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Weiye Loh

Red-Wine Researcher Charged With 'Photoshop' Fraud - 0 views

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    A University of Connecticut researcher known for touting the health benefits of red wine is guilty of 145 counts of fabricating and falsifying data with image-editing software, according to a 3-year university investigation made public Wednesday. The researcher, Dipak K. Das, PhD, is a director of the university's Cardiovascular Research Center (CRC) and a professor in the Department of Surgery. The university stated in a press release that it has frozen all externally funded research in Dr. Das's lab and turned down $890,000 in federal research grants awarded to him. The process to dismiss Dr. Das from the university is already underway, the university added.
Weiye Loh

Economics is Easy; Comedy is Hard | The Big Picture - 0 views

  • Stung by myriad criticisms of the Fed, Athreya attempted to defend the priesthood of economics. “Writers who have not taken a year of PhD coursework in a decent economics department (and passed their PhD qualifying exams), cannot meaningfully advance the discussion on economic policy,” he wrote. Predictably, it provoked a firestorm of criticism from the blogosphere.
  • But Athreya’s circle the wagon’s defense raises a valid point — economics is too important to leave to just anyone. Especially economists.
  • all models are wrong; the practical question is how wrong do they have to be to not be useful.
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    Kartik Athreya, a researcher for the Federal Reserve Bank of Richmond, posted a diatribe about the difficulties in performing macroeconomic research and policy. Titled "Economics is Hard. Don't Let Bloggers Tell You Otherwise,"
Weiye Loh

The curious double standards of Simon Singh - Telegraph Blogs - 0 views

  • Simon Singh as in the popular mathematician and bestselling author of Fermat’s Last Theorem. And also, more germanely to this story, the recent victim of an expensive libel action brought against him by the British Chiropractic Association (BCA). The BCA eventually dropped its action – but not before Singh had run up £200,000 in legal costs. Though some it his lawyers will be able to claim back, he’s still likely to lose £60,000 of his own money as a result of his brave, principled decision to fight the case rather than cave in earlier. I hugely respected him for what he did. He won a victory (albeit a financially Pyrrhic one) not just for himself but for all those of us who trade in robust opinion and who believe that English libel laws are outrageously biased in favour of vexatious complainants, which is why we have unfortunately become a haven for libel tourists, some of them representing unspeakable causes.
  • Among those “serious matters of public interest”, you might imagine, would be Climate Change.
  • Yet in the opinion of Singh, the worldwide Climate Change industry is the one area where the robust scepticism and empiricism he professes to believe in just doesn’t apply. Apparently, the job of a journalist is just to accept the word of “the scientists” and take it as read that being as they are “scientists” their word is God and it brooks no questioning or dissent. That’s it. Finished.
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  • I have no doubt whatsoever that Sir Paul Nurse knows more about genetics than I do. It is, after all, where the field in which he won his Nobel prize. As for science, sure, Nurse has the advantage over me there, too. He has a PhD. He’s a science graduate and I’m an arts graduate. But then I’ve never pretended otherwise. My case is not that I “James Delingpole have taken a long hard look at the science of global warming and discovered through careful sifting of countless peer-reviewed papers that the experts have got it all wrong.”
  • What I am saying, and I say almost every day, is that the evidence is not as robust as the “consensus” scientists claim; that there are many distinguished scientists all round the world who dispute this alleged “consensus”; that true science doesn’t advance through “consensus” and never has; that the Climategate emails threw the peer-review process into serious doubt by demonstrating how eminently corruptable it is; that there are many vested interests out there determined and able to spend a great deal of money by making out that the case for catastrophic, man-made global warming is much stronger than it is. And on these specific issues I can reasonably claim to be better informed than Sir Paul Nurse, regardless of how many PhDs he has, because I’ve spent much more time than he has researching them and because they are not issues which require an exclusively scientific knowledge to understand. They just require the basic journalistic skill of being able to read and analyse.
Weiye Loh

