Blindspot: Hidden Biases of Good People

Blindspot: Hidden Biases of Good People ᅩ Get Blindspot: Hidden Biases of Good People online ᆼ Book Author Mahzarin R Banaji ቀ 1MindbugsIt is an ordinary day on a college campus Students and professors of experimental psychology have filed into a lecture hall to listen to a distinguished visiting scientist explain how our minds perceive the physical world Nothing about his tweed jacket and unkempt hair suggests the challenge he is about to deliver A few minutes into the lecture, he says matter of factly, As you can see, the two tabletops are exactly the same in shape and size.Shuffling in their seats, some in the audience frown while others smile in embarrassment because, as anyone can plainly see, he is dead wrong Some tilt their heads from side to side, to test if a literal shift in perspective will help Others wonder whether they should bother staying for the lecture if this nonsense is just the start.The nonbelievers are caught short, though, when the speaker proceeds to show the truth of his audacious claim Using an overhead projector, he takes a transparent plastic sheet containing only a single red parallelogram, lays it over the tabletop on the left, and shows that it fits perfectly He then rotates the plastic sheet clockwise, and places the parallelogram over the tabletop on the right it fits perfectly there as well An audible gasp fills the hall as the speaker moves the red frame back and forth, and the room breaks into laugher With nothing than a faint smile the speaker goes on to complete his lecture on how the eye receives, the brain registers, and the mind interprets visual information.Unconvinced You can try the test yourself Find some paper thin enough to trace the outline of one of the tabletops, and then move the outline over to the other tabletop If you dont find that the shape of the first tabletop fits identically onto the second tabletop, there can be only one explanationyouve botched the tracing job, because the table surfaces are precisely the same.But how can this be Visual MindbugsYou, like us, have just succumbed to a famous visual illusion, one that produces an error in the minds ability to perceive a pair of objects as they actually are We will call such errors mindbugsingrained habits of thought that lead to errors in how we perceive, remember, reason, and make decisions.1The psychologist Roger Shepard, a genius who has delighted in the art of confounding, created this illusion called Turning the Tables When we look at the images of the two table surfaces, our retinas do, in fact, receive them as identical in shape and size In other words, the retina sees the tabletops quite accurately However, when the eye transmits that information to the brains visual cortex, where depth is perceived, the trouble begins.The incorrect perception that the two tabletops are strikingly different in shape occurs effortlessly, because the brain automatically converts the 2 D image that exists both on the page and on the retina into a 3 D interpretation of the tabletop shapes as they must be in the natural world The automatic processes of the mind, in other words, impose the third dimension of depth onto this scene And the conscious, reflective processes of the mind accept the illusion unquestioningly So much so that when encountering the speakers assertion that the tabletop outlines are the same, the conscious minds first reaction is to consider it to be sheer nonsense.Natural selection has endowed the minds of humans and other large animals to operate successfully in a three dimensional world Having no experience in a world other than a 3 D one, the brain we have continues to perform its conscious perceptual corrections of the tables dimensions to make them appear as they would in the traditional 3 D world.2Contrary to expectation, this error reflects not a weakness of adaptation but rather a triumph, for Shepards tabletops highlight the success of a visual system that has adapted effectively to the combination of a two dimensional retina inside the eye and a three dimensional world outside The minds automatic understanding of the data is so confident that, as Shepard puts it, any knowledge or understanding of the illusion we may gain at the intellectual level remains virtually powerless to diminish the magnitude of the illusion Take a look at the tables again The knowledge you now have that the tables have identical surfaces has no corrective effect in diminishing the illusion 3Disconcerting as this experience is, it serves as a vivid illustration of a signal property of the mindit does a great deal of its work automatically, unconsciously, and unintentionally Mention of the minds unconscious operation may summon up for you a visual memory of the bearded, cigar smoking Sigmund Freud, who rightly gets credit for having brought the term unconscious into everyday use However, an understanding of the unconscious workings of the mind has changed greatly in the century since Freuds pathbreaking observations Freud portrayed an omniscient unconscious with complex motives that shape important aspects of human mind and behaviorfrom dreams to memories to madness, and ultimately to civilization itself Today, however, Freuds arguments, detached as they have remained from scientific verification, have a greatly reduced impact on scientific understanding of unconscious mental life.Instead, the modern conception of the unconscious mind must be credited to another historical