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ilanaprincilus06

NFL to stop controversial use of 'race-norming' in brain trauma settlements | NFL | The... - 0 views

www.theguardian.com/...orming-brain-trauma-settlement

NFL brain injuries dementia race

shared by ilanaprincilus06 on 05 Jun 21 - No Cached
  • The NFL on Wednesday pledged to halt the use of “race-norming” which assumed Black players started out with lower cognitive function in the $1bn settlement of brain injury claims and review past scores for any potential race bias.
  • The practice made it harder for Black retirees to show a deficit and qualify for an award.
  • Wednesday’s announcement comes after a pair of Black players filed a civil rights lawsuit over the practice, medical experts raised concerns and a group of NFL families last month dropped 50,000 petitions at the federal courthouse in Philadelphia where the lawsuit had been thrown out by the judge overseeing the settlement.
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  • According to the NFL, a panel of neuropsychologists that was formed recently to propose a new testing regime to the court includes two female and three Black doctors.
  • The NFL noted that the norms were developed in medicine “to stop bias in testing, not perpetrate it.”
  • The binary race norms, when they are used in the testing, assumes that Black patients start with worse cognitive function than whites and other non-Blacks.
  • The awards so far have averaged $516,000 for the 379 players with early-stage dementia and $715,000 for the 207 players with moderate dementia.
  • he settlement ended thousands of lawsuits that accused the NFL of long hiding what it knew about the link between concussions and traumatic brain injury.
pier-paolo

Opinion | The War on Logic - The New York Times - 0 views

www.nytimes.com/...17krugman.html

shared by pier-paolo on 16 Jan 21 - No Cached
  • We are, I believe, witnessing something new in American politics. Last year, looking at claims that we can cut taxes, avoid cuts to any popular program and still balance the budget, I observed that Republicans seemed to have lost interest in the war on terror and shifted focus to the war on arithmetic. But now the G.O.P. has moved on to an even bigger project: the war on logic.
  • First of all, says the analysis, the true cost of reform includes the cost of the “doc fix.”
  • in 1997 Congress enacted a formula to determine Medicare payments to physicians. The formula was, however, flawed; it would lead to payments so low that doctors would stop accepting Medicare patients. Instead of changing the formula, however, Congress has consistently enacted one-year fixes.
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  • And Republicans claim that the estimated cost of future fixes, $208 billion over the next 10 years, should be considered a cost of health care reform.But the same spending would still be necessary if we were to undo reform. So the G.O.P. argument here is exactly like claiming that my mortgage payments, which I’ll have to make no matter what we do tonight, are a cost of going out for dinner.
  • So, is the Republican leadership unable to see through childish logical fallacies? No. The key to understanding the G.O.P. analysis of health reform is that the party’s leaders are not, in fact, opposed to reform because they believe it will increase the deficit
  • All they ever needed or wanted were some numbers and charts to wave at the press, fooling some people into believing that we’re having some kind of rational discussion. We aren’t.
caelengrubb