Skepticblog » A Creationist Challenge - 0 views

  • The commenter starts with some ad hominems, asserting that my post is biased and emotional. They provide no evidence or argument to support this assertion. And of course they don’t even attempt to counter any of the arguments I laid out. They then follow up with an argument from authority – he can link to a PhD creationist – so there.
  • The article that the commenter links to is by Henry M. Morris, founder for the Institute for Creation Research (ICR) – a young-earth creationist organization. Morris was (he died in 2006 following a stroke) a PhD – in civil engineering. This point is irrelevant to his actual arguments. I bring it up only to put the commenter’s argument from authority into perspective. No disrespect to engineers – but they are not biologists. They have no expertise relevant to the question of evolution – no more than my MD. So let’s stick to the arguments themselves.
  • The article by Morris is an overview of so-called Creation Science, of which Morris was a major architect. The arguments he presents are all old creationist canards, long deconstructed by scientists. In fact I address many of them in my original refutation. Creationists generally are not very original – they recycle old arguments endlessly, regardless of how many times they have been destroyed.
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  • Morris also makes heavy use of the “taking a quote out of context” strategy favored by creationists. His quotes are often from secondary sources and are incomplete.
  • A more scholarly (i.e. intellectually honest) approach would be to cite actual evidence to support a point. If you are going to cite an authority, then make sure the quote is relevant, in context, and complete.
  • And even better, cite a number of sources to show that the opinion is representative. Rather we get single, partial, and often outdated quotes without context.
  • (nature is not, it turns out, cleanly divided into “kinds”, which have no operational definition). He also repeats this canard: Such variation is often called microevolution, and these minor horizontal (or downward) changes occur fairly often, but such changes are not true “vertical” evolution. This is the microevolution/macroevolution false dichotomy. It is only “often called” this by creationists – not by actual evolutionary scientists. There is no theoretical or empirical division between macro and micro evolution. There is just evolution, which can result in the full spectrum of change from minor tweaks to major changes.
  • Morris wonders why there are no “dats” – dog-cat transitional species. He misses the hierarchical nature of evolution. As evolution proceeds, and creatures develop a greater and greater evolutionary history behind them, they increasingly are committed to their body plan. This results in a nestled hierarchy of groups – which is reflected in taxonomy (the naming scheme of living things).
  • once our distant ancestors developed the basic body plan of chordates, they were committed to that body plan. Subsequent evolution resulted in variations on that plan, each of which then developed further variations, etc. But evolution cannot go backward, undo evolutionary changes and then proceed down a different path. Once an evolutionary line has developed into a dog, evolution can produce variations on the dog, but it cannot go backwards and produce a cat.
  • Stephen J. Gould described this distinction as the difference between disparity and diversity. Disparity (the degree of morphological difference) actually decreases over evolutionary time, as lineages go extinct and the surviving lineages are committed to fewer and fewer basic body plans. Meanwhile, diversity (the number of variations on a body plan) within groups tends to increase over time.
  • the kind of evolutionary changes that were happening in the past, when species were relatively undifferentiated (compared to contemporary species) is indeed not happening today. Modern multi-cellular life has 600 million years of evolutionary history constraining their future evolution – which was not true of species at the base of the evolutionary tree. But modern species are indeed still evolving.
  • Here is a list of research documenting observed instances of speciation. The list is from 1995, and there are more recent examples to add to the list. Here are some more. And here is a good list with references of more recent cases.
  • Next Morris tries to convince the reader that there is no evidence for evolution in the past, focusing on the fossil record. He repeats the false claim (again, which I already dealt with) that there are no transitional fossils: Even those who believe in rapid evolution recognize that a considerable number of generations would be required for one distinct “kind” to evolve into another more complex kind. There ought, therefore, to be a considerable number of true transitional structures preserved in the fossils — after all, there are billions of non-transitional structures there! But (with the exception of a few very doubtful creatures such as the controversial feathered dinosaurs and the alleged walking whales), they are not there.
  • I deal with this question at length here, pointing out that there are numerous transitional fossils for the evolution of terrestrial vertebrates, mammals, whales, birds, turtles, and yes – humans from ape ancestors. There are many more examples, these are just some of my favorites.
  • Much of what follows (as you can see it takes far more space to correct the lies and distortions of Morris than it did to create them) is classic denialism – misinterpreting the state of the science, and confusing lack of information about the details of evolution with lack of confidence in the fact of evolution. Here are some examples – he quotes Niles Eldridge: “It is a simple ineluctable truth that virtually all members of a biota remain basically stable, with minor fluctuations, throughout their durations. . . .“ So how do evolutionists arrive at their evolutionary trees from fossils of organisms which didn’t change during their durations? Beware the “….” – that means that meaningful parts of the quote are being omitted. I happen to have the book (The Pattern of Evolution) from which Morris mined that particular quote. Here’s the rest of it: (Remember, by “biota” we mean the commonly preserved plants and animals of a particular geological interval, which occupy regions often as large as Roger Tory Peterson’s “eastern” region of North American birds.) And when these systems change – when the older species disappear, and new ones take their place – the change happens relatively abruptly and in lockstep fashion.”
  • Eldridge was one of the authors (with Gould) of punctuated equilibrium theory. This states that, if you look at the fossil record, what we see are species emerging, persisting with little change for a while, and then disappearing from the fossil record. They theorize that most species most of the time are at equilibrium with their environment, and so do not change much. But these periods of equilibrium are punctuated by disequilibrium – periods of change when species will have to migrate, evolve, or go extinct.
  • This does not mean that speciation does not take place. And if you look at the fossil record we see a pattern of descendant species emerging from ancestor species over time – in a nice evolutionary pattern. Morris gives a complete misrepresentation of Eldridge’s point – once again we see intellectual dishonesty in his methods of an astounding degree.
  • Regarding the atheism = religion comment, it reminds me of a great analogy that I first heard on twitter from Evil Eye. (paraphrase) “those that say atheism is a religion, is like saying ‘not collecting stamps’ is a hobby too.”
  • Morris next tackles the genetic evidence, writing: More often is the argument used that similar DNA structures in two different organisms proves common evolutionary ancestry. Neither argument is valid. There is no reason whatever why the Creator could not or would not use the same type of genetic code based on DNA for all His created life forms. This is evidence for intelligent design and creation, not evolution.
  • Here is an excellent summary of the multiple lines of molecular evidence for evolution. Basically, if we look at the sequence of DNA, the variations in trinucleotide codes for amino acids, and amino acids for proteins, and transposons within DNA we see a pattern that can only be explained by evolution (or a mischievous god who chose, for some reason, to make life look exactly as if it had evolved – a non-falsifiable notion).
  • The genetic code is essentially comprised of four letters (ACGT for DNA), and every triplet of three letters equates to a specific amino acid. There are 64 (4^3) possible three letter combinations, and 20 amino acids. A few combinations are used for housekeeping, like a code to indicate where a gene stops, but the rest code for amino acids. There are more combinations than amino acids, so most amino acids are coded for by multiple combinations. This means that a mutation that results in a one-letter change might alter from one code for a particular amino acid to another code for the same amino acid. This is called a silent mutation because it does not result in any change in the resulting protein.
  • It also means that there are very many possible codes for any individual protein. The question is – which codes out of the gazillions of possible codes do we find for each type of protein in different species. If each “kind” were created separately there would not need to be any relationship. Each kind could have it’s own variation, or they could all be identical if they were essentially copied (plus any mutations accruing since creation, which would be minimal). But if life evolved then we would expect that the exact sequence of DNA code would be similar in related species, but progressively different (through silent mutations) over evolutionary time.
  • This is precisely what we find – in every protein we have examined. This pattern is necessary if evolution were true. It cannot be explained by random chance (the probability is absurdly tiny – essentially zero). And it makes no sense from a creationist perspective. This same pattern (a branching hierarchy) emerges when we look at amino acid substitutions in proteins and other aspects of the genetic code.
  • Morris goes for the second law of thermodynamics again – in the exact way that I already addressed. He responds to scientists correctly pointing out that the Earth is an open system, by writing: This naive response to the entropy law is typical of evolutionary dissimulation. While it is true that local order can increase in an open system if certain conditions are met, the fact is that evolution does not meet those conditions. Simply saying that the earth is open to the energy from the sun says nothing about how that raw solar heat is converted into increased complexity in any system, open or closed. The fact is that the best known and most fundamental equation of thermodynamics says that the influx of heat into an open system will increase the entropy of that system, not decrease it. All known cases of decreased entropy (or increased organization) in open systems involve a guiding program of some sort and one or more energy conversion mechanisms.
  • Energy has to be transformed into a usable form in order to do the work necessary to decrease entropy. That’s right. That work is done by life. Plants take solar energy (again – I’m not sure what “raw solar heat” means) and convert it into food. That food fuels the processes of life, which include development and reproduction. Evolution emerges from those processes- therefore the conditions that Morris speaks of are met.
  • But Morris next makes a very confused argument: Evolution has neither of these. Mutations are not “organizing” mechanisms, but disorganizing (in accord with the second law). They are commonly harmful, sometimes neutral, but never beneficial (at least as far as observed mutations are concerned). Natural selection cannot generate order, but can only “sieve out” the disorganizing mutations presented to it, thereby conserving the existing order, but never generating new order.
  • The notion that evolution (as if it’s a thing) needs to use energy is hopelessly confused. Evolution is a process that emerges from the system of life – and life certainly can use solar energy to decrease its entropy, and by extension the entropy of the biosphere. Morris slips into what is often presented as an information argument.  (Yet again – already dealt with. The pattern here is that we are seeing a shuffling around of the same tired creationists arguments.) It is first not true that most mutations are harmful. Many are silent, and many of those that are not silent are not harmful. They may be neutral, they may be a mixed blessing, and their relative benefit vs harm is likely to be situational. They may be fatal. And they also may be simply beneficial.
  • Morris finishes with a long rambling argument that evolution is religion. Evolution is promoted by its practitioners as more than mere science. Evolution is promulgated as an ideology, a secular religion — a full-fledged alternative to Christianity, with meaning and morality . . . . Evolution is a religion. This was true of evolution in the beginning, and it is true of evolution still today. Morris ties evolution to atheism, which, he argues, makes it a religion. This assumes, of course, that atheism is a religion. That depends on how you define atheism and how you define religion – but it is mostly wrong. Atheism is a lack of belief in one particular supernatural claim – that does not qualify it as a religion.
  • But mutations are not “disorganizing” – that does not even make sense. It seems to be based on a purely creationist notion that species are in some privileged perfect state, and any mutation can only take them farther from that perfection. For those who actually understand biology, life is a kluge of compromises and variation. Mutations are mostly lateral moves from one chaotic state to another. They are not directional. But they do provide raw material, variation, for natural selection. Natural selection cannot generate variation, but it can select among that variation to provide differential survival. This is an old game played by creationists – mutations are not selective, and natural selection is not creative (does not increase variation). These are true but irrelevant, because mutations increase variation and information, and selection is a creative force that results in the differential survival of better adapted variation.
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    One of my earlier posts on SkepticBlog was Ten Major Flaws in Evolution: A Refutation, published two years ago. Occasionally a creationist shows up to snipe at the post, like this one:i read this and found it funny. It supposedly gives a scientific refutation, but it is full of more bias than fox news, and a lot of emotion as well.here's a scientific case by an actual scientists, you know, one with a ph. D, and he uses statements by some of your favorite evolutionary scientists to insist evolution doesn't exist.i challenge you to write a refutation on this one.http://www.icr.org/home/resources/resources_tracts_scientificcaseagainstevolution/Challenge accepted.
Weiye Loh

