brain

50% of people infected with personality-changing brain parasites from cats

From Carl Zimmer’s “The Return of the Puppet Masters” (Corante: 17 January 2006):

I was investigating the remarkable ability parasites have to manipulate the behavior of their hosts. The lancet fluke Dicrocoelium dendriticum, for example, forces its ant host to clamp itself to the tip of grass blades, where a grazing mammal might eat it. It’s in the fluke’s interest to get eaten, because only by getting into the gut of a sheep or some other grazer can it complete its life cycle. Another fluke, Euhaplorchis californiensis, causes infected fish to shimmy and jump, greatly increasing the chance that wading birds will grab them.

Those parasites were weird enough, but then I got to know Toxoplasma gondii. This single-celled parasite lives in the guts of cats, sheddding eggs that can be picked up by rats and other animals that can just so happen be eaten by cats. Toxoplasma forms cysts throughout its intermediate host’s body, including the brain. And yet a Toxoplasma-ridden rat is perfectly healthy. That makes good sense for the parasite, since a cat would not be particularly interested in eating a dead rat. But scientists at Oxford discovered that the parasite changes the rats in one subtle but vital way.

The scientists studied the rats in a six-foot by six-foot outdoor enclosure. They used bricks to turn it into a maze of paths and cells. In each corner of the enclosure they put a nest box along with a bowl of food and water. On each the nests they added a few drops of a particular odor. On one they added the scent of fresh straw bedding, on another the bedding from a rat’s nests, on another the scent of rabbit urine, on another, the urine of a cat. When they set healthy rats loose in the enclosure, the animals rooted around curiously and investigated the nests. But when they came across the cat odor, they shied away and never returned to that corner. This was no surprise: the odor of a cat triggers a sudden shift in the chemistry of rat brains that brings on intense anxiety. (When researchers test anti-anxiety drugs on rats, they use a whiff of cat urine to make them panic.) The anxiety attack made the healthy rats shy away from the odor and in general makes them leery of investigating new things. Better to lie low and stay alive.

Then the researchers put Toxoplasma-carrying rats in the enclosure. Rats carrying the parasite are for the most part indistinguishable from healthy ones. They can compete for mates just as well and have no trouble feeding themselves. The only difference, the researchers found, is that they are more likely to get themselves killed. The scent of a cat in the enclosure didn’t make them anxious, and they went about their business as if nothing was bothering them. They would explore around the odor at least as often as they did anywhere else in the enclosure. In some cases, they even took a special interest in the spot and came back to it over and over again.

The scientists speculated that Toxoplasma was secreted some substance that was altering the patterns of brain activity in the rats. This manipulation likely evolved through natural selection, since parasites that were more likely to end up in cats would leave more offpsring.

The Oxford scientists knew that humans can be hosts to Toxoplasma, too. People can become infected by its eggs by handling soil or kitty litter. For most people, the infection causes no harm. Only if a person’s immune system is weak does Toxoplasma grow uncontrollably. That’s why pregnant women are advised not to handle kitty litter, and why toxoplasmosis is a serious risk for people with AIDS. Otherwise, the parasite lives quietly in people’s bodies (and brains). It’s estimated that about half of all people on Earth are infected with Toxoplasma.

Parasitologist Jaroslav Flegr of Charles University in Prague administered psychological questionnaires to people infected with Toxoplasma and controls. Those infected, he found, show a small, but statistically significant, tendency to be more self-reproaching and insecure. Paradoxically, infected women, on average, tend to be more outgoing and warmhearted than controls, while infected men tend to be more jealous and suspicious.

… [E. Fuller Torrey of the Stanley Medical Research Institute in Bethesda, Maryland] and his colleagues had noticed some intriguing links between Toxoplasma and schizophrenia. Infection with the parasite has been associated with damage to a certain class of neurons (astrocytes). So has schizophrenia. Pregnant women with high levels of Toxoplasma antibodies in their blood were more likely to give birth to children who would later develop schizophrenia. Torrey lays out more links in this 2003 paper. While none is a smoking gun, they are certainly food for thought. It’s conceivable that exposure to Toxoplasma causes subtle changes in most people’s personality, but in a small minority, it has more devastating effects.

