide services that sift though the data and supply us with the most personally relevant and appealing results, they’ll get the most users and the most ad views. As a result, they’re racing to offer personalized filters that show us the Internet that they think we want to see. These filters, in effect, control and limit the information that reaches our screens.
  • increasingly, and nearly invisibly, our searches for information are being personalized too.
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  • when personalization affects not just what you buy but how you think, different issues arise. Democracy depends on the citizen’s ability to engage with multiple viewpoints; the Internet limits such engagement when it offers up only information that reflects your already established point of view. While it’s sometimes convenient to see only what you want to see, it’s critical at other times that you see things that you don’t.
  • At Facebook, “relevance” is virtually the sole criterion that determines what users see. Focusing on the most personally relevant news — the squirrel — is a great business strategy. But it leaves us staring at our front yard instead of reading about suffering, genocide and revolution.
  • It is in our collective interest to ensure that the Internet lives up to its potential as a revolutionary connective medium. This won’t happen if we’re all sealed off in our own personalized online worlds.
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The Book Bench: Is Self-Knowledge Overrated? : The New Yorker - 1 views

  • It’s impossible to overstate the influence of Kahneman and Tversky. Like Darwin, they helped to dismantle a longstanding myth of human exceptionalism. Although we’d always seen ourselves as rational creatures—this was our Promethean gift—it turns out that human reason is rather feeble, easily overwhelmed by ancient instincts and lazy biases. The mind is a deeply flawed machine.
  • there is a subtle optimism lurking in all of Kahneman’s work: it is the hope that self-awareness is a form of salvation, that if we know about our mental mistakes, we can avoid them. One day, we will learn to equally weigh losses and gains; science can help us escape from the cycle of human error. As Kahneman and Tversky noted in the final sentence of their classic 1974 paper, “A better understanding of these heuristics and of the biases to which they lead could improve judgments and decisions in situations of uncertainty.” Unfortunately, such hopes appear to be unfounded. Self-knowledge isn’t a cure for irrationality; even when we know why we stumble, we still find a way to fall.
  • self-knowledge is surprisingly useless. Teaching people about the hazards of multitasking doesn’t lead to less texting in the car; learning about the weakness of the will doesn’t increase the success of diets; knowing that most people are overconfident about the future doesn’t make us more realistic. The problem isn’t that we’re stupid—it’s that we’re so damn stubborn
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  • Kahneman has given us a new set of labels for our shortcomings. But his greatest legacy, perhaps, is also his bleakest: By categorizing our cognitive flaws, documenting not just our errors but also their embarrassing predictability, he has revealed the hollowness of a very ancient aspiration. Knowing thyself is not enough. Not even close.
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How our brain assess bargains - 0 views

  • The 'supermarket shoppers' were brain-scanned to test their reactions to promotions and special offers in a major cutting-edge project by UK-based SBXL, one of Europe's leading shopping behaviour specialists and Bangor University's respected School of Psychology.
  • We know from other research that people are not as good at making rational decisions as they might expect, often using "rules of thumb" and educated guesses to evaluate decisions. Using brain imaging techniques we hope to get a better understanding of how the brain responds to special offers and how this may influence the decisions we make. This also gives us the chance to do some research on how we make decisions in a real world context."
  • Our data also agrees with previous research suggesting that as offers, or decisions get more complex, instead of working things out, Our brains take shortcuts, and may guess that an offer is good. Interestingly, in Our study people were just as good at selecting good complex offers from bad as they were for less complex ones, suggesting this guessing method may be as good in some cases as "working it out"."
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  • "It turns out we are not as good at picking good offers as you might expect, with the average shopper in our experiment only picking 60% of good offers compared to bad. We also found that age had a strong negative affect on the ability to choose good offers, with older people less able to choose good offers over bad ones. We find this latter effect very interesting and would like to do some more research to find out why this may be the case."
  • The advantage of using fMRI to image the brain while actively making shopping decisions is that it enables us to see how the whole brain responds, including the 'deeper' areas of the brain, such as those associated with emotion and desire. This lets us understand more about what makes an offer appealing: in some cases the choice appears to be more rational, and in other cases we can see emotional circuitry getting involved in the decision-making process".
  • In particular we are interested in how factors we are unconsciously aware of can override what might be considered the optimal choice based on conscious judgements. We hope this partnership with SBXL will lead to further research in this area."
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How Social Status Affects Your Health - NYTimes.com - 0 views