Basqueresearch.com: News - PhD thesis warns of risk of delegating to just a few teacher... - 0 views

  • the incorporation of Information and Communication Technologies into Primary Education brought with it positive changes in the role of the teacher and the student. Teachers and students stopped being mere transmitters and receptors, respectively. The first became mediators of information and the second opted for learning through investigating, discovering and presenting ideas to classmates and teachers. In this way they have, at the same time, the opportunity of getting to know the work of other students, too. Thus, the use of Internet and ICTs reinforce participation and collaboration in the school. According to Dr Altuna, it also helps to boost learning models that are more constructivist, socio-constructivist and even connectivist.
  • Despite its educational possibilities the researcher warns that there are numerous factors that limit the incorporation of Internet into the teaching of the curricular subject in question. These involve aspects such as the time dedicated weekly, technological and computer facilities, accessibility and connection to Internet, the school curriculum and, above all, the knowledge, training and involvement of the teaching staff.
  • the thesis observed a tendency to delegate responsibility for ICT in the school to those teachers who were considered to be “computer experts”. Dr Altuna warns of the risks that this practice runs, as thereby the rest of the staff continues to be untrained and unable to apply ICT and Internet in activities undertaken within their curricular subject. It has to be stressed, therefore, that all should be responsible for the educational measures to be taken so that students acquire digital skills. Also observed was the need for a pedagogic approach to ICT which advises the teaching staff on knowledge about and putting into practice activities in educational innovation.
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  • Dr Altuna not only includes the lack of involvement of teaching staff amongst the limitations for incorporating ICT, but also that of the involvement of the families. It was explained that families showed interest in the use of Internet and ICTs as educational tools for their children, but that these, too, excessively delegate to the schools. The researcher stressed that the families also need guidance, as they are concerned about the use by their children of Internet but do not know the best way to go about the problem.
  • Educational psychologist Dr Jon Altuna has carried out a thorough study of the phenomenon of the school 2.0. Concretely, he has looked into the use and level of incorporation of Internet and of Information and Communication Technologies (ICT) into the third cycle of Primary Education, observing at the same time the attitudes of the teaching staff, and of the students and the families of the children in this regard. His PhD, defended at the University of the Basque Country (UPV/EHU), is entitled, Incorporation of Internet into the teaching of the subject Knowledge of the Environment during the third cycle of Primary Education: possibilities and analysis of the situation of a school. Dr Altuna’s research is based on a study of cases undertaken over eight years at a school where new activities involving ICT had been introduced into the curricular subject of Knowledge of the Environment, taught in the fifth and sixth year of Primary Education. The researcher gathered data from 837 students, 134 teachers and 190 families of this school. This study was completed with the experiences of ICT teachers from 21 schools.
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    Despite its educational possibilities the researcher warns that there are numerous factors that limit the incorporation of Internet into the teaching of the curricular subject in question. These involve aspects such as the time dedicated weekly, technological and computer facilities, accessibility and connection to Internet, the school curriculum and, above all, the knowledge, training and involvement of the teaching staff.
Weiye Loh

The disintermediation of the firm: The feature belongs to individuals | A Computer Scie... - 0 views