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10,000 hours to reach expertise

From Malcolm Gladwell’s “A gift or hard graft?” (The Guardian: 15 November 2008):

This idea – that excellence at a complex task requires a critical, minimum level of practice – surfaces again and again in studies of expertise. In fact, researchers have settled on what they believe is a magic number for true expertise: 10,000 hours.

“In study after study, of composers, basketball players, fiction writers, ice-skaters, concert pianists, chess players, master criminals,” writes the neurologist Daniel Levitin, “this number comes up again and again. Ten thousand hours is equivalent to roughly three hours a day, or 20 hours a week, of practice over 10 years… No one has yet found a case in which true world-class expertise was accomplished in less time. It seems that it takes the brain this long to assimilate all that it needs to know to achieve true mastery.”

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Correcting wrong info reinforces false beliefs

From Jonathan M. Gitlin’s “Does ideology trump facts? Studies say it often does” (Ars Technica: 24 September 2008):

We like to think that people will be well informed before making important decisions, such as who to vote for, but the truth is that’s not always the case. Being uninformed is one thing, but having a population that’s actively misinformed presents problems when it comes to participating in the national debate, or the democratic process. If the findings of some political scientists are right, attempting to correct misinformation might do nothing more than reinforce the false belief.

This sort of misinformation isn’t hypothetical; in 2003 a study found that viewers of Fox News were significantly more misinformed about the Iraq war, with far greater percentages of viewers erroneously believing that Iraq possessed WMDs or that there was a credible link between the 9/11 attack and Saddam Hussein than those who got their news from other outlets like NPR and PBS. This has led to the rise of websites like FactCheck and SourceWatch.

Saying that correcting misinformation does little more than reinforce a false belief is a pretty controversial proposal, but the claim is based on a number of studies that examine the effect of political or ideological bias on fact correction. In the studies, volunteers were shown news items or political adverts that contained misinformation, followed by a correction. For example, a study by John Bullock of Yale showed volunteers a political ad created by NARAL that linked Justice John Roberts to a violent anti-abortion group, followed by news that the ad had been withdrawn. Interestingly, Democratic participants had a worse opinion of Roberts after being shown the ad, even after they were told it was false.

Over half (56 percent) of Democratic subjects disapproved of Roberts before the misinformation. That rose to 80 percent afterward, but even after correcting the misinformation, 72 percent of Democratic subjects still had a negative opinion. Republican volunteers, on the other hand, only showed a small increase in disapproval after watching the misinformation (11 percent vs 14 percent).

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Interesting psychological disorders

From Lauren Davis’ “Delusion or Alien Invasion? Disorders That Make Life Seem Like Scifi” (io9: 27 September 2008):

Capgras Delusion: You believe a loved one has been replaced with an exact duplicate.

Reduplicative Paramnesia: You believe that a place or location has been moved to another site, or has been duplicated and exists in two places simultaneously.

Alien Hand Syndrome:Your hand seems to have a will of its own.

Alice in Wonderland Syndrome: You perceive objects as much larger or smaller than they actually are.

Fregoli Syndrome: You believe that multiple people in your life are actually a single person in disguise.

Jumping Frenchman of Maine Disorder: You obey any order shouted at you in a commanding voice.

Delusional Parasitosis: You believe that you are infested with parasites.

Cotard Delusion: You believe you have died and that your body is rotting and/or your soul is gone.