  • If you want to see how status affects health, you have to isolate status from material wealth. How to do that? The easiest way is to observe a society in which there is minimal material wealth to contest and where there are limited avenues for status competition.
  • For several years, we studied the Tsimane forager-horticulturalists of Amazonian Bolivia, a small, preindustrial, politically egalitarian society in which status confers no formal privileges (such as coercive authority).
  • we found that even among the Tsimane, higher status was associated with lower levels of stress and better health.
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  • Along the banks of the Maniqui River and in adjacent forests, the Tsimane people hunt, fish and plant plantains, rice and sweet manioc. They live in villages that range in size from 30 to 700 people. During village meetings, decision making is consensus-based. No individual has the right to coerce anyone else.
  • that doesn’t mean there are no status distinctions. When you attend a Tsimane village meeting, you soon notice that the opinions of certain men are more influential during the consensus-building process. These same men are often solicited to mediate disputes or to represent villagers’ interests with outsiders.
  • My colleagues and I measured the social status of all the men from four Tsimane villages (nearly 200 men between the ages of 18 and 83), by asking them to evaluate one another on their informal political influence. The men also provided urine samples and received medical examinations from physicians
  • We found that Tsimane men with less political influence had higher levels of the stress hormone cortisol, which has many important physiological functions. This result persisted after controlling for other factors that might affect stress levels, including age, body size and personality.
  • In addition, we found that the less influential Tsimane men had a higher risk of respiratory infection, the most common cause of sickness and death in their society. Stress may contribute to this disparity in infection risk; when chronic, stress can dampen immune function.
  • Studying the same individuals over a four-year period, we also found that for men whose influence declined over time, greater declines were correlated with higher levels of cortisol and respiratory illness. Downward mobility is harmful, it seems, even in an egalitarian society.
  • Why might low status cause such stress for the Tsimane? One possibility is that status offers a greater sense of control.
  • Another is that status acts as a form of social insurance. Influential Tsimane men have more allies and food-production partners, who can be helpful in mitigating conflict, sickness and food shortage. The relative lack of such support may cause psychosocial stress.
  • It is interesting that even in industrialized societies, the status comparisons most consequential for psychosocial stress are often among individuals who live near one another or occupy the same social network, not individuals at opposite ends of the socioeconomic spectrum.
  • Those living just above the poverty line may resent welfare for those living just below it, and a millionaire may envy a multimillionaire more than he envies a billionaire.
  • The importance of relative status perceptions may have its roots in the small-scale societies of our ancestors, which were similar to that of the Tsimane. In such societies, both our political competitors and our cooperative partners were likely individuals with whom we interacted regularly.
  • As our society debates the effects of wealth inequality, the Tsimane help us understand why we care so deeply about relative social position — and why our health depends on it.
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How Technology Is Warping Your Memory - 0 views

  • Take a moment to think about the last time you memorized someone's phone number.
  • a growing body of research has suggested that it may have profound effects on our memories (particularly the short-term, or working, memory), altering and in some cases impairing its function.
  • "The depth of our intelligence hinges on our ability to transfer information from working memory, the scratch pad of consciousness, to long-term memory, the mind’s filing system," Nicholas Carr
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  • new research has found that taking photos -- an increasingly ubiquitous practice in our smartphone-obsessed culture -- actually hinders our ability to remember that which we're capturing on camera.
  • most of us aren't able to effectively manage the overload of information we're constantly bombarded with.When the working memory is experiencing digital overload, it's like a glass of water overflowing.
  • when we know a digital device or tool will remember a piece of information for us, we're less likely to remember it ourselves.
  • He explained that an over-reliance on technology has a tendency to encourage us to isolate pieces of information without fitting them into a broader cognitive schema.
  • A 2013 Trending Machine national poll found that millennials (aged 18-34) are more likely than those over the age of 55 to forget what day it is (15 percent vs. 7 percent) and where they put their keys (14 percent vs. 8 percent).
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BBC - Future - How pickpockets trick your mind - 0 views