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    I expect to see the rise of individuals and the emergence of small teams to be an important trend in the next few years. The bigger firms will feel the increase pressure from agile teams of individuals that can operate faster and get things done quicker. Furthermore, talented individuals, knowing that they can find good job prospects online, they will start putting higher pressure on their employers: Either there is a more equitable share of the surplus, or the value-producing individuals will move into their own ventures. Marx would have been proud: The value-generating labor is now getting into the position of reaping the value of the generated work. Ironically, this "emancipation" is happening through the introduction of capitalist free markets that connect the planet, and not through a communist revolution.
Weiye Loh

Why Did 17 Million Students Go to College? - Innovations - The Chronicle of Higher Educ... - 0 views

  • Over 317,000 waiters and waitresses have college degrees (over 8,000 of them have doctoral or professional degrees), along with over 80,000 bartenders, and over 18,000 parking lot attendants. All told, some 17,000,000 Americans with college degrees are doing jobs that the BLS says require less than the skill levels associated with a bachelor’s degree.
  • Charles Murray’s thesis that an increasing number of people attending college do not have the cognitive abilities or other attributes usually necessary for success at higher levels of learning. As more and more try to attend colleges, either college degrees will be watered down (something already happening I suspect) or drop-out rates will rise.
  • interesting new study was posted on the Web site of America’s most prestigious economic-research organization, the National Bureau of Economic Research. Three highly regarded economists (one of whom has won the Nobel Prize in Economic Science) have produced “Estimating Marginal Returns to Education,” Working Paper 16474 of the NBER. After very sophisticated and elaborate analysis, the authors conclude “In general, marginal and average returns to college are not the same.” (p. 28)
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  • even if on average, an investment in higher education yields a good, say 10 percent, rate of return, it does not follow that adding to existing investments will yield that return, partly for reasons outlined above. The authors (Pedro Carneiro, James Heckman, and Edward Vytlacil) make that point explicitly, stating “Some marginal expansions of schooling produce gains that are well below average returns, in general agreement with the analysis of Charles Murray.”  (p.29)
  • Once the economy improves, and history tells us it will improve within our lifetimes, those who already have a college degree under their belts will be better equipped to take advantage of new employment opportunities than those who don’t. Perhaps not because of the actual knowledge obtained through their degrees, but definitely as an offset to the social stigma that still exists for those who do not attend college. A college degree may not help a young person secure professional work immediately – so new graduates spend a few years waiting tables until the right opportunity comes along. So what? It’s probably good for them. But they have 40-50 years in the workforce ahead of them and need to be forward-thinking if they don’t want to wait tables for that entire time. If we stop encouraging all young people to view college as both a goal and a possibility, and start weeding out those whose “prior academic records suggest little likelihood of academic success” which, let’s face it, will happen in larger proportions in poorer schools, then in 20 years we’ll find that efforts to reduce socioeconomic gaps between minorities and non-minorities have been seriously undermined.
  • Bet you a lot of those janitors with PhDs are from the humanities, in particular ethic studies, film studies,…basket weaving courses… or non-economics social sciences, eg., sociology, anthropology of never heard of country….There should be a buyer beware warning on all those non-quantitative majors that make people into sophisticated malcontent complainers!
  • This article also presumes that the purpose of higher education is merely to train one for a career path and enhance future income. This devalues the university, turning it into a vocational training institution. There’s nothing in this data that suggests that they are “sophisticated complainers”; that’s an unwarranted inference.
  • it was mentioned that the Bill and Melinda Gates Foundation would like 80% of American youth to attend and graduate from college. It is a nice thought in many ways. As a teacher and professor, intellectually I am all for it (if the university experience is a serious one, which these days, I don’t know).
  • students’ expectations in attending college are not just intellectual; they are careerist (probably far more so)
  • This employment issue has more to do with levels of training and subsequent levels of expectation. When a Korean student emerges from 20 years of intense study with a university degree, he or she reasonably expects a “good” job — which is to say, a well-paying professional or managerial job with good forward prospects. But here’s the problem. There does not exist, nor will there ever exist, a society in which 80% of the available jobs are professional, managerial, comfortable, and well-paid. No way.
  • Korea has a number of other jobs, but some are low-paid service work, and many others — in factories, farming, fishing — are scorned as 3-D jobs (difficult, dirty, and dangerous). Educated Koreans don’t want them. So the country is importing labor in droves — from China, Vietnam, Cambodia, the Philippines, even Uzbekistan. In the countryside, rural Korean men are having such a difficult time finding prospective wives to share their agricultural lifestyle that fully 40% of rural marriages are to poor women from those other Asian countries, who are brought in by match-makers and marriage brokers.
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    Why Did 17 Million Students Go to College?
Weiye Loh