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After a stroke, he can write, but can’t read

From Oliver Sacks’ “The Case of Anna H.” (The New Yorker: 7 October 2002: 64):

I recently received a letter from Howard Engel, a Canadian novelist, who told me that he had a somewhat similar problem following a stroke: “The area affected,” he relates, “was my ability to read. I can write, but I can’t read what I’ve just written … So, I can write, but I can’t rewrite …”

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Language shapes thought

From Celeste Biever’s “Language may shape human thought” (New Scientist: 19 August 2004):

Language may shape human thought – suggests a counting study in a Brazilian tribe whose language does not define numbers above two.

Hunter-gatherers from the Pirahã tribe, whose language only contains words for the numbers one and two, were unable to reliably tell the difference between four objects placed in a row and five in the same configuration, revealed the study. 

For one, two and three objects, members of the tribe consistently matched Gordon’s pile correctly. But for four and five and up to ten, they could only match it approximately, deviating more from the correct number as the row got longer.

The Pirahã also failed to remember whether a box they had been shown seconds ago had four or five fish drawn on the top. When Gordon’s colleagues tapped on the floor three times, the Pirahã were able to imitate this precisely, but failed to mimic strings of four or five taps.

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What in our brains invest memories with emotion?

From Steven Pinker’s “What the F***?” (The New Republic: 9 Octobert 2007):

The mammalian brain contains, among other things, the limbic system, an ancient network that regulates motivation and emotion, and the neocortex, the crinkled surface of the brain that ballooned in human evolution and which is the seat of perception, knowledge, reason, and planning. The two systems are interconnected and work together, but it seems likely that words’ denotations are concentrated in the neocortex, especially in the left hemisphere, whereas their connotations are spread across connections between the neocortex and the limbic system, especially in the right hemisphere.

A likely suspect within the limbic system is the amygdala, an almond-shaped organ buried at the front of the temporal lobe of the brain (one on each side) that helps invest memories with emotion. A monkey whose amygdalas have been removed can learn to recognize a new shape, like a striped triangle, but has trouble learning that the shape foreshadows an unpleasant event like an electric shock. In humans, the amygdala “lights up”–it shows greater metabolic activity in brain scans–when the person sees an angry face or an unpleasant word, especially a taboo word.

What in our brains invest memories with emotion? Read More »

How to exercise your brain

From Robyn Williams’s “How to Keep Your Brain Young” (The Science Show: 24 September 2005):

Ian Robertson: Seven steps for keeping your brain functioning optimally when you’re older, but not just when you’re older but throughout life are: One, Aerobic fitness – amazing effects on the brain. Mental stimulation, both general mental stimulation and there are also specific memory and other training exercises you can do. The third one is new learning, learning new skills and new facts. The fourth one is reducing stress; severe stress has poor effects on the brain. The fifth one is diet; a diet that’s high in antioxidants and fresh fruit and vegetables and also fish and low in saturated fats has quite extraordinary effects on the brain. The sixth one is social interaction and a rich social environment. This is correlated with enhanced cognitive function. And finally, think young. Thoughts about age, which may not be justified, can actually influence your behaviour, and by influencing your behaviour perhaps to behave in an old way can thereby have deleterious effects on your brain. …

But that’s what education is all about; it’s about trying to train people to think, trying to train them to use their brain capacity. The trouble is we tend to stop being educated when we’re about in the early 20s, and that may be part of the reason why we see more of a drop off of mental capacity as we get older than we need see. If you keep training your brain – it’s a bit like a vintage car: a vintage car can go as fast as a new car but needs more maintenance. Well that’s true of the vintage brain as well when you’re over 60 or over 50 even.

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5 reasons people exaggerate risks

From Bruce Schneier’s “Movie Plot Threat Contest: Status Report” (Crypto-Gram Newsletter: 15 May 2006):

In my book, Beyond Fear, I discussed five different tendencies people have to exaggerate risks: to believe that something is more risky than it actually is.