figure, one far less known than Freud A nineteenth century German physicist and physiologist, Hermann von Helmholtz, offered the name unbewuter Schlu, or unconscious inference, to describe how an illusion like Shepards tabletops might work.4 Helmholtz aimed to describe the means by which the mind creates from physical data the conscious perceptions that define our ordinary and subjective experiences of seeing Our visual system is capable of being tricked by a simple 2 D image, because an unconscious mental act replaces the 2 D shape of the retinal image with a consciously perceived 3 D shape of the inferred object it suggests.Now try this Read the following sixteen words with sufficiently close attention so that you can expect to be able to recognize them when you see them again a few pages hence AntSpiderFeelersWebFlyPoisonSlimyCrawlBeeWingBugSmallBiteFrightWaspCreepyIn the meantime, heres another striking example of unconscious inference in the form of a checkerboard and cylinder to confound us further When we tell you that the squares marked A and B are exactly the same in their coloring, you will doubtless believe us to be wrong But take a thick piece of opaque paper, one large enough to cover the entire picture, mark with a point the two squares labeled A and B, and make a circular hole just a bit smaller than the checkerboard square on which each sits When you look only through the holes and without the rest of the image, you will see that they are indeed identical in color.Again the culprit is an unconscious inference, a mindbug that automatically goes to work on the image What causes this remarkable failure of perception Several features of this checkerboard image are involved, but let us attend to the most obvious ones First of all, notice that B is surrounded by several dark squares that make it look lighter than it is, merely by contrast likewise, just the opposite, A is surrounded by adjacent lighter squares that make it seem darker than it actually is Second, notice the shadow being cast by the cylinder This darkens the squares within the shadowincluding the one marked Bbut the mind automatically undoes this darkening to correct for the shadow, lightening our conscious experience of B.As with the table illusion, the mechanisms that produce this one also exist to enable us to see and understand the world successfully Ted Adelson, a vision scientist at MIT and creator of this checkershadow image, writes As with many so called illusions, this effect really demonstrates the success rather than the failure of the visual system The visual system is not very good at being a physical light meter, but that is not its purpose.5 Such examples force us to ask a general question To what extent do our minds possess efficient and accurate methods that fail us so miserably when we put them to use in a slightly revised context Memory MindbugsThink back to the words you memorized earlier, as you examine the list below As you review each word, without turning back to the original list, try to recall whether each word you see here also appeared in the list you read earlier If you have paper and pencil handy, and to avoid any doubt about your answers, copy all the words you recall seeing on the previous list and leave out any word that, by your recollection, did not appear before.Maple Ant Poison Fly Stem Berry Feelers Slimy Birch Wing Leaves Tree Roots Bite Web Bug Small Oak Crawl Acorn Wasp Branch Insect Bee Willow Fright Spider Pine CreepyTo be correct, you should have left out all twelve tree related words, starting with maple and ending with pine, for indeed, none of the tree words appeared on the earlier list You should have also written down all the insect related words, except onethe word insect itself That word was not on the original list If, as is quite likely, you included the word insect as one youd seen before, you have demonstrated a powerful but ordinary mindbug that can create false memories.In retrospect, its easy to see the basis for the false memory for insect The mind is an automatic association making machine When it encounters any informationwords, pictures, or even complex ideasrelated information automatically comes to mind In this case, the words in the original list had an insect theme Unthinkingly, we use that shared theme as we try to remember the past and, in so doing, stumble easily when we come across the word insect itself Such a memory error is called a false alarmwe mistakenly remember something that actually did not occur.In a study conducted at Washington University, 82 percent of the time students remembered seeing words that shared a themesay, insectsbut were not on the original lists That huge percentage of error is especially remarkable when compared to the 75 percent correct memory for words that were actually on the list In other words, mindbugs can be powerful enough to produce greater recollection of things that didnt occur than of things that did occur.6The errors witnessed so far may not seem terribly consequential Whats the harm, after all, in misremembering a word But imagine being interrogated about a potential suspect in a crime you have witnessed Could the false memory mindbug interfere with your accuracy in reporting what you saw If the suspect bears some resemblance to the criminalfor example, has a similar beardmight a false identification result If so, with what probability Elizabeth Loftus is among psychologys most creative experimentalists Now at the