  • Pickpockets use much more than sleight of hand, says Caroline Williams, they hack your brain’s weaknesses.
  • He must have slid out the 20 euro note at the same time. I didn’t even notice until an hour later. I felt so stupid.”
  • According to neuroscientists our brains come pretty much hard-wired to be tricked, thanks to the vagaries of our attention and perception systems.
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  • The most important of these loopholes is the fact that our brains are not set up to multi-task. Most of the time that is a good thing – it allows us to filter out all but the most important features of the world around us.
  • In fact, the key requirement for a successful pickpocket isn’t having nifty fingers, it’s having a working knowledge of the loopholes in our brains. Some are so good at it that researchers are working with them to get an insight into the way our minds work.
  • “A street thief will avoid like the plague people who are demonstrating a very open awareness of their environment. The man on the tube who is looking around, being very aware, they won’t go anywhere near,”
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Ann Coulter Is Right to Fear the World Cup - Peter Beinart - The Atlantic - 1 views

  • Ann Coulter penned a column explaining why soccer is un-American. First, it’s collectivist. (“Individual achievement is not a big factor…blame is dispersed.”) Second, it’s effeminate. (“It’s a sport in which athletic talent finds so little expression that girls can play with boys.”) Third, it’s culturally elitist. (“The same people trying to push soccer on Americans are the ones demanding that we love HBO’s “Girls,” light-rail, Beyoncé and Hillary Clinton.”) Fourth, and most importantly, “It’s foreign…Soccer is like the metric system, which liberals also adore because it’s European.”
  • Soccer hatred, in other words, exemplifies American exceptionalism.
  • For Coulter and many contemporary conservatives, by contrast, part of what makes America exceptional is its individualism, manliness and populism
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  • Coulter’s deeper point is that for America to truly be America, it must stand apart
  • The core problem with embracing soccer is that in so doing, America would become more like the rest of the world.
  • America’s own league, Major League Soccer, draws as many fans to its stadiums as do the NHL and NBA.
  • I wrote an essay entitled “The End of American Exceptionalism,” which argued that on subjects where the United States has long been seen as different, attitudes in America increasingly resemble those in Europe. Soccer is one of the best examples yet.
  • “Soccer,” Markovits and Hellerman argue, “was perceived by both native-born Americans and immigrants as a non-American activity at a time in American history when nativism and nationalism emerged to create a distinctly American self-image … if one liked soccer, one was viewed as at least resisting—if not outright rejecting—integration into America.”
  • The average age of Americans who call baseball their favorite sport is 53. Among Americans who like football best, it’s 46. Among Americans who prefer soccer, by contrast, the average age is only 37.
  • Old-stock Americans, in other words, were elevating baseball, football, and basketball into symbols of America’s distinct identity. Immigrants realized that embracing those sports offered a way to claim that identity for themselves. Clinging to soccer, by contrast, was a declaration that you would not melt.
  • why is interest in soccer rising now? Partly, because the United States is yet again witnessing mass immigration from soccer-mad nations.
  • the key shift is that America’s sports culture is less nativist. More native-born Americans now accept that a game invented overseas can become authentically American, and that the immigrants who love it can become authentically American too. Fewer believe that to have merit, something must be invented in the United States.
  • why didn’t soccer gain a foothold in the U.S. in the decades between the Civil War and World War I, when it was gaining dominance in Europe? Precisely because it was gaining dominance in Europe. The arbiters of taste in late 19th and early 20th century America wanted its national pastimes to be exceptional.
  • Americans over the age of 50 were 15 points more likely to say “our culture is superior” than were people over 50 in Germany, Spain, Britain, and France
  • Americans under 30, by contrast, were actually less likely to say “our culture is superior” than their counterparts in Germany, Spain, and Britain.
  • Americans today are less likely to insist that America’s way of doing things is always best. In 2002, 60 percent of Americans told the Pew Research Center that, “our culture is superior to others.” By 2011, it was down to 49 percent.
  • the third major pro-soccer constituency is liberals. They’re willing to embrace a European sport for the same reason they’re willing to embrace a European-style health care system: because they see no inherent value in America being an exception to the global rule
  • When the real-estate website Estately created a seven part index to determine a state’s love of soccer, it found that Washington State, Maryland, the District of Columbia, New York, and New Jersey—all bright blue—loved soccer best, while Alabama, Arkansas, North Dakota, Mississippi and Montana—all bright red—liked it least.
  • the soccer coalition—immigrants, liberals and the young—looks a lot like the Obama coalition.
  • Sports-wise, therefore, Democrats constitute an alliance between soccer and basketball fans while Republicans disproportionately follow baseball, golf, and NASCAR. Football, by far America’s most popular sport, crosses the aisle.)
  • The willingness of growing numbers of Americans to embrace soccer bespeaks their willingness to imagine a different relationship with the world. Historically, conservative foreign policy has oscillated between isolationism and imperialism. America must either retreat from the world or master it. It cannot be one among equals, bound by the same rules as everyone else
  • Exceptionalists view sports the same way. Coulter likes football, baseball, and basketball because America either plays them by itself, or—when other countries play against us—we dominate them.
  • Embracing soccer, by contrast, means embracing America’s role as merely one nation among many, without special privileges. It’s no coincidence that young Americans, in addition to liking soccer, also like the United Nations. In 2013, Pew found that Americans under 30 were 24 points more favorable to the U.N. than Americans over 50.
  • Millennials were also 23 points more likely than the elderly to say America should take its allies’ opinion into account even if means compromising our desires.
  • In embracing soccer, Americans are learning to take something we neither invented nor control, and nonetheless make it our own. It’s a skill we’re going to need in the years to come.
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How Does the Brain Perceive Art? | Wired Science | Wired.com - 2 views