1. People exaggerate spectacular but rare risks and downplay common risks.

2. People have trouble estimating risks for anything not exactly like their normal situation.

3. Personified risks are perceived to be greater than anonymous risks.

4. People underestimate risks they willingly take and overestimate risks in situations they can’t control.

5. People overestimate risks that are being talked about and remain an object of public scrutiny.

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Why airport security fails constantly

From Bruce Schneier’s “Airport Passenger Screening” (Crypto-Gram Newsletter: 15 April 2006):

It seems like every time someone tests airport security, airport security fails. In tests between November 2001 and February 2002, screeners missed 70 percent of knives, 30 percent of guns, and 60 percent of (fake) bombs. And recently, testers were able to smuggle bomb-making parts through airport security in 21 of 21 attempts. …

The failure to detect bomb-making parts is easier to understand. Break up something into small enough parts, and it’s going to slip past the screeners pretty easily. The explosive material won’t show up on the metal detector, and the associated electronics can look benign when disassembled. This isn’t even a new problem. It’s widely believed that the Chechen women who blew up the two Russian planes in August 2004 probably smuggled their bombs aboard the planes in pieces. …

Airport screeners have a difficult job, primarily because the human brain isn’t naturally adapted to the task. We’re wired for visual pattern matching, and are great at picking out something we know to look for — for example, a lion in a sea of tall grass.

But we’re much less adept at detecting random exceptions in uniform data. Faced with an endless stream of identical objects, the brain quickly concludes that everything is identical and there’s no point in paying attention. By the time the exception comes around, the brain simply doesn’t notice it. This psychological phenomenon isn’t just a problem in airport screening: It’s been identified in inspections of all kinds, and is why casinos move their dealers around so often. The tasks are simply mind-numbing.

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The history of solitary confinement

From Daniel Brook’s “A History of Hard Time” (Legal Affairs: January/February 2003):

Dickens wasn’t the first European intellectual who had crossed the Atlantic to visit Eastern State Penitentiary. A decade earlier, Alexis de Tocqueville had been sent by the French government to study the Philadelphia prison. …

What drew the attention of Americans and Europeans was an innovative method of punishment being pioneered at the prison called solitary confinement. While the practice had roots in medieval monasteries, where it was used to punish disobedient monks, solitary confinement came to prominence as a form of criminal punishment in the United States soon after the Revolution. …

In colonial America, capital punishment had been common, and not just for murder – burglary and sodomy could earn an offender the death penalty as well. For less serious offenses, criminals were generally subjected to physical punishments meted out on the public square. In a frontier nation of small towns, public embarrassment was seen as the key to deterring crime. Physical punishment, whether in the form of the stockade or the whipping post, was combined with the psychological punishment of being shamed in front of the community. Jails existed, but they were used mainly to hold criminals before trial and punishment. There were no cells and few rules: Men and women were housed together, and alcohol was often available. …

In 1787, at a soiree held in Benjamin Franklin’s living room, [Dr. Benjamin Rush of Philadelphia, a signatory of the Declaration of Independence & widely regarded as America’s foremost physician] presented an essay titled, “An Enquiry Into the Effects of Public Punishments Upon Criminals, and Upon Society.” Rush declared that “crimes should be punished in private, or not punished at all.” He claimed that public punishment failed to rehabilitate the criminal and risked letting the convict become an object of community sympathy. In lieu of public, physical punishments, Rush endorsed the creation of a “house of repentance.” Grounded in the Quaker principle that each individual is blessed with “Inner Light,” Rush envisioned a place of anonymity, solitude, and silence, where prisoners could dwell on their crimes, repent, and return rehabilitated into society. …

In 1821, the reformers finally convinced the Pennsylvania legislature to approve funding for Eastern State Penitentiary, which would be the largest public building in the country; with a price tag of nearly $800,000, it was likely the most costly one as well. No expense was spared: To prevent disease, each cell in the new prison was equipped with a toilet, a rare luxury at the time. When the penitentiary opened in 1829, President Andrew Jackson was still using an outhouse on the White House lawn.