University of California at Irvine, she has made it her lifes work to study memory mindbugs in eyewitnesses by presenting simulated burglaries, car accidents, and other common mishaps and then testing peoples memories of them She has found not only that errors in these eyewitness memories are disturbingly frequent but also that even slight changes in the way in which the witness is prompted during questioning to remember an event can alter the content of what is remembered.In one famous study, Loftus showed witnesses scenes from an automobile accident in which two cars had collided with no personal injury Later she asked half the witnesses, How fast was the car going when it hit the other car She asked the other half, How fast was the car going when it smashed into the other car Those who were asked the smashed question gave higher estimates of the speed of the vehicle, compared to those who were asked the hit question, in addition to which they were likely to mistakenly insert a memory of broken glass at the accident scene even though there was none in what they saw.7Psychologists call this mindbug retroactive interferencean influence of after the experience information on memory Loftus gave this a memorable name the misinformation effect Her point is that a small change in language can produce a consequential change in what is remembered, often resulting in mistaken testimony by eyewitnesses who relied on mistaken information.In recent years it has become clear that the number of wrongful convictions produced by eyewitness errors is substantial.8 From the efforts of the Innocence Project, an organization dedicated to exonerating the wrongfully convicted through DNA testing, 250 people so far have been exonerated by conclusive tests that confirmed their innocence Of these, 190 cases had been decided based on a mistaken eyewitness account In other words, in nearly 75 percent of the cases of wrongful conviction, the failure of eyewitness memory assuming no malign intent on the part of the witness to wrongfully convict was responsible for tragedies that many societies believe to be so intolerable that their laws explicitly err on the side of allowing the guilty to walk free.Availability and Anchoring Two Famous MindbugsPick the correct answer in each of the three pairs Each year, do people in the United States die from cause a or cause b 1 a murder b diabetes2 a murder b suicide3 a car accidents b abdominal cancerMost of us give the answer b for question 1 and a for questions 2 and 3 when in fact the correct answer to each question is b In other words, we get the first one right but not the next two Psychologists Daniel Kahneman and Amos Tversky named and described the generic version of this mindbug, calling it the availability heuristic When instances of one type of event such as death by murder rather than suicide come easily to mind than those of another type, we tend to assume that the first event also must occur frequently in the world Murder is likely to receive media attention than suicide, not to mention that the stigma of suicide makes it less likely to be information that is shared beyond the family Car accidents are likewise likely to be mentioned because of their shocking nature, whereas abdominal cancer is one of many kinds of cancer, a common cause of death Because murder and car accidents come to mind easily, they are wrongly assumed to occur frequently This is seemingly reasonable, but it can lead us to overestimate car accident deaths However, greater ease of availability to the mind doesnt mean greater frequency of occurrence in the world These kinds of mistakes occur routinely, and are often accompanied with great decision costs.9Dan Ariely, a behavioral economist, asked students at MIT to write down the last two digits of their Social Security number on a piece of paper He then asked them to estimate the price of a keyboard, a trackball, or a design book, items easily familiar to MIT students Ariely collected these two numbers from each person and then computed the correlation between them, looking for a possible relation between the two digits of the Social Security number and the estimated prices Logically, of course, there is no connection between the two sets of numbers, so the correlation should have been at or close to zero.In fact, Ariely discovered that there was a substantial correlation between the two sets of numbers Those for whom the last two digits of their Social Security number happened to lie between 00 and 19 said they would pay 8.62 on average for the trackball those with digits between 20 and 39 were willing to pay , 11.82 those with digits between 40 and 59 offered up even , 13.45 and the poor souls whose Social Security numbers happened to end in digits from 60 to 79 and 80 to 99 offered to pay 21.18 and 26.18all for the very same object 10This, the second of the two famous mindbugs, was discovered by psychologists Daniel Kahneman and Amos Tversky, who called it anchoring, to capture the idea that the mind doesnt search for information in a vacuum.11 Rather, it starts by using whatever information is immediately available as a reference point or anchor and then adjusting The result, in this case of the random digit anchor, was the potentially self harming penalty of being willing to pay too much.Those who fall prey to the availability and anchoring heuristics are not feeble minded or gullible than others Each of us is an ever ready victim Property values can be altered