  • our aesthetic judgements are really complicated. While Rembrandt was an astonishingly talented artist, our response to his art is conditioned by all sorts of variables that have nothing to do with oil paint. Many of these variables are capable of distorting our perceptions, so that we imagine differences that don’t actually exist; the verdict of art history warps what we see. The power of a Rembrandt, in other words, is inseparable from the fact that it’s a Rembrandt. The man is a potent brand.
  • Our findings support the idea that when people make aesthetic judgements, they are subject to a variety of influences. Not all of these are immediately articulated. Indeed, some may be inaccessible to direct introspection but their presence might be revealed by brain imaging. It suggests that different regions of the brain interact together when a complex judgment is formed, rather than there being a single area of the brain that deals with aesthetic judgements.
  • We want to believe that pleasure is simple, that our delight in a fine painting or bottle of wine is due entirely to the thing itself. But that’s not the way reality works. Whenever we experience anything, that experience is shaped by factors and beliefs that are not visible on the canvas or present in the glass. Even the most exquisite works in the world — and what is more exceptional than a Rembrandt portrait? — still require a little mental help. We only see the beauty because we are looking for it.
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Scientists able to 'reverse' emotions associated with memories | Al Jazeera America - 0 views

  • Erasing the anguish associated with a breakup or a traumatic event may soon no longer be confined to the realm of science fiction, or the central idea of the film “Eternal Sunshine of the Spotless Mind,” following an apparent breakthrough by scientists at the Massachusetts Institute of Technology.
  • "Recalling a memory is not like playing a tape recorder," said Susumu Tonegawa, an MIT neuroscientist and a lead author of the study. "It's a creative process."
  • Neuroscientists at MIT have honed in on the pathway of brain cells that appear to control the way our memories become linked to emotions — and have been able to “reverse” the emotion in mice linked to a specific memory, turning bad memories into good and vice versa
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  • In the future, one may be able to develop methods that help people to remember positive memories more strongly than negative ones," said Tonegawa.
  •  
    Relates to our unit about emotions and also relates to our memory unit. Discusses how maybe in the future we may be able to develop a way to remember more positive memories rather than negative
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How Walking in Nature Changes the Brain - The New York Times - 0 views