The Matthew Effect § SEEDMAGAZINE.COM - 0 views

  • For to all those who have, more will be given, and they will have an abundance; but from those who have nothing, even what they have will be taken away. —Matthew 25:29
  • Sociologist Robert K. Merton was the first to publish a paper on the similarity between this phrase in the Gospel of Matthew and the realities of how scientific research is rewarded
  • Even if two researchers do similar work, the most eminent of the pair will get more acclaim, Merton observed—more praise within the community, more or better job offers, better opportunities. And it goes without saying that even if a graduate student publishes stellar work in a prestigious journal, their well-known advisor is likely to get more of the credit. 
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  • Merton published his theory, called the “Matthew Effect,” in 1968. At that time, the average age of a biomedical researcher in the US receiving his or her first significant funding was 35 or younger. That meant that researchers who had little in terms of fame (at 35, they would have completed a PhD and a post-doc and would be just starting out on their own) could still get funded if they wrote interesting proposals. So Merton’s observation about getting credit for one’s work, however true in terms of prestige, wasn’t adversely affecting the funding of new ideas.
  • Over the last 40 years, the importance of fame in science has increased. The effect has compounded because famous researchers have gathered the smartest and most ambitious graduate students and post-docs around them, so that each notable paper from a high-wattage group bootstraps their collective power. The famous grow more famous, and the younger researchers in their coterie are able to use that fame to their benefit. The effect of this concentration of power has finally trickled down to the level of funding: The average age on first receipt of the most common “starter” grants at the NIH is now almost 42. This means younger researchers without the strength of a fame-based community are cut out of the funding process, and their ideas, separate from an older researcher’s sphere of influence, don’t get pursued. This causes a founder effect in modern science, where the prestigious few dictate the direction of research. It’s not only unfair—it’s also actively dangerous to science’s progress.
  • How can we fund science in a way that is fair? By judging researchers independently of their fame—in other words, not by how many times their papers have been cited. By judging them instead via new measures, measures that until recently have been too ephemeral to use.
  • Right now, the gold standard worldwide for measuring a scientist’s worth is the number of times his or her papers are cited, along with the importance of the journal where the papers were published. Decisions of funding, faculty positions, and eminence in the field all derive from a scientist’s citation history. But relying on these measures entrenches the Matthew Effect: Even when the lead author is a graduate student, the majority of the credit accrues to the much older principal investigator. And an influential lab can inflate its citations by referring to its own work in papers that themselves go on to be heavy-hitters.
  • what is most profoundly unbalanced about relying on citations is that the paper-based metric distorts the reality of the scientific enterprise. Scientists make data points, narratives, research tools, inventions, pictures, sounds, videos, and more. Journal articles are a compressed and heavily edited version of what happens in the lab.
  • We have the capacity to measure the quality of a scientist across multiple dimensions, not just in terms of papers and citations. Was the scientist’s data online? Was it comprehensible? Can I replicate the results? Run the code? Access the research tools? Use them to write a new paper? What ideas were examined and discarded along the way, so that I might know the reality of the research? What is the impact of the scientist as an individual, rather than the impact of the paper he or she wrote? When we can see the scientist as a whole, we’re less prone to relying on reputation alone to assess merit.
  • Multidimensionality is one of the only counters to the Matthew Effect we have available. In forums where this kind of meritocracy prevails over seniority, like Linux or Wikipedia, the Matthew Effect is much less pronounced. And we have the capacity to measure each of these individual factors of a scientist’s work, using the basic discourse of the Web: the blog, the wiki, the comment, the trackback. We can find out who is talented in a lab, not just who was smart enough to hire that talent. As we develop the ability to measure multiple dimensions of scientific knowledge creation, dissemination, and re-use, we open up a new way to recognize excellence. What we can measure, we can value.
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    WHEN IT COMES TO SCIENTIFIC PUBLISHING AND FAME, THE RICH GET RICHER AND THE POOR GET POORER. HOW CAN WE BREAK THIS FEEDBACK LOOP?
Weiye Loh

Adventures in Flay-land: Dealing with Denialists - Delingpole Part III - 0 views

  • This post is about how one should deal with a denialist of Delingpole's ilk.
  • I saw someone I follow on Twitter retweet an update from another Twitter user called @AGW_IS_A_HOAX, which was this: "NZ #Climate Scientists Admit Faking Temperatures http://bit.ly/fHbdPI RT @admrich #AGW #Climategate #Cop16 #ClimateChange #GlobalWarming".
  • So I click on it. And this is how you deal with a denialist claim. You actually look into it. Here is the text of that article reproduced in full: New Zealand Climate Scientists Admit To Faking Temperatures: The Actual Temps Show Little Warming Over Last 50 YearsRead here and here. Climate "scientists" across the world have been blatantly fabricating temperatures in hopes of convincing the public and politicians that modern global warming is unprecedented and accelerating. The scientists doing the fabrication are usually employed by the government agencies or universities, which thrive and exist on taxpayer research dollars dedicated to global warming research. A classic example of this is the New Zealand climate agency, which is now admitting their scientists produced bogus "warming" temperatures for New Zealand. "NIWA makes the huge admission that New Zealand has experienced hardly any warming during the last half-century. For all their talk about warming, for all their rushed invention of the “Eleven-Station Series” to prove warming, this new series shows that no warming has occurred here since about 1960. Almost all the warming took place from 1940-60, when the IPCC says that the effect of CO2 concentrations was trivial. Indeed, global temperatures were falling during that period.....Almost all of the 34 adjustments made by Dr Jim Salinger to the 7SS have been abandoned, along with his version of the comparative station methodology."A collection of temperature-fabrication charts.
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  • I check out the first link, the first "here" where the article says "Read here and here". I can see that there's been some sort of dispute between two New Zealand groups associated with climate change. One is New Zealand’s Climate Science Coalition (NZCSC) and the other is New Zealand’s National Institute of Water and Atmospheric Research (NIWA), but it doesn't tell me a whole lot more than I already got from the other article.
  • I check the second source behind that article. The second article, I now realize, is published on the website of a person called Andrew Montford with whom I've been speaking recently and who is the author of a book titled The Hockey Stick Illusion. I would not label Andrew a denialist. He makes some good points and seems to be a decent guy and geniune sceptic (This is not to suggest all denialists are outwardly dishonest; however, they do tend to be hard to reason with). Again, this article doesn't give me anything that I haven't already seen, except a link to another background source. I go there.
  • From this piece written up on Scoop NZNEWSUK I discover that a coalition group consisting of the NZCSC and the Climate Conversation Group (CCG) has pressured the NIWA into abandoning a set of temperature record adjustments of which the coalition dispute the validity. This was the culmination of a court proceeding in December 2010, last month. In dispute were 34 adjustments that had been made by Dr Jim Salinger to the 7SS temperature series, though I don't know what that is exactly. I also discover that there is a guy called Richard Treadgold, Convenor of the CCG, who is quoted several times. Some of the statements he makes are quoted in the articles I've already seen. They are of a somewhat snide tenor. The CSC object to the methodology used by the NIWA to adjust temperature measurements (one developed as part of a PhD thesis), which they critique in a paper in November 2009 with the title "Are we feeling warmer yet?", and are concerned about how this public agency is spending its money. I'm going to have to dig a bit deeper if I want to find out more. There is a section with links under the heading "Related Stories on Scoop". I click on a few of those.
  • One of these leads me to more. Of particular interest is a fairly neutral article outlining the progress of the court action. I get some more background: For the last ten years, visitors to NIWA’s official website have been greeted by a graph of the “seven-station series” (7SS), under the bold heading “New Zealand Temperature Record”. The graph covers the period from 1853 to the present, and is adorned by a prominent trend-line sloping sharply upwards. Accompanying text informs the world that “New Zealand has experienced a warming trend of approximately 0.9°C over the past 100 years.” The 7SS has been updated and used in every monthly issue of NIWA’s “Climate Digest” since January 1993. Its 0.9°C (sometimes 1.0°C) of warming has appeared in the Australia/NZ Chapter of the IPCC’s 2001 and 2007 Assessment Reports. It has been offered as sworn evidence in countless tribunals and judicial enquiries, and provides the historical base for all of NIWA’s reports to both Central and Local Governments on climate science issues and future projections.
  • now I can see why this is so important. The temperature record informs the conclusions of the IPCC assessment reports and provides crucial evidence for global warming.
  • Further down we get: NIWA announces that it has now completed a full internal examination of the Salinger adjustments in the 7SS, and has forwarded its “review papers” to its Australian counterpart, the Bureau of Meteorology (BOM) for peer review.and: So the old 7SS has already been repudiated. A replacement NZTR [New Zealand Temperature Record] is being prepared by NIWA – presumably the best effort they are capable of producing. NZCSC is about to receive what it asked for. On the face of it, there’s nothing much left for the Court to adjudicate.
  • NIWA has been forced to withdraw its earlier temperature record and replace it with a new one. Treadgold quite clearly states that "NIWA makes the huge admission that New Zealand has experienced hardly any warming during the last half-century" and that "the new temperature record shows no evidence of a connection with global warming." Earlier in the article he also stresses the role of the CSC in achieving these revisions, saying "after 12 months of futile attempts to persuade the public, misleading answers to questions in the Parliament from ACT and reluctant but gradual capitulation from NIWA, their relentless defence of the old temperature series has simply evaporated. They’ve finally given in, but without our efforts the faulty graph would still be there."
  • All this leads me to believe that if I look at the website of NIWA I will see a retraction of the earlier position and a new position that New Zealand has experienced no unusual warming. This is easy enough to check. I go there. Actually, I search for it to find the exact page. Here is the 7SS page on the NIWA site. Am I surprised that NIWA have retracted nothing and that in fact their revised graph shows similar results? Not really. However, I am somewhat surprised by this page on the Climate Conversation Group website which claims that the 7SS temperature record is as dead as the parrot in the Monty Python sketch. It says "On the eve of Christmas, when nobody was looking, NIWA declared that New Zealand had a new official temperature record (the NZT7) and whipped the 7SS off its website." However, I've already seen that this is not true. Perhaps there was once a 7SS graph and information about the temperature record on the site's homepage that can no longer be seen. I don't know. I can only speculate. I know that there is a section on the NIWA site about the 7SS temperature record that contains a number of graphs and figures and discusses recent revisions. It has been updated as recently as December 2010, last month. The NIWA page talks all about the 7SS series and has a heading that reads "Our new analysis confirms the warming trend".
  • The CCG page claims that the new NZT7 is not in fact a revision but rather a replacement. Although it results in a similar curve, the adjustments that were made are very different. Frankly I can't see how that matters at the end of the day. Now, I don't really know whether I can believe that the NIWA analysis is true, but what I am in no doubt of whatsoever is that the statements made by Richard Treadgold that were quoted in so many places are at best misleading. The NIWA has not changed its position in the slightest. The assertion that the NIWA have admitted that New Zealand has not warmed much since 1960 is a politician's careful argument. Both analyses showed the same result. This is a fact that NIWA have not disputed; however, they still maintain a connection to global warming. A document explaining the revisions talks about why the warming has slowed after 1960: The unusually steep warming in the 1940-1960 period is paralleled by an unusually large increase in northerly flow* during this same period. On a longer timeframe, there has been a trend towards less northerly flow (more southerly) since about 1960. However, New Zealand temperatures have continued to increase over this time, albeit at a reduced rate compared with earlier in the 20th century. This is consistent with a warming of the whole region of the southwest Pacific within which New Zealand is situated.
  • Denialists have taken Treadgold's misleading mantra and spread it far and wide including on Twitter and fringe websites, but it is faulty as I've just demonstrated. Why do people do this? Perhaps they are hoping that others won't check the sources. Most people don't. I hope this serves as a lesson for why you always should.
Weiye Loh