How Did Language Begin? | Linguistic Society of America - 0 views

www.linguisticsociety.org/...how-did-language-begin

shared by caelengrubb on 17 Jan 21 - No Cached
  • The question is not how languages gradually developed over time into the languages of the world today. Rather, it is how the human species developed over time so that we - and not our closest relatives, the chimpanzees and bonobos - became capable of using language.
  • Human language can express thoughts on an unlimited number of topics (the weather, the war, the past, the future, mathematics, gossip, fairy tales, how to fix the sink...). It can be used not just to convey information, but to solicit information (questions) and to give orders.
  • Every human language has a vocabulary of tens of thousands of words, built up from several dozen speech sounds
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  • Animal communication systems, in contrast, typically have at most a few dozen distinct calls, and they are used only to communicate immediate issues such as food, danger, threat, or reconciliation. Many of the sorts of meanings conveyed by chimpanzee communication have counterparts in human 'body language'.
  • The basic difficulty with studying the evolution of language is that the evidence is so sparse. Spoken languages don't leave fossils, and fossil skulls only tell us the overall shape and size of hominid brains, not what the brains could do
  • All present-day languages, including those of hunter-gatherer cultures, have lots of words, can be used to talk about anything under the sun, and can express negation. As far back as we have written records of human language - 5000 years or so - things look basically the same.
  • According to current thinking, the changes crucial for language were not just in the size of the brain, but in its character: the kinds of tasks it is suited to do - as it were, the 'software' it comes furnished with.
  • So the properties of human language are unique in the natural world.
  • About the only definitive evidence we have is the shape of the vocal tract (the mouth, tongue, and throat): Until anatomically modern humans, about 100,000 years ago, the shape of hominid vocal tracts didn't permit the modern range of speech sounds. But that doesn't mean that language necessarily began the
  • Some researchers even propose that language began as sign language, then (gradually or suddenly) switched to the vocal modality, leaving modern gesture as a residue.
  • . In an early stage, sounds would have been used to name a wide range of objects and actions in the environment, and individuals would be able to invent new vocabulary items to talk about new things
  • In order to achieve a large vocabulary, an important advance would have been the ability to 'digitize' signals into sequences of discrete speech sounds - consonants and vowels - rather than unstructured calls.
  • These two changes alone would yield a communication system of single signals - better than the chimpanzee system but far from modern language. A next plausible step would be the ability to string together several such 'words' to create a message built out of the meanings of its parts.
  • This has led some researchers to propose that the system of 'protolanguage' is still present in modern human brains, hidden under the modern system except when the latter is impaired or not yet developed.
  • Again, it's very hard to tell. We do know that something important happened in the human line between 100,000 and 50,000 years ago: This is when we start to find cultural artifacts such as art and ritual objects, evidence of what we would call civilization.
  • One tantalizing source of evidence has emerged recently. A mutation in a gene called FOXP2 has been shown to lead to deficits in language as well as in control of the face and mouth. This gene is a slightly altered version of a gene found in apes, and it seems to have achieved its present form between 200,000 and 100,000 years ago.
  • Nevertheless, if we are ever going to learn more about how the human language ability evolved, the most promising evidence will probably come from the human genome, which preserves so much of our species' history. The challenge for the future will be to decode it.
sanderk

Global economy will suffer for years to come, says OECD - BBC News - 0 views

www.bbc.com/...business-52000219

economy education Knowledge research

shared by sanderk on 28 Mar 20 - No Cached
  • The world will take years to recover from the coronavirus pandemic, the Organisation for Economic Co-operation and Development has warned.Angel Gurría, OECD secretary general, said the economic shock was already bigger than the financial crisis.
  • The world will take years to recover from the coronavirus pandemic, the Organisation for Economic Co-operation and Development has warned.Angel Gurría, OECD secretary general, said the economic shock was already bigger than the financial crisis.He told the BBC it was "wishful thinking" to believe that countries would bounce back quickly.
  • Mr Gurría said a recent warning that a serious outbreak could halve global growth to 1.5% already looked too optimistic.
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  • While the number of job losses and company failures remains uncertain, Mr Gurría said countries would be dealing with the economic fallout "for years to come".
  • "Even if you don't get a worldwide recession, you're going to get either no growth or negative growth in many of the economies of the world, including some of the larger ones, and therefore you're going to get not only low growth this year, but also it's going to take longer to pick up in the in the future,"
  • the reason is that we don't know how much it's going to take to fix the unemployment because we don't know how many people are going to end up unemployed. We also don't know how much it's going to take to fix the hundreds of thousands of small and medium enterprises who are already suffering
  • Mr Gurría called on governments to rip up borrowing rules and "throw everything we got at it" to deal with the crisis.
  • However, he warned that bigger deficits and larger debt piles would also weigh on heavily indebted countries for years to come.
  • Mr Gurría said that just weeks ago, policymakers from the G20 club of rich nations believed the recovery would take a 'V' shape - with a short, sharp drop in economic activity followed swiftly by a rebound in growth."It was already then mostly wishful thinking," he said.
  • It's going to be more in the best of cases like a 'U' with a long trench in the bottom before it gets to the recovery period. We can avoid it looking like an 'L', if we take the right decisions today."
johnsonel7

In traditional language, there is no word for disability | Damian Griffis for Indigenou... - 0 views

www.theguardian.com/...here-is-no-word-for-disability

language

shared by johnsonel7 on 21 Nov 19 - No Cached
  • At FPDN we say we are the thought leaders on inclusion. We know this because in traditional language there was and is no word for disability. This is a wonderful thing in our communities – we have always been “come as you are”
  • This is compelling evidence that shows we have always known that disability is part of the human experience. However, we are continuing to butt up against a system that requires people with disability to accept labels that we say are fundamentally about deficit.
tongoscar

