Wednesday, May 7, 2014

Forgetting keeps us sane



SALON



Forgetting keeps us sane

New research helps explain how the brain protects us from memory-related disorders





When it comes to maintaining sanity, forgetting is at least as important as remembering. Without it, the constant stream of stimuli–faces on the street, words read, items glanced at–would quickly overwhelm the mind. But the neural basis underlying the act of forgetting isn't well understood. A new study found that in roundworms, a protein called musashi is actively involved in forgetting. Just in time for the 10th anniversary of Eternal Sunshine of the Spotless Mind.
In the study, published in the journal Cellscientists found that roundworms that were genetically modified to lack the musashi protein did much better on a smell-based learning task, actively retaining memories 24 hours later that unmodified mice did not. This is one of the first studies to show that forgetting can be an active (as opposed to passive) process, the authors wrote.

Further analysis found that the protein impedes the production of molecules that stabilize synapses, which are connections between neurons involved in forming and holding onto memories. The study also showed that another protein called adducin stimulates the growth of synapses, helping to retain memory. The balance between these competing processes determines which memories are held onto. “An imbalance in any of these mechanisms may result in altered memory function that could play a role in memory-related disorders” in humans, the study concluded. While it’s too early to make the leap to humans, these proteins could be important targets for research into pharmaceuticals to treat Alzheimer’s disease and the like.

Monday, March 24, 2014

What Are You So Scared of? Saber-Toothed Cats, Snakes, and Carnivorous Kangaroos.


SLATE





What Are You So Scared of? Saber-Toothed Cats, Snakes, and Carnivorous Kangaroos.

The evolutionary legacy of having been prey.

Wednesday, November 20, 2013

Don’t Blink! The Hazards of Confidence and the Illusion of Validity



Magazine



Don’t Blink! The Hazards of Confidence

 


Tim Enthoven

It afflicts us all. Because confidence in our own judgments is part of being human.

Many decades ago I spent what seemed like a great deal of time under a scorching sun, watching groups of sweaty soldiers as they solved a problem. I was doing my national service in the Israeli Army at the time. I had completed an undergraduate degree in psychology, and after a year as an infantry officer, I was assigned to the army’s Psychology Branch, where one of my occasional duties was to help evaluate candidates for officer training. We used methods that were developed by the British Army in World War II.

One test, called the leaderless group challenge, was conducted on an obstacle field. Eight candidates, strangers to one another, with all insignia of rank removed and only numbered tags to identify them, were instructed to lift a long log from the ground and haul it to a wall about six feet high. There, they were told that the entire group had to get to the other side of the wall without the log touching either the ground or the wall, and without anyone touching the wall. If any of these things happened, they were to acknowledge it and start again. 

A common solution was for several men to reach the other side by crawling along the log as the other men held it up at an angle, like a giant fishing rod. Then one man would climb onto another’s shoulder and tip the log to the far side. The last two men would then have to jump up at the log, now suspended from the other side by those who had made it over, shinny their way along its length and then leap down safely once they crossed the wall. Failure was common at this point, which required starting over. 

As a colleague and I monitored the exercise, we made note of who took charge, who tried to lead but was rebuffed, how much each soldier contributed to the group effort. We saw who seemed to be stubborn, submissive, arrogant, patient, hot-tempered, persistent or a quitter. We sometimes saw competitive spite when someone whose idea had been rejected by the group no longer worked very hard. And we saw reactions to crisis: who berated a comrade whose mistake caused the whole group to fail, who stepped forward to lead when the exhausted team had to start over. Under the stress of the event, we felt, each man’s true nature revealed itself in sharp relief. 

After watching the candidates go through several such tests, we had to summarize our impressions of the soldiers’ leadership abilities with a grade and determine who would be eligible for officer training. We spent some time discussing each case and reviewing our impressions. The task was not difficult, because we had already seen each of these soldiers’ leadership skills. Some of the men looked like strong leaders, others seemed like wimps or arrogant fools, others mediocre but not hopeless. Quite a few appeared to be so weak that we ruled them out as officer candidates. When our multiple observations of each candidate converged on a coherent picture, we were completely confident in our evaluations and believed that what we saw pointed directly to the future. The soldier who took over when the group was in trouble and led the team over the wall was a leader at that moment. The obvious best guess about how he would do in training, or in combat, was that he would be as effective as he had been at the wall. Any other prediction seemed inconsistent with what we saw. 

Because our impressions of how well each soldier performed were generally coherent and clear, our formal predictions were just as definite. We rarely experienced doubt or conflicting impressions. We were quite willing to declare: “This one will never make it,” “That fellow is rather mediocre, but should do O.K.” or “He will be a star.” We felt no need to question our forecasts, moderate them or equivocate. If challenged, however, we were fully prepared to admit, “But of course anything could happen.” 