James Delingpole blogs about Simon Singh - slsingh's posterous - 0 views

  • James Delingpole criticised me in this blog ("The curious double standards of Simon Singh")
  • Quotes from Delingpole's blog are in blue. 1.      “Yet in the opinion of Singh, the worldwide Climate Change industry is the one area where the robust scepticism and empiricism he professes to believe in just doesn’t apply.” No – where I have said this? Climate change is an area that requires extreme skepticism, i.e., questioning and challenging. However, despite all the challenges, the climate change consensus remains solid. (By the way, I thought Professor Nurse explained this to you quite clearly and slowly.)
  • 2.      “Apparently, the job of a journalist is just to accept the word of “the scientists” and take it as read that being as they are “scientists” their word is God and it brooks no questioning or dissent.” No – where have I said this? I have been a science journalist for almost two decades and where there are differing opinions it is important to consider the overall evidence. And, having been a scientist for a short time (PhD, particle physics), I realise that nobody should be treated as a god.
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  • 3.      “That’s it. Finished. There’s a “consensus” on global warming. It’s immutable and correct.” No – where have I said this? In fact, you must have seen my tweet this afternoon: “I might be wrong, the climate consensus might be wrong, but the probability that the consensus is correct is +90% on the key points.”
  • 5.      “What sickens me is the hypocrisy of people who claim to be in favour of speech, claim to believe in empiricism, claim to be sceptics yet refuse to accept room for an honest, open debate on one of the most important political issues of our time.” No - where have I said this? All I have done is disagree with you, point out your lack of qualifications and mock you. I did not threaten to silence you or sue you. In fact, my approach was quite the opposite – you must have seen my tweet this afternoon encouraging further debate: “V happy for me & climate expert to meet you to discuss consensus, record it & put it in online unedited.”
  • To answer your question and explain my tweet; you denied Nurse’s explanation of the role of consensus in science and you dismissed Nurse’s perfectly valid analogy about consensus … so you do indeed seem to think you are in a better position than Nurse to understand how science operates.
  • 7.      “What I am saying, and I say almost every day, is that the evidence is not as robust as the “consensus” scientists claim” Okay, that’s what you say. James Delingpole, English graduate. You might be right. Those who think that the consensus is very likely to be valid include, as far as I know, all of the following and more: Paul Nurse, Ben Goldacre and myself, who you have come up against this week (but we are very small fry). Editors of the world’s foremost science journals, Science and Nature. The most senior science editors in UK national broadsheet newspapers. The overwhelming majority of science Nobel Laureates. All the world’s national academy’s of science. The overwhelming majority of climate scientists. Also, I must stress that all of the people/groups above will have questions about elements of the consensus and realisethat the models have uncertainties, but they also agree that the broad consensus is very likely (90%) to be correct. In short, the uncertainties are small enough to derive some fairly solid conclusions.
  • 8.  “Yet despite apparently knowing nothing more about me and what I do than he has learned from a heavily politicised BBC documentary, and maybe heard from his mob of Twitter bully chums or read in the Guardian, Singh feels able to decide that Paul Nurse is right on this issue and I’m wrong.” No – I have followed your rants for quite a while from afar.  I am not saying that Paul Nurse is right and you are wrong. Instead, both Paul Nurse and I are saying that we are not convinced by your views, but we are convinced by the sheer weight of evidence behind the consensus that has gathered over the course of three decades
Weiye Loh