Donald Trump's trade wars have not been 'easy to win'  | Financial Times - 0 views

www.ft.com/...98-36ed-11ea-a6d3-9a26f8c3cba4

shared by tongoscar on 20 Jan 20 - No Cached
  • The phase one trade agreement between the US and China signed on Wednesday is only a truce in the trade war, rather than a major reversal of the tariffs imposed since 2018. Nevertheless, it halts a dangerous political momentum.
  • Jan Hatzius of Goldman Sachs describes this as a “subtraction of the negatives”. Paradoxically, the worse the effects on US growth rates in the past two years, the greater the scope for a bounceback this year. Mr Trump’s initial confidence about the effects of trade protection was based on a belief that China’s bilateral trade surplus with the US would force President Xi Jinping to make major policy concessions to safeguard his own export sector. The outcome was rather different: China retaliated with similar measures and this damaged American manufacturers. 
  • The damage to financial and business confidence triggered by the trade announcements hurt US growth still further. The tightening in financial conditions caused by the rising dollar and the collapse in equities late in 2018 would probably have been more severe if the Fed had not reduced policy interest rates by 75 basis points since then.
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  • The good news is that part of this overall drag may disappear before the end of 2020, boosting American GDP growthby at least half a percentage point.What about the longer-term benefits of the trade deal?The purchase of $200bn of additional US exports in the energy, agriculture, manufacturing and services sectors, spread over two years, will reduce the bilateral trade deficit with China. But many of these exports will probably be redirected from elsewhere and will not boost US domestic output in those sectors. Longer term, China’s business restrictions, including alleged unfair trading practices, appear to be easing. Given the political boost from the phase one deal, Chinese economic reformers such as vice-premier Liu He may be in the ascendancy in Beijing for a while. 
  • The trade war has significantly damaged US growth in 2018-19Since President Donald Trump became more aggressive in his threats about trade protection early in 2018, US tariffs on Chinese goods have risen markedly, prompting retaliation from China. There have been only a few comprehensive studies on the overall impact of tariffs on the US growth rate. A notable exception is the work of Jan Hatzius’s US economics team at Goldman Sachs. They have estimated the possible impact of rising tariffs on net trade flows, real incomes, financial conditions and business confidence, and have combined these effects to produce the aggregate growth estimates shown in the graph below. As the negative effects of rising tariffs fade in 2020, the US growth rate is expected to be boosted by at least half a percentage point.
tongoscar

The psychology and neuroscience of curiosity - 0 views

www.ncbi.nlm.nih.gov/...PMC4635443

shared by tongoscar on 27 Oct 19 - No Cached
  • Curiosity is a basic element of our cognition, yet its biological function, mechanisms, and neural underpinning remain poorly understood.
  • One factor limiting our understanding of it is the lack of a widely agreed upon delineation of what is and is not curiosity; another factor is the dearth of standardized laboratory tasks that manipulate curiosity in the lab.
  • Curiosity is such a basic component of our natures that we are nearly oblivious to its pervasiveness in our lives.
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  • Its diminution is a symptom of depression, and its overexpression contributes to distractibility, a symptom of disorders such as attention-deficit/hyperactivity disorder.
  • The history of studies of animal curiosity is nearly as long as the history of the study of human curiosity.
  • the types of curiosity most commonly exhibited by human and non-humans along two dimensions: perceptual versus epistemic, and specific versus diversive
  • the most popular theory about the function of curiosity is to motivate learning.
johnsonel7