The principles of the penitentiary system – silence, solitude, surveillance, and anonymity – were incorporated into the architectural plan. Eastern State was designed by John Haviland, a young architect, who proposed a hub-and-spokes model that allowed for constant surveillance. Inmates were housed in 8-by-12-foot cells arranged along a series of cellblocks radiating out from a central observation tower.

Each prisoner remained in his cell at all times, save for a brief daily exercise period held in an individual pen adjoining each cell. Prisoners ate their meals in their cells and did small-scale prison labor there like shoemaking. On the rare occasions when prisoners were allowed to leave their cells, they were prevented from interacting with other prisoners by hoods they were forced to wear to protect their anonymity. They were also forced to use numbers instead of names for the same reason. Silence was maintained at all times in the prison, and reading the Bible was the only activity other than labor that was permitted. Reformers believed that cutting inmates off from the world would foster meditation that would lead to rehabilitation, so visits from family or friends were prohibited. On average, inmates spent two to four years alone in their cells, underneath a single round skylight, known in the prison as the “eye of God.”

The expense of the building limited its influence in the United States, but Eastern State was widely copied in Europe and even in Latin America and Japan, where economic conditions made the model more attractive. Over 300 prisons were built on Eastern States’ hub-and-spokes model, in cities as diverse as London, Paris, Milan, St. Petersburg, and Beijing. Architectural historians consider the hub-and-spokes penitentiary to be the only American building type to have had global influence until the first skyscrapers began to rise in Chicago and New York in the 1880s. …

Dickens, who also interviewed prisoners at Eastern State, was far more skeptical. In his travelogue, American Notes, he described Philadelphia’s system of “rigid, strict, and hopeless solitary confinement” as “cruel and wrong.” …

Dickens didn’t accept that the penitentiary represented human progress over the days of floggings on the public square, or as his prose suggested, even the medieval torture chamber. “I hold this slow and daily tampering with the mysteries of the brain to be immeasurably worse than any torture of the body.” …

In New York, at the Auburn prison near Syracuse and later at Sing Sing in Westchester County, a modified system of solitary confinement was being put into practice. While inmates spent their nights in solitary cells, they worked together silently in a common area during the day. This allowed wardens to set up profitable prison industries that could offset the costs of prison construction. …

Despite this vehement defense of the solitary system, in the period after the Civil War, the regimen at Eastern State was slowly abandoned. … Without enough funding to keep the system running, inmates were frequently doubled up in cells. In 1913, the solitary system was officially abandoned. Solitary confinement became a short-term punishment for misbehaving prisoners rather than the prison’s standard operating procedure. …

More than half of all U.S. prisons in use today were built in the past 25 years, to house a prison population that has risen almost 500 percent over roughly the same period. The United States has the highest incarceration rate in the world. In raw numbers, it has more prisoners than China, a country with over four times as many people. …

Supermax prisons – high-tech, maximum-security facilities – were the answer politicians and corrections departments were looking for to solve the problem of increasing violence in prisons. Following Marion’s lead, corrections departments around the country began building supermax prisons, or adding supermax wings to their existing prisons to handle the growing number of violent prisoners who could not be controlled in the traditional prison system. Today there are 20,000 supermax inmates in the United States, roughly 2 percent of the total prison population, though in some states the proportion is much higher: In Mississippi, 12 percent of prisoners live in supermax units.

The system of punishment in supermax units resembles nothing so much as the system of punishment pioneered at Eastern State. The Pelican Bay Security Housing Unit, which cost California taxpayers a quarter of a billion dollars, is perhaps the most notorious supermax. From the air it looks like a high-tech version of the Philadelphia prison: Its hub-and-spokes design is clearly descended from John Haviland’s 19th-century architectural plan. Inmates in the SHU (known as “the shoe”) are kept in their cells close to 24 hours a day. As at Eastern State, inmates eat in their cells and exercise in isolated attached yards. …

Dr. Stuart Grassian, a Harvard Medical School psychiatrist who was given access to SHU inmates to prepare for providing expert testimony in lawsuits against the California Department of Corrections, has concluded that the regimen in security housing units drives prisoners insane, and he estimates that one-third of all SHU inmates are psychotic. He writes of what he calls “the SHU syndrome,” the symptoms of which include self-mutilation and throwing excrement.