Roger Pielke Jr.'s Blog: The Fall of Karl-Theodor zu Guttenberg - 0 views

  • The German defense minister, Karl-Theodor zu Guttenberg, has resigned following the exposure of plagiarism on a massive scale in his PhD dissertation.  The figure above shows the results of a page-by-page Wiki effort to "audit" his dissertation.  The black and red colors indicate text that was directly (black) or partially (red) copied from other sources.  The white parts were judged OK and the blue represents the front and back matter.
  • Guttenberg's defense of his actions, which were supported by Chancellor Angela Merkel, sought to focus attention on those critiquing him in an effort to downplay the significance of the academic misconduct
  • But in the end, it appears that the presures brought to bear from Germany's substantial academic community made continuation for Guttenberg impossible
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  • Even so, I expect that we will again see Karl-Theodor zu Guttenberg in German politics, and Germany will then re-engage a debate over science, politics, trust and legitimacy
Weiye Loh

Can a group of scientists in California end the war on climate change? | Science | The ... - 0 views

  • Muller calls his latest obsession the Berkeley Earth project. The aim is so simple that the complexity and magnitude of the undertaking is easy to miss. Starting from scratch, with new computer tools and more data than has ever been used, they will arrive at an independent assessment of global warming. The team will also make every piece of data it uses – 1.6bn data points – freely available on a website. It will post its workings alongside, including full information on how more than 100 years of data from thousands of instruments around the world are stitched together to give a historic record of the planet's temperature.
  • Muller is fed up with the politicised row that all too often engulfs climate science. By laying all its data and workings out in the open, where they can be checked and challenged by anyone, the Berkeley team hopes to achieve something remarkable: a broader consensus on global warming. In no other field would Muller's dream seem so ambitious, or perhaps, so naive.
  • "We are bringing the spirit of science back to a subject that has become too argumentative and too contentious," Muller says, over a cup of tea. "We are an independent, non-political, non-partisan group. We will gather the data, do the analysis, present the results and make all of it available. There will be no spin, whatever we find." Why does Muller feel compelled to shake up the world of climate change? "We are doing this because it is the most important project in the world today. Nothing else comes close," he says.
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  • There are already three heavyweight groups that could be considered the official keepers of the world's climate data. Each publishes its own figures that feed into the UN's Intergovernmental Panel on Climate Change. Nasa's Goddard Institute for Space Studies in New York City produces a rolling estimate of the world's warming. A separate assessment comes from another US agency, the National Oceanic and Atmospheric Administration (Noaa). The third group is based in the UK and led by the Met Office. They all take readings from instruments around the world to come up with a rolling record of the Earth's mean surface temperature. The numbers differ because each group uses its own dataset and does its own analysis, but they show a similar trend. Since pre-industrial times, all point to a warming of around 0.75C.
  • You might think three groups was enough, but Muller rolls out a list of shortcomings, some real, some perceived, that he suspects might undermine public confidence in global warming records. For a start, he says, warming trends are not based on all the available temperature records. The data that is used is filtered and might not be as representative as it could be. He also cites a poor history of transparency in climate science, though others argue many climate records and the tools to analyse them have been public for years.
  • Then there is the fiasco of 2009 that saw roughly 1,000 emails from a server at the University of East Anglia's Climatic Research Unit (CRU) find their way on to the internet. The fuss over the messages, inevitably dubbed Climategate, gave Muller's nascent project added impetus. Climate sceptics had already attacked James Hansen, head of the Nasa group, for making political statements on climate change while maintaining his role as an objective scientist. The Climategate emails fuelled their protests. "With CRU's credibility undergoing a severe test, it was all the more important to have a new team jump in, do the analysis fresh and address all of the legitimate issues raised by sceptics," says Muller.
  • This latest point is where Muller faces his most delicate challenge. To concede that climate sceptics raise fair criticisms means acknowledging that scientists and government agencies have got things wrong, or at least could do better. But the debate around global warming is so highly charged that open discussion, which science requires, can be difficult to hold in public. At worst, criticising poor climate science can be taken as an attack on science itself, a knee-jerk reaction that has unhealthy consequences. "Scientists will jump to the defence of alarmists because they don't recognise that the alarmists are exaggerating," Muller says.
  • The Berkeley Earth project came together more than a year ago, when Muller rang David Brillinger, a statistics professor at Berkeley and the man Nasa called when it wanted someone to check its risk estimates of space debris smashing into the International Space Station. He wanted Brillinger to oversee every stage of the project. Brillinger accepted straight away. Since the first meeting he has advised the scientists on how best to analyse their data and what pitfalls to avoid. "You can think of statisticians as the keepers of the scientific method, " Brillinger told me. "Can scientists and doctors reasonably draw the conclusions they are setting down? That's what we're here for."
  • For the rest of the team, Muller says he picked scientists known for original thinking. One is Saul Perlmutter, the Berkeley physicist who found evidence that the universe is expanding at an ever faster rate, courtesy of mysterious "dark energy" that pushes against gravity. Another is Art Rosenfeld, the last student of the legendary Manhattan Project physicist Enrico Fermi, and something of a legend himself in energy research. Then there is Robert Jacobsen, a Berkeley physicist who is an expert on giant datasets; and Judith Curry, a climatologist at Georgia Institute of Technology, who has raised concerns over tribalism and hubris in climate science.
  • Robert Rohde, a young physicist who left Berkeley with a PhD last year, does most of the hard work. He has written software that trawls public databases, themselves the product of years of painstaking work, for global temperature records. These are compiled, de-duplicated and merged into one huge historical temperature record. The data, by all accounts, are a mess. There are 16 separate datasets in 14 different formats and they overlap, but not completely. Muller likens Rohde's achievement to Hercules's enormous task of cleaning the Augean stables.
  • The wealth of data Rohde has collected so far – and some dates back to the 1700s – makes for what Muller believes is the most complete historical record of land temperatures ever compiled. It will, of itself, Muller claims, be a priceless resource for anyone who wishes to study climate change. So far, Rohde has gathered records from 39,340 individual stations worldwide.