Sensory perception | Science Features | Naked Scientists - 0 views

www.thenakedscientists.com/...derstanding-sensory-perception

sense perception brain science

shared by johnsonel7 on 01 Nov 19 - No Cached
  • Deciphering how the brain processes sight and hearing could have implications for how we understand and treat conditions such as dyslexia, autism and schizophrenia.
  • schizophrenia
  • Through a project called SENSOCOM, she is exploring how sensory perception affects communication, focusing on the brain’s deep subcortical structures.By doing this, she and her team are exploring a part of the brain traditionally excluded by research trying to understand communication impairments found in autism spectrum disorder and dyslexia, conditions which affect around 53 million people in Europe.
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  • To do this they have been focusing on the sensory pathways linked to these deep structures. She and her group discovered that adults with dyslexia have weaker pathway connections between a visual subcortical structure (the left visual thalamus) with an area of the cortex called V5/MT, which is critical for the perception of visual motion. In the auditory mode, there was a similar finding. The team discovered weaker connections between the left auditory thalamus and a cortex structure linked to auditory motion, which is important for speech perception. These connections could therefore be important for reading and for predicting reading skill, according to Dr von Kriegstein.
  • So how might this translate into helping people with dyslexia? This is basic science, says Prof. von Kriegstein, so first it’s crucial to understand the mechanisms behind communications disorders before developing therapy training tools, although she is optimistic these could lie within reach.
  • The way the brain encodes information and in turn directs perception of that sensory experience is a highly variable process.
  • The sensory overload or distorted and heightened perceptions described by schizophrenia patients, for instance, could relate to these deficits. Sensory dysfunction has also been linked to delusions and hallucinations as well as difficulties with attention and reading the emotions or tone of others – all of which can affect social interaction.
  • According to Dr Fellin, decreased connectivity between nerve cells (neurons) appears to play an important role in the progression of schizophrenia. So far, Dr Fellin and his group have identified which specific neurons influence sensory responses in mouse studies, but not yet in animal models of schizophrenia, with similar investigations in glial cells  - the supporting cells of the nervous system.
Javier E

TikTok Brain Explained: Why Some Kids Seem Hooked on Social Video Feeds - WSJ - 0 views

www.wsj.com/...social-video-feeds-11648866192

video social media children inattention attention gratification psychology brain science technology

shared by Javier E on 03 Apr 22 - No Cached
  • Remember the good old days when kids just watched YouTube all day? Now that they binge on 15-second TikToks, those YouTube clips seem like PBS documentaries.
  • Many parents tell me their kids can’t sit through feature-length films anymore because to them the movies feel painfully slow. Others have observed their kids struggling to focus on homework. And reading a book? Forget about it.
  • What is happening to kids’ brains?
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  • “It is hard to look at increasing trends in media consumption of all types, media multitasking and rates of ADHD in young people and not conclude that there is a decrease in their attention span,
  • Emerging research suggests that watching short, fast-paced videos makes it harder for kids to sustain activities that don’t offer instant—and constant—gratification.
  • One of the few studies specifically examining TikTok-related effects on the brain focused on Douyin, the TikTok equivalent in China, made by the same Chinese parent company, ByteDance Ltd. It found that the personalized videos the app’s recommendation engine shows users activate the reward centers of the brain, as compared with the general-interest videos shown to new users.
  • Brain scans of Chinese college students showed that areas involved in addiction were highly activated in those who watched personalized videos.
  • It also found some people have trouble controlling when to stop watching.
  • attention. “If kids’ brains become accustomed to constant changes, the brain finds it difficult to adapt to a nondigital activity where things don’t move quite as fast,”
  • A TikTok spokeswoman said the company wants younger teens to develop positive digital habits early on, and that it recently made some changes aimed at curbing extensive app usage. For example, TikTok won’t allow users ages 13 to 15 to receive push notifications after 9 p.m. TikTok also periodically reminds users to take a break to go outside or grab a snack.
  • Kids have a hard time pulling away from videos on YouTube, too, and Google has made several changes to help limit its use, including turning off autoplay by default on accounts of people under 18.
  • When kids do things that require prolonged focus, such as reading or solving math problems, they’re using directed attention
  • This function starts in the prefrontal cortex, the part of the brain responsible for decision making and impulse control.
  • “Directed attention is the ability to inhibit distractions and sustain attention and to shift attention appropriately. It requires higher-order skills like planning and prioritizing,”
  • Kids generally have a harder time doing this—and putting down their videogame controllers—because the prefrontal cortex isn’t fully developed until age 25.
  • “We speculate that individuals with lower self-control ability have more difficulty shifting attention away from favorite video stimulation,
  • “In the short-form snackable world, you’re getting quick hit after quick hit, and as soon as it’s over, you have to make a choice,” said Mass General’s Dr. Marci, who wrote the new book “Rewired: Protecting Your Brain in the Digital Age.” The more developed the prefrontal cortex, the better the choices.
  • Dopamine is a neurotransmitter that gets released in the brain when it’s expecting a reward. A flood of dopamine reinforces cravings for something enjoyable, whether it’s a tasty meal, a drug or a funny TikTok video.
  • “TikTok is a dopamine machine,” said John Hutton, a pediatrician and director of the Reading & Literacy Discovery Center at Cincinnati Children’s Hospital. “If you want kids to pay attention, they need to practice paying attention.”
  • Researchers are just beginning to conduct long-term studies on digital media’s effects on kids’ brains. The National Institutes of Health is funding a study of nearly 12,000 adolescents as they grow into adulthood to examine the impact that many childhood experiences—from social media to smoking—have on cognitive development.
  • she predicts they will find that when brains repeatedly process rapid, rewarding content, their ability to process less-rapid, less-rewarding things “may change or be harmed.”
  • “It’s like we’ve made kids live in a candy store and then we tell them to ignore all that candy and eat a plate of vegetables,”
  • “We have an endless flow of immediate pleasures that’s unprecedented in human history.”
  • Parents and kids can take steps to boost attention, but it takes effort
  • Swap screen time for real time. Exercise and free play are among the best ways to build attention during childhood,
  • “Depriving kids of tech doesn’t work, but simultaneously reducing it and building up other things, like playing outside, does,”
  • Practice restraint.
  • “When you practice stopping, it strengthens those connections in the brain to allow you to stop again next time.”
  • Use tech’s own tools. TikTok has a screen-time management setting that allows users to cap their app usage.
  • Ensure good sleep. Teens are suffering from a sleep deficit.
Javier E