We were willing to make that admission because, as it turned out, despite our certainty about the potential of individual candidates, our forecasts were largely useless. The evidence was overwhelming. Every few months we had a feedback session in which we could compare our evaluations of future cadets with the judgments of their commanders at the officer-training school. The story was always the same: our ability to predict performance at the school was negligible. Our forecasts were better than blind guesses, but not by much. 

We were downcast for a while after receiving the discouraging news. But this was the army. Useful or not, there was a routine to be followed, and there were orders to be obeyed. Another batch of candidates would arrive the next day. We took them to the obstacle field, we faced them with the wall, they lifted the log and within a few minutes we saw their true natures revealed, as clearly as ever. The dismal truth about the quality of our predictions had no effect whatsoever on how we evaluated new candidates and very little effect on the confidence we had in our judgments and predictions. 

I thought that what was happening to us was remarkable. The statistical evidence of our failure should have shaken our confidence in our judgments of particular candidates, but it did not. It should also have caused us to moderate our predictions, but it did not. We knew as a general fact that our predictions were little better than random guesses, but we continued to feel and act as if each particular prediction was valid. I was reminded of visual illusions, which remain compelling even when you know that what you see is false. I was so struck by the analogy that I coined a term for our experience: the illusion of validity.
I had discovered my first cognitive fallacy. 

Decades later, I can see many of the central themes of my thinking about judgment in that old experience. One of these themes is that people who face a difficult question often answer an easier one instead, without realizing it. We were required to predict a soldier’s performance in officer training and in combat, but we did so by evaluating his behavior over one hour in an artificial situation. This was a perfect instance of a general rule that I call WYSIATI, “What you see is all there is.” We had made up a story from the little we knew but had no way to allow for what we did not know about the individual’s future, which was almost everything that would actually matter. When you know as little as we did, you should not make extreme predictions like “He will be a star.” The stars we saw on the obstacle field were most likely accidental flickers, in which a coincidence of random events — like who was near the wall — largely determined who became a leader. Other events — some of them also random — would determine later success in training and combat. 

You may be surprised by our failure: it is natural to expect the same leadership ability to manifest itself in various situations. But the exaggerated expectation of consistency is a common error. We are prone to think that the world is more regular and predictable than it really is, because our memory automatically and continuously maintains a story about what is going on, and because the rules of memory tend to make that story as coherent as possible and to suppress alternatives. Fast thinking is not prone to doubt. 

The confidence we experience as we make a judgment is not a reasoned evaluation of the probability that it is right. Confidence is a feeling, one determined mostly by the coherence of the story and by the ease with which it comes to mind, even when the evidence for the story is sparse and unreliable. The bias toward coherence favors overconfidence. An individual who expresses high confidence probably has a good story, which may or may not be true. 

I coined the term “illusion of validity” because the confidence we had in judgments about individual soldiers was not affected by a statistical fact we knew to be true — that our predictions were unrelated to the truth. This is not an isolated observation. When a compelling impression of a particular event clashes with general knowledge, the impression commonly prevails. And this goes for you, too. The confidence you will experience in your future judgments will not be diminished by what you just read, even if you believe every word. 

I first visited a Wall Street firm in 1984. I was there with my longtime collaborator Amos Tversky, who died in 1996, and our friend Richard Thaler, now a guru of behavioral economics. Our host, a senior investment manager, had invited us to discuss the role of judgment biases in investing. I knew so little about finance at the time that I had no idea what to ask him, but I remember one exchange. “When you sell a stock,” I asked him, “who buys it?” He answered with a wave in the vague direction of the window, indicating that he expected the buyer to be someone else very much like him. That was odd: because most buyers and sellers know that they have the same information as one another, what made one person buy and the other sell? Buyers think the price is too low and likely to rise; sellers think the price is high and likely to drop. The puzzle is why buyers and sellers alike think that the current price is wrong. 

Most people in the investment business have read Burton Malkiel’s wonderful book “A Random Walk Down Wall Street.” Malkiel’s central idea is that a stock’s price incorporates all the available knowledge about the value of the company and the best predictions about the future of the stock. If some people believe that the price of a stock will be higher tomorrow, they will buy more of it today. This, in turn, will cause its price to rise. If all assets in a market are correctly priced, no one can expect either to gain or to lose by trading. 

We now know, however, that the theory is not quite right. Many individual investors lose consistently by trading, an achievement that a dart-throwing chimp could not match. The first demonstration of this startling conclusion was put forward by Terry Odean, a former student of mine who is now a finance professor at the University of California, Berkeley. 