Dr. Terry Kupers, a psychiatrist who has interviewed supermax inmates, writes that a majority of inmates “talk about their inability to concentrate, their heightened anxiety, their intermittent disorientation and confusion, their experience of unreality, and their tendency to strike out at the nearest person when they reach their ‘breaking point.’ ” Even those inmates who don’t become psychotic experience many of these symptoms. Those least likely to become mentally ill in solitary confinement are prisoners who can read, because reading prevents the boredom that can lead to insanity. (The human psyche appears not to have changed since the days of Eastern State, when an inmate told Alexis de Tocqueville that reading the Bible was his “greatest consolation.”) Because roughly 40 percent of U.S. prisoners are functionally illiterate, however, reading can provide solace and sanity to only a fraction of those behind bars.

The history of solitary confinement Read More »

Kaspar Hauser

From Damn Interesting’s “Feral Children“:

One of the more mysterious cases is that of Kaspar Hauser, who was discovered in Nuremberg, Germany in 1828. He was unsteady on his feet, held a letter for a man he had never met, and only spoke the phrase “I want to be a horseman like my father is.” The letter was addressed to the captain of the 4th squadron of the 6th cavalry regiment:

Honored Captain,

I send you a lad who wishes to serve his king in the Army. He was brought to me on October 7th, 1812. I am but a poor laborer with children of my own to rear. His mother asked me to bring up the boy, and so I thought I would rear him as my own son. Since then, I have never let him go one step outside the house, so no one knows where he was reared. He, himself, does not know the name of the place or where it is.

You may question him, Honoured Captain, but he will not be able to tell you where I live. I brought him out at night. He cannot find his way back. He has not a penny, for I have nothing myself. If you do not keep him, you must strike him dead or hang him.

Kaspar was about sixteen years old, but he behaved like a small child. At first, when a mirror was handed to him he would look behind it trying to find the person behind the mirror, and he burned his hand while touching a candle’s flame in curiosity. Kaspar had excellent night vision and a keen sense of smell. He detested meat and alcohol, and was offended by the smell of flowers. Unlike many of the other cases described here, Kaspar did learn much over time, eventually learning to speak enough to describe the small cage in which he had been raised, and the mysterious keeper who finally released him outside of town. But about five years after appearing from nowhere, Kaspar was assassinated. The reason for his murder might be because some believed he was the missing heir to the throne of Baden. His assassin lured him away under the pretense that they would reveal who his parents were, and stabbed him fatally in the chest. The mystery of his early life and violent death has never been satisfactorily answered.

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Flow defined

From Mihaly Csiksczentmihalyi’s “Flow: The Psychology Of Optimal Experience“:

Pleasure by itself does not bring happiness. We can experience pleasure (e.g. eating, sleeping, sex) without an investment of psychic energy. Enjoyment on the other hand, happens only as a result of an unusual amount of attention. Pleasure is fleeting and, unlike enjoyment, does not bring complexity (growth) to the self. If one only invests energy in new directions solely for extrinsic rewards, one may end up no longer enjoying life, and pleasures become the only source of positive experience. Without enjoyment life can be endured and can even be pleasant. But it can be so only precariously, depending on luck and the cooperation of the external environment.

Eight Components of Enjoyment

1. Confronting tasks that we have a chance of completing.
2. Concentration.
3. Concentration is possible because the task has clear goals.
4. Task provides immediate feedback.
5. A deep, effortless involvement removes from awareness the worries and frustrations of everyday life.
6. Enjoyable experiences allow one to exercise a sense of control over one’s actions.
7. Concern for self disappears, yet paradoxically the sense of self emerges stronger after the flow experience is over.
8. Sense of time is altered – hours pass by in minutes.