Elliot Ackerman Went From U.S. Marine to Bestselling Novelist - WSJ - 0 views

www.wsj.com/...-bestselling-novelist-fc5705ca

marine novelist storytelling psychology

shared by Javier E on 19 May 23 - No Cached
  • Years before he impressed critics with his first novel, “Green on Blue” (2015), written from the perspective of an Afghan boy, Ackerman was already, in his words, “telling stories and inhabiting the minds of others.” He explains that much of his work as a special-operations officer involved trying to grasp what his adversaries were thinking, to better anticipate how they might act
  • “Look, I really believe in stories, I believe in art, I believe that this is how we express our humanity,” he says. “You can’t understand a society without understanding the stories they tell about themselves, and how these stories are constantly changing.”
  • his, in essence, is the subject of “Halcyon,” in which a scientific breakthrough allows Robert Ableson, a World War II hero and renowned lawyer, to come back from the dead. Yet the 21st-century America he returns to feels like a different place, riven by debates over everything from Civil War monuments to workplace misconduct.
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  • The novel probes how nothing in life is fixed, including the legacies of the dead and the stories we tell about our pas
  • “The study of history shouldn’t be backward looking,” explains a historian in “Halcyon.” “To matter, it has to take us forward.”
  • Ackerman was in college on Sept. 11, 2001, but what he remembers more vividly is watching the premiere of the TV miniseries “Band of Brothers” the previous Sunday. “If you wanted to know the zeitgeist in the U.S. at the time, it was this very sentimental view of World War II,” he says. “There was this nostalgia for a time where we’re the good guys, they’re the bad guys, and we’re going to liberate oppressed people.”
  • Ackerman, who also covers wars and veteran affairs as a journalist, says that America’s backing of Ukraine is essential in the face of what he calls “an authoritarian axis rising up in the world, with China, Russia and Iran.” Were the country to offer similar help to Taiwan in the face of an invasion from China, he notes, having some air bases in nearby Afghanistan would help, but the U.S. gave those up in 2021.
  • With Islamic fundamentalists now in control of places where he lost friends, he says he is often asked if he regrets his service. “When you are a young man and your country goes to war, you’re presented with a choice: You either fight or you don’t,” he writes in his 2019 memoir “Places and Names.” “I don’t regret my choice, but maybe I regret being asked to choose.”
  • Serving in the military at a time when wars are no longer generation-defining events has proven alienating for Ackerman. “When you’ve got wars with an all-volunteer military funded through deficit spending, they can go on forever because there are no political costs
  • The catastrophic withdrawal from Afghanistan in 2021, which Ackerman covers in his recent memoir “The Fifth Act,” compounded this moral injury. “The fact that there has been so little government support for our Afghan allies has left it to vets to literally clean this up,” he says, noting that he still fields requests for help on WhatsApp. He adds that unless lawmakers act, the tens of thousands of Afghans currently living in the U.S. on humanitarian parole will be sent back to Taliban-held Afghanistan later this year: “It’s very painful to see how our allies are treated.”
  • Looking back on America’s misadventures in Iraq, Afghanistan and elsewhere, he notes that “the stories we tell about war are really important to the decisions we make around war. It’s one reason why storytelling fills me with a similar sense of purpose.”
  • “We don’t talk about the world and our place in it in a holistic way, or a strategic way,” Ackerman says. “We were telling a story about ending America’s longest war, when the one we should’ve been telling was about repositioning ourselves in a world that’s becoming much more dangerous,” he adds. “Our stories sometimes get us in trouble, and we’re still dealing with that trouble today.”
Javier E