by manipulated price anchors that inflate or deflate the actual price The valuation of stocks can be influenced by their suggested market price than actual value, perhaps providing some of the explanation for the persistence of financial bubbles.12Conversational easy to read, and best of all, it has the potential, at least, to change the way you think about yourself.Leonard Mlodinow, The New York Review of Books Accessible and authoritative While we may not have much power to eradicate our own prejudices, we can counteract them The first step is to turn a hidden bias into a visible one What if were not the magnanimous people we think we are The Washington Post Banaji and Greenwald deserve a major award for writing such a lively and engaging book that conveys an important message Mental processes that we are not aware of can affect what we think and what we do Blindspot is one of the most illuminating books ever written on this topic.Elizabeth F Loftus, Ph.D., distinguished professor, University of California, Irvine past president, Association for Psychological Science author of Eyewitness Testimony A wonderfully cogent, socially relevant, and engaging book that helps us think smarter and humanely This is psychological science at its best, by two of its shining stars.David G Myers, professor, Hope College, and author of Intuition Its Powers and Perils The authors work has revolutionized social psychology, proving thatunconsciouslypeople are affected by dangerous stereotypes Psychology TodayAn accessible and persuasive account of the causes of stereotyping and discrimination Banaji and Greenwald will keep even nonpsychology students engaged with plenty of self examinations and compelling elucidations of case studies and experiments Publishers Weekly A stimulating treatment that should help readers deal with irrational biases that they would otherwise consciously reject Kirkus Reviews From the Hardcover edition. Blindspot Hidden Biases of Good People Buy Blindspot People on FREE SHIPPING qualified orders Blindspot The Book In Blindspot, Mahzarin Banaji and Anthony Greenwald explore hidden biases that we all carry from a lifetime experiences with social groups What Does Modern Prejudice Look Like new book, People, her co author, Greenwald, psychologist at the University Bias blind spot Wikipedia bias is cognitive recognizing impact judgment others, while failing to see one s Rise Of Bias Busters How Unconscious Bias Startups consultants are rushing into diversity training business claiming they can wipe out scourge unconscious in Implicit trainings used fight racism Many prejudiced but hope escape label racist or sexist And theory implicit has handed them an excuse Decision Making Techniques Skills from Learn how use than different decision making techniques make better decisions, faster authors reveal based their experience Implicit Association Test, method revolutionized way scientists learn about human mind gives us glimpse what lies within metaphoric blindspot Inner Come discuss this book th October , pm, Fountain Harvester, Milton Keynes Comment below email me let know you re by A great fairly quick read for This focuses biases, those operate our level consciousness It includes instruments test your own Most may hold racial starring don t go so far as say America racist, least not usually understood BookWoman BookGroup Discussion Blindspot BookWoman by These self perceptions challenged leading psychologists R G DIVERSITY BOOK CLUB BLINDSPOT We continue Mahzahrin Delacort Press, New York, Citing influence mindbugs ingrained judgments unconsciously behaviorMahzarin Department Psychology taught Yale where she was Ruben Post Halleck Professor Psychology Banaji, Crowder, Robert September bankruptcy everyday memory research PDF American Psychologist doi X seminal article two primary methods experimental erwarb am Nizam College einen Bachelor Englisch und Philosophie, der Osmania beide Hyderabad Master Allgemeiner Psychologie Biography Harvard University Short Pronunciation maaz uh REEN buh NAA jee born raised India, received PhD From Ohio State did postdoctoral work Washington Reuben ISBN Kostenloser Versand fr alle Bcher mit Mind Bugs TEDxBari Social been inquiring disparities between conscious values attitudes, discovering Edmond J Safra Center for elected fellow Society Experimental Psychologists, Academy Arts Sciences named Herbert Simon Fellow Political Science Author author avg rating, ratings, reviews, published Navigating World rati Cognition Attitudes, Self Esteem, ANTHONY GREENWALD AND MAHZARIN BANAJI Hixon, Hamilton Sherman, Perdue Gurt man, Interview Anthony once approached reporter interview When heard name magazine Secunderabad Am stlichen Seeufer ist sie bereits zusammengewachsen, weshalb oft nicht mehr als eigenstndige Stadt, sondern ein Teil Hyderabads association History cognition measurement psychology researchers asserted idea The Test Age Methodological Conceptual Review BRIAN NOSEK, GREENWALD, mong Make it Real mslearningmicrosoft Make To build n inclusive environment respects differences, essential look mindset UnderstandingPrejudice Anthology Understanding Discrimination, McGraw Hill anthology prejudice edited Scott Plous Wesleyan List Zoroastrians Adi Bulsara physicist Kanga Civil engineer, planned city Navi Mumbai Vashi bridge Ardaseer Cursetjee Wadia Blindspot: Hidden Biases of Good People

  • Format Kindle
  • 272 pages
  • 0345528433
  • Mahzarin R Banaji
  • Anglais
  • 26 July 2017