When experience is intrinsically rewarding, one’s life is justified in the present, instead of one being held hostage to a hypothetical future, but we must constantly re-evaluate what we do, lest habits and past ‘wisdom’ blind us to new possibilities. The flow experience – like anything else – is not “good” in an absolute sense, but only in that it has the potential to make life richer, more intense and meaningful. One must distinguish between useful and harmful forms of flow, making the most of the former and limiting the latter.

Commencement of learning something is a flow situation – everything is new and flow absorption is present as one struggles to master the skill. As one progresses, either boredom will ensue because there is no more challenge (the skill has been learned at that level) or anxiety occurs because a bigger challenge than we can cope with presents itself. Either way, one wants to get back to flow, either by overcoming the anxiety challenge by becoming more skilled, or taking on a challenge that will overcome the boredom, thus getting back into flow at a more complex level.

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Why are some people really good at some things?

From Stephen J. Dubner & Steven D. Levitt’s “A Star Is Made” (The New York Times):

Anders Ericsson, a 58-year-old psychology professor at Florida State University, … is the ringleader of what might be called the Expert Performance Movement, a loose coalition of scholars trying to answer an important and seemingly primordial question: When someone is very good at a given thing, what is it that actually makes him good? …

In other words, whatever innate differences two people may exhibit in their abilities to memorize, those differences are swamped by how well each person “encodes” the information. And the best way to learn how to encode information meaningfully, Ericsson determined, was a process known as deliberate practice.

Deliberate practice entails more than simply repeating a task – playing a C-minor scale 100 times, for instance, or hitting tennis serves until your shoulder pops out of its socket. Rather, it involves setting specific goals, obtaining immediate feedback and concentrating as much on technique as on outcome. …

Their work, compiled in the “Cambridge Handbook of Expertise and Expert Performance,” a 900-page academic book that will be published next month, makes a rather startling assertion: the trait we commonly call talent is highly overrated. Or, put another way, expert performers – whether in memory or surgery, ballet or computer programming – are nearly always made, not born. And yes, practice does make perfect. …

Ericsson’s research suggests a third cliché as well: when it comes to choosing a life path, you should do what you love – because if you don’t love it, you are unlikely to work hard enough to get very good. Most people naturally don’t like to do things they aren’t “good” at. So they often give up, telling themselves they simply don’t possess the talent for math or skiing or the violin. But what they really lack is the desire to be good and to undertake the deliberate practice that would make them better. …

Ericsson has noted that most doctors actually perform worse the longer they are out of medical school. Surgeons, however, are an exception. That’s because they are constantly exposed to two key elements of deliberate practice: immediate feedback and specific goal-setting.

Why are some people really good at some things? Read More »

Word of the day: pareidolia

Pareidolia (from Greek para– amiss, faulty, wrong + eidolon, diminutive of eidos appearance, form) is a psychological phenomenon involving a vague and random stimulus (usually an image) being mistakenly perceived as recognizable. Common examples include images of animals or faces in clouds, seeing the man in the moon, and hearing messages on records played in reverse.

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Funes the Memorious, for real

From “New form of superior memory syndrome found“:

Scientists at the University of California-Irvine have identified the first known case of a new, superior memory syndrome.

Researchers Elizabeth Parker, Larry Cahill and James McGaugh spent more than five years studying the case of “AJ,” a 40-year-old woman with incredibly strong memories of her personal past.

Given a date, AJ can recall with astonishing accuracy what she was doing on that date and what day of the week it was. Because her case is the first of its kind, the researchers have proposed a name for her syndrome — hyperthymestic syndrome — based on the Greek word thymesis for “remembering” and hyper, meaning “more than normal.” …

“What makes this young woman so remarkable is that she uses no mnemonic devices to help her remember things,” said McGaugh.