How 2020 Forced Facebook and Twitter to Step In - The Atlantic - 0 views

www.theatlantic.com/...617493

facebook twitter knowledge truth social media tech misinformation

shared by Javier E on 05 Nov 23 - No Cached
  • mainstream platforms learned their lesson, accepting that they should intervene aggressively in more and more cases when users post content that might cause social harm.
  • During the wildfires in the American West in September, Facebook and Twitter took down false claims about their cause, even though the platforms had not done the same when large parts of Australia were engulfed in flames at the start of the year
  • Twitter, Facebook, and YouTube cracked down on QAnon, a sprawling, incoherent, and constantly evolving conspiracy theory, even though its borders are hard to delineate.
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  • Content moderation comes to every content platform eventually, and platforms are starting to realize this faster than ever.
  • Nothing symbolizes this shift as neatly as Facebook’s decision in October (and Twitter’s shortly after) to start banning Holocaust denial. Almost exactly a year earlier, Zuckerberg had proudly tied himself to the First Amendment in a widely publicized “stand for free expression” at Georgetown University.
  • The evolution continues. Facebook announced earlier this month that it will join platforms such as YouTube and TikTok in removing, not merely labeling or down-ranking, false claims about COVID-19 vaccines.
  • the pandemic also showed that complete neutrality is impossible. Even though it’s not clear that removing content outright is the best way to correct misperceptions, Facebook and other platforms plainly want to signal that, at least in the current crisis, they don’t want to be seen as feeding people information that might kill them.
  • When internet platforms announce new policies, assessing whether they can and will enforce them consistently has always been difficult. In essence, the companies are grading their own work. But too often what can be gleaned from the outside suggests that they’re failing.
  • It tweaked its algorithm to boost authoritative sources in the news feed and turned off recommendations to join groups based around political or social issues. Facebook is reversing some of these steps now, but it cannot make people forget this toolbox exists in the future
  • As platforms grow more comfortable with their power, they are recognizing that they have options beyond taking posts down or leaving them up. In addition to warning labels, Facebook implemented other “break glass” measures to stem misinformation as the election approached.
  • Platforms don’t deserve praise for belatedly noticing dumpster fires that they helped create and affixing unobtrusive labels to them
  • Warning labels for misinformation might make some commentators feel a little better, but whether labels actually do much to contain the spread of false information is still unknown.
  • News reporting suggests that insiders at Facebook knew they could and should do more about misinformation, but higher-ups vetoed their ideas. YouTube barely acted to stem the flood of misinformation about election results on its platform.
  • Even before the pandemic, YouTube had begun adjusting its recommendation algorithm to reduce the spread of borderline and harmful content, and is introducing pop-up nudges to encourage user
  • And if 2020 finally made clear to platforms the need for greater content moderation, it also exposed the inevitable limits of content moderation.
  • Down-ranking, labeling, or deleting content on an internet platform does not address the social or political circumstances that caused it to be posted in the first place
  • even the most powerful platform will never be able to fully compensate for the failures of other governing institutions or be able to stop the leader of the free world from constructing an alternative reality when a whole media ecosystem is ready and willing to enable him. As Renée DiResta wrote in The Atlantic last month, “reducing the supply of misinformation doesn’t eliminate the demand.”
  • Even so, this year’s events showed that nothing is innate, inevitable, or immutable about platforms as they currently exist. The possibilities for what they might become—and what role they will play in society—are limited more by imagination than any fixed technological constraint, and the companies appear more willing to experiment than ever.
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