  • Various studies have found that urban dwellers with little access to green spaces have a higher incidence of psychological problems than people living near parks and that city dwellers who visit natural environments have lower levels of stress hormones immediately afterward than people who have not recently been outside.
  • how a visit to a park or other green space might alter mood has been unclear. Does experiencing nature actually change our brains in some way that affects our emotional health?
  • found that volunteers who walked briefly through a lush, green portion of the Stanford campus were more attentive and happier afterward than volunteers who strolled for the same amount of time near heavy traffic.
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  • Brooding, which is known among cognitive scientists as morbid rumination, is a mental state familiar to most of us, in which we can’t seem to stop chewing over the ways in which things are wrong with ourselves and our lives. This broken-record fretting is not healthy or helpful. It can be a precursor to depression and is disproportionately common among city dwellers compared with people living outside urban areas, studies show.
  • such rumination also is strongly associated with increased activity in a portion of the brain known as the subgenual prefrontal cortex.
  • gathered 38 healthy, adult city dwellers and asked them to complete a questionnaire to determine their normal level of morbid rumination. The researchers also checked for brain activity in each volunteer’s subgenual prefrontal cortex, using scans that track blood flow through the brain. Greater blood flow to parts of the brain usually signals more activity in those areas.
  • walking along the highway had not soothed people’s minds. Blood flow to their subgenual prefrontal cortex was still high and their broodiness scores were unchanged. But the volunteers who had strolled along the quiet, tree-lined paths showed slight but meaningful improvements in their mental health, according to their scores on the questionnaire. They were not dwelling on the negative aspects of their lives as much as they had been before the walk. They also had less blood flow to the subgenual prefrontal cortex. That portion of their brains were quieter.
  • many questions remain, he said, including how much time in nature is sufficient or ideal for our mental health, as well as what aspects of the natural world are most soothing. Is it the greenery, quiet, sunniness, loamy smells, all of those, or something else that lifts our moods?
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Noam Chomsky on Where Artificial Intelligence Went Wrong - Yarden Katz - The Atlantic - 1 views

  • Skinner's approach stressed the historical associations between a stimulus and the animal's response -- an approach easily framed as a kind of empirical statistical analysis, predicting the future as a function of the past.
  • Chomsky's conception of language, on the other hand, stressed the complexity of internal representations, encoded in the genome, and their maturation in light of the right data into a sophisticated computational system, one that cannot be usefully broken down into a set of associations.
  • Chomsky acknowledged that the statistical approach might have practical value, just as in the example of a useful search engine, and is enabled by the advent of fast computers capable of processing massive data. But as far as a science goes, Chomsky would argue it is inadequate, or more harshly, kind of shallow
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  • David Marr, a neuroscientist colleague of Chomsky's at MIT, defined a general framework for studying complex biological systems (like the brain) in his influential book Vision,
  • a complex biological system can be understood at three distinct levels. The first level ("computational level") describes the input and output to the system, which define the task the system is performing. In the case of the visual system, the input might be the image projected on our retina and the output might our brain's identification of the objects present in the image we had observed. The second level ("algorithmic level") describes the procedure by which an input is converted to an output, i.e. how the image on our retina can be processed to achieve the task described by the computational level. Finally, the third level ("implementation level") describes how our own biological hardware of cells implements the procedure described by the algorithmic level.
  • The emphasis here is on the internal structure of the system that enables it to perform a task, rather than on external association between past behavior of the system and the environment. The goal is to dig into the "black box" that drives the system and describe its inner workings, much like how a computer scientist would explain how a cleverly designed piece of software works and how it can be executed on a desktop computer.
  • As written today, the history of cognitive science is a story of the unequivocal triumph of an essentially Chomskyian approach over Skinner's behaviorist paradigm -- an achievement commonly referred to as the "cognitive revolution,"
  • While this may be a relatively accurate depiction in cognitive science and psychology, behaviorist thinking is far from dead in related disciplines. Behaviorist experimental paradigms and associationist explanations for animal behavior are used routinely by neuroscientists
  • Chomsky critiqued the field of AI for adopting an approach reminiscent of behaviorism, except in more modern, computationally sophisticated form. Chomsky argued that the field's heavy use of statistical techniques to pick regularities in masses of data is unlikely to yield the explanatory insight that science ought to offer. For Chomsky, the "new AI" -- focused on using statistical learning techniques to better mine and predict data -- is unlikely to yield general principles about the nature of intelligent beings or about cognition.
  • Behaviorist principles of associations could not explain the richness of linguistic knowledge, our endlessly creative use of it, or how quickly children acquire it with only minimal and imperfect exposure to language presented by their environment.
  • it has been argued in my view rather plausibly, though neuroscientists don't like it -- that neuroscience for the last couple hundred years has been on the wrong track.
  • Implicit in this endeavor is the assumption that with enough sophisticated statistical tools and a large enough collection of data, signals of interest can be weeded it out from the noise in large and poorly understood biological systems.
  • Brenner, a contemporary of Chomsky who also participated in the same symposium on AI, was equally skeptical about new systems approaches to understanding the brain. When describing an up-and-coming systems approach to mapping brain circuits called Connectomics, which seeks to map the wiring of all neurons in the brain (i.e. diagramming which nerve cells are connected to others), Brenner called it a "form of insanity."
  • These debates raise an old and general question in the philosophy of science: What makes a satisfying scientific theory or explanation, and how ought success be defined for science?
  • Ever since Isaiah Berlin's famous essay, it has become a favorite pastime of academics to place various thinkers and scientists on the "Hedgehog-Fox" continuum: the Hedgehog, a meticulous and specialized worker, driven by incremental progress in a clearly defined field versus the Fox, a flashier, ideas-driven thinker who jumps from question to question, ignoring field boundaries and applying his or her skills where they seem applicable.
  • Chomsky's work has had tremendous influence on a variety of fields outside his own, including computer science and philosophy, and he has not shied away from discussing and critiquing the influence of these ideas, making him a particularly interesting person to interview.
  • If you take a look at the progress of science, the sciences are kind of a continuum, but they're broken up into fields. The greatest progress is in the sciences that study the simplest systems. So take, say physics -- greatest progress there. But one of the reasons is that the physicists have an advantage that no other branch of sciences has. If something gets too complicated, they hand it to someone else.
  • If a molecule is too big, you give it to the chemists. The chemists, for them, if the molecule is too big or the system gets too big, you give it to the biologists. And if it gets too big for them, they give it to the psychologists, and finally it ends up in the hands of the literary critic, and so on.
  • An unlikely pair, systems biology and artificial intelligence both face the same fundamental task of reverse-engineering a highly complex system whose inner workings are largely a mystery
  • neuroscience developed kind of enthralled to associationism and related views of the way humans and animals work. And as a result they've been looking for things that have the properties of associationist psychology.
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Buying begets buying: how stuff has consumed the average American's life | Life and sty... - 0 views