  • Publishing an extensive set of temperature records is the first goal of Muller's project. The second is to turn this vast haul of data into an assessment on global warming.
  • The big three groups – Nasa, Noaa and the Met Office – work out global warming trends by placing an imaginary grid over the planet and averaging temperatures records in each square. So for a given month, all the records in England and Wales might be averaged out to give one number. Muller's team will take temperature records from individual stations and weight them according to how reliable they are.
  • This is where the Berkeley group faces its toughest task by far and it will be judged on how well it deals with it. There are errors running through global warming data that arise from the simple fact that the global network of temperature stations was never designed or maintained to monitor climate change. The network grew in a piecemeal fashion, starting with temperature stations installed here and there, usually to record local weather.
  • Among the trickiest errors to deal with are so-called systematic biases, which skew temperature measurements in fiendishly complex ways. Stations get moved around, replaced with newer models, or swapped for instruments that record in celsius instead of fahrenheit. The times measurements are taken varies, from say 6am to 9pm. The accuracy of individual stations drift over time and even changes in the surroundings, such as growing trees, can shield a station more from wind and sun one year to the next. Each of these interferes with a station's temperature measurements, perhaps making it read too cold, or too hot. And these errors combine and build up.
  • This is the real mess that will take a Herculean effort to clean up. The Berkeley Earth team is using algorithms that automatically correct for some of the errors, a strategy Muller favours because it doesn't rely on human interference. When the team publishes its results, this is where the scrutiny will be most intense.
  • Despite the scale of the task, and the fact that world-class scientific organisations have been wrestling with it for decades, Muller is convinced his approach will lead to a better assessment of how much the world is warming. "I've told the team I don't know if global warming is more or less than we hear, but I do believe we can get a more precise number, and we can do it in a way that will cool the arguments over climate change, if nothing else," says Muller. "Science has its weaknesses and it doesn't have a stranglehold on the truth, but it has a way of approaching technical issues that is a closer approximation of truth than any other method we have."
  • It might not be a good sign that one prominent climate sceptic contacted by the Guardian, Canadian economist Ross McKitrick, had never heard of the project. Another, Stephen McIntyre, whom Muller has defended on some issues, hasn't followed the project either, but said "anything that [Muller] does will be well done". Phil Jones at the University of East Anglia was unclear on the details of the Berkeley project and didn't comment.
  • Elsewhere, Muller has qualified support from some of the biggest names in the business. At Nasa, Hansen welcomed the project, but warned against over-emphasising what he expects to be the minor differences between Berkeley's global warming assessment and those from the other groups. "We have enough trouble communicating with the public already," Hansen says. At the Met Office, Peter Stott, head of climate monitoring and attribution, was in favour of the project if it was open and peer-reviewed.
  • Peter Thorne, who left the Met Office's Hadley Centre last year to join the Co-operative Institute for Climate and Satellites in North Carolina, is enthusiastic about the Berkeley project but raises an eyebrow at some of Muller's claims. The Berkeley group will not be the first to put its data and tools online, he says. Teams at Nasa and Noaa have been doing this for many years. And while Muller may have more data, they add little real value, Thorne says. Most are records from stations installed from the 1950s onwards, and then only in a few regions, such as North America. "Do you really need 20 stations in one region to get a monthly temperature figure? The answer is no. Supersaturating your coverage doesn't give you much more bang for your buck," he says. They will, however, help researchers spot short-term regional variations in climate change, something that is likely to be valuable as climate change takes hold.
  • Despite his reservations, Thorne says climate science stands to benefit from Muller's project. "We need groups like Berkeley stepping up to the plate and taking this challenge on, because it's the only way we're going to move forwards. I wish there were 10 other groups doing this," he says.
  • Muller's project is organised under the auspices of Novim, a Santa Barbara-based non-profit organisation that uses science to find answers to the most pressing issues facing society and to publish them "without advocacy or agenda". Funding has come from a variety of places, including the Fund for Innovative Climate and Energy Research (funded by Bill Gates), and the Department of Energy's Lawrence Berkeley Lab. One donor has had some climate bloggers up in arms: the man behind the Charles G Koch Charitable Foundation owns, with his brother David, Koch Industries, a company Greenpeace called a "kingpin of climate science denial". On this point, Muller says the project has taken money from right and left alike.
  • No one who spoke to the Guardian about the Berkeley Earth project believed it would shake the faith of the minority who have set their minds against global warming. "As new kids on the block, I think they will be given a favourable view by people, but I don't think it will fundamentally change people's minds," says Thorne. Brillinger has reservations too. "There are people you are never going to change. They have their beliefs and they're not going to back away from them."
Weiye Loh

Epiphenom: People: not as nice as they think they are - 0 views

  • Just how far divorced from reality we are was shown recently in an elegant study by Oriel Feldmanhall, a PhD candidate at the MRC Cognition and Brain Sciences Unit at Cambridge University, England. She's just presented the research at the Annual Meeting of the Cognitive Neuroscience Society in San Francisco, California.
  • she studied two groups of people. The first group she asked them to imagine a scenario where they would get paid a small sum to deliver painful but harmless electric shocks. 64% said they would never deliver a shock, and on average the participants would only deliver enough shocks to earn a paltry £4. The second group got the real deal. They actually administered the shocks, and saw the response on video (they were in an MRI scanner at the time). This time, a massive 96% of participants administered shocks. Those who saw video of the grimacing faces of their victims pocketed £11.55. Those who were spared that and only saw the hands walked away with a cool £15.77.
  • Brains scans vividly illuminated the emotional turmoil going on in the subjects who participated in the real experiment. They had a lot of activity in their insula, a deep, primitive part of the brain thought to be linked to moral intuition. People who did the pen-and-paper, hypothetical version had no such turmoil.
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  • So, does this mean that we should throw away all those pen-and-paper and survey-based studies of religion. Well no - they still tell us something. It's just not entirely clear what they are telling us!
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