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How to really practice to get better

From “How to be an expert“:

Maybe the “naaturally talented artist” was simply the one who practiced a hell of a lot more. Or rather, a hell of a lot more deliberately. Dr. K. Anders Ericsson, professor of psychology at Florida State University, has spent most of his 20+ year career on the study of genuises, prodigies, and superior performers. In the book The New Brain (it was on my coffee table) Richard Restak quotes Ericsson as concluding:

“For the superior performer the goal isn’t just repeating the same thing again and again but achieving higher levels of control over every aspect of their performance. That’s why they don’t find practice boring. Each practice session they are working on doing something better than they did the last time.”

So it’s not just how long they practice, it’s how they practice. Basically, it comes down to something like this:

Most of us want to practice the things we’re already good at, and avoid the things we suck at. We stay average or intermediate amateurs forever.

Yet the research says that if we were willing to put in more hours, and to use those hours to practice the things that aren’t so fun, we could become good. Great. Potentially brilliant. We need, as Restak refers to it, “a rage to master.” That dedication to mastery drives the potential expert to focus on the most subtle aspects of performance, and to never be satisfied. There is always more to improve on, and they’re willing to work on the less fun stuff.

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3500 forgotten cans

From “Mental Health Association of Portland“:

Over 3,500 copper canisters like these hold the cremated remains of patients of the Oregon State Hospital that went unclaimed by their families and friends. They sit on shelves in an abandoned building on the grounds of the Oregon State Hospital. They symbolize the loneliness, isolation, shame and despair too many patients of the hospital experienced.

Our members are helping find a final resting place for the remains. We have helped families find their lost relatives. We’re pressing the hospital and the state to create a suitable memorial. We’ve demanded former, current and future patients be advised and consulted about the creation of a memorial, its site, design and any ceremony.

oregon_cans.jpg

From The New York Times‘ “Long-Forgotten Reminders Of the Mentally Ill in Oregon”:

Next to the old mortuary, where the dead were once washed and prepared for burial or cremation, is a locked room without a name.

Inside the room, in a dim and dusty corner of one of many abandoned buildings on the decaying campus of the Oregon State Hospital here, are 3,489 copper urns, the shiny metal dull and smeared with corrosion, the canisters turning green.

The urns hold the ashes of mental patients who died here from the late 1880’s to the mid-1970’s. The remains were unclaimed by families who had long abandoned their sick relatives, when they were alive and after they were dead.

The urns have engraved serial numbers pressed into the tops of the cans. The lowest number on the urns still stored in the room is 01, the highest 5,118. Over the decades, about 1,600 families have reclaimed urns containing their relatives’ ashes, but those left are lined up meticulously on wood shelves. Short strips of masking tape with storage information are affixed to each shelf: ”Vault #2, Shelf #36, plus four unmarked urns,” one piece of tattered tape says.

Most of the labels that once displayed the full names of the dead patients have been washed off by water damage or peeled away by time. Still, a few frayed labels are legible: among the urns stored on one shelf are a Bess, a Ben and an Andrew.

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Pi to unfathomable places

From “Man recites pi from memory to 83,431 places“:

A Japanese psychiatric counselor has recited pi to 83,431 decimal places from memory, breaking his own personal best of 54,000 digits and setting an unofficial world record, a media report said Saturday.

Akira Haraguchi, 59, had begun his attempt to recall the value of pi – a mathematical value that has an infinite number of decimal places – at a public hall in Chiba city, east of Tokyo, on Friday morning and appeared to give up by noon after only reaching 16,000 decimal places, the Tokyo Shimbun said on its Web site.

But a determined Haraguchi started anew and had broken his old record on Friday evening, about 11 hours after first sitting down to his task, the paper said. …

Pi, usually given as an abbreviated 3.14, is the ratio of the circumference to the diameter of a circle. The number has fascinated and confounded mathematicians for centuries.

Aided by a supercomputer, a University of Tokyo mathematician set the world record for figuring out pi to 1.24 trillion decimal places in 2002.

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