  • Our addiction to consuming things is a vicious cycle, and buying a bigger house to store it all isn’t the answer.
  • personal storage industry rakes in $22bn each year, and it’s only getting bigger. Why?
  • So, if our houses have tripled in size while the number of people living in them has shrunk, what, exactly, are we doing with all of this extra space? And why the billions of dollars tossed to an industry that was virtually nonexistent a generation or two ago?
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  • because of our stuff. What kind of stuff? Who cares!
  • don’t do anything but take up space and look pretty for a season or two before being replaced by other, newer things – equally pretty and equally useless.
  • if you have more stuff than you do space to easily store it, your life will be spent a slave to your possessions.
  • We shop because we’re bored, anxious, depressed or angry, and we make the mistake of buying material goods and thinking they are treats which will fill the hole, soothe the wound, make us feel better. The problem is, they’re not treats, they’re responsibilities and what we own very quickly begins to own us.
  • when you buy something, you’re also taking on the task of disposing of it (responsibly or not) when you’re done with it. Our addiction to consumption is a vicious one, and it’s stressing us out.
  • A study published by UCLA showed that women’s stress hormones peaked during the times they were dealing with their possessions and material goods.
  • Our current solution to having too much stuff is as short-sighted as it is ineffective: when we run out of space, we simply buy a bigger house.
  • So if bigger homes aren’t the solution, what is? I suggest heading in the exact opposite direction: deliberately choose a life with less. Buy less and instantly you have less to store; you use less space. Eventually you can work less to pay for all of this stuff. Soon you will stress less too and, above all, your life will involve less waste.
  • wondering where to begin? Don’t. You know exactly where this journey starts. It starts with the stuff that makes you feel guilty, stressed or overwhelmed when you look at it.
  • Because when it comes to stuff, I promise you, you don’t need more labels or better systems or complicated Pinterest tutorials – all you need is less.
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