Odean analyzed the trading records of 10,000 brokerage accounts of individual investors over a seven-year period, allowing him to identify all instances in which an investor sold one stock and soon afterward bought another stock. By these actions the investor revealed that he (most of the investors were men) had a definite idea about the future of two stocks: he expected the stock that he bought to do better than the one he sold. 

To determine whether those appraisals were well founded, Odean compared the returns of the two stocks over the following year. The results were unequivocally bad. On average, the shares investors sold did better than those they bought, by a very substantial margin: 3.3 percentage points per year, in addition to the significant costs of executing the trades. Some individuals did much better, others did much worse, but the large majority of individual investors would have done better by taking a nap rather than by acting on their ideas. In a paper titled “Trading Is Hazardous to Your Wealth,” Odean and his colleague Brad Barber showed that, on average, the most active traders had the poorest results, while those who traded the least earned the highest returns. In another paper, “Boys Will Be Boys,” they reported that men act on their useless ideas significantly more often than women do, and that as a result women achieve better investment results than men. 

Of course, there is always someone on the other side of a transaction; in general, it’s a financial institution or professional investor, ready to take advantage of the mistakes that individual traders make. Further research by Barber and Odean has shed light on these mistakes. Individual investors like to lock in their gains; they sell “winners,” stocks whose prices have gone up, and they hang on to their losers. Unfortunately for them, in the short run going forward recent winners tend to do better than recent losers, so individuals sell the wrong stocks. They also buy the wrong stocks. Individual investors predictably flock to stocks in companies that are in the news. Professional investors are more selective in responding to news. These findings provide some justification for the label of “smart money” that finance professionals apply to themselves. 

Although professionals are able to extract a considerable amount of wealth from amateurs, few stock pickers, if any, have the skill needed to beat the market consistently, year after year. The diagnostic for the existence of any skill is the consistency of individual differences in achievement. The logic is simple: if individual differences in any one year are due entirely to luck, the ranking of investors and funds will vary erratically and the year-to-year correlation will be zero. Where there is skill, however, the rankings will be more stable. The persistence of individual differences is the measure by which we confirm the existence of skill among golfers, orthodontists or speedy toll collectors on the turnpike. 

Mutual funds are run by highly experienced and hard-working professionals who buy and sell stocks to achieve the best possible results for their clients. Nevertheless, the evidence from more than 50 years of research is conclusive: for a large majority of fund managers, the selection of stocks is more like rolling dice than like playing poker. At least two out of every three mutual funds underperform the overall market in any given year. 

More important, the year-to-year correlation among the outcomes of mutual funds is very small, barely different from zero. The funds that were successful in any given year were mostly lucky; they had a good roll of the dice. There is general agreement among researchers that this is true for nearly all stock pickers, whether they know it or not — and most do not. The subjective experience of traders is that they are making sensible, educated guesses in a situation of great uncertainty. In highly efficient markets, however, educated guesses are not more accurate than blind guesses. 

Some years after my introduction to the world of finance, I had an unusual opportunity to examine the illusion of skill up close. I was invited to speak to a group of investment advisers in a firm that provided financial advice and other services to very wealthy clients. I asked for some data to prepare my presentation and was granted a small treasure: a spreadsheet summarizing the investment outcomes of some 25 anonymous wealth advisers, for eight consecutive years. The advisers’ scores for each year were the main determinant of their year-end bonuses. It was a simple matter to rank the advisers by their performance and to answer a question: Did the same advisers consistently achieve better returns for their clients year after year? Did some advisers consistently display more skill than others? 

To find the answer, I computed the correlations between the rankings of advisers in different years, comparing Year 1 with Year 2, Year 1 with Year 3 and so on up through Year 7 with Year 8. That yielded 28 correlations, one for each pair of years. While I was prepared to find little year-to-year consistency, I was still surprised to find that the average of the 28 correlations was .01. In other words, zero. The stability that would indicate differences in skill was not to be found. The results resembled what you would expect from a dice-rolling contest, not a game of skill. 

No one in the firm seemed to be aware of the nature of the game that its stock pickers were playing. The advisers themselves felt they were competent professionals performing a task that was difficult but not impossible, and their superiors agreed. On the evening before the seminar, Richard Thaler and I had dinner with some of the top executives of the firm, the people who decide on the size of bonuses. We asked them to guess the year-to-year correlation in the rankings of individual advisers. They thought they knew what was coming and smiled as they said, “not very high” or “performance certainly fluctuates.” It quickly became clear, however, that no one expected the average correlation to be zero. 

What we told the directors of the firm was that, at least when it came to building portfolios, the firm was rewarding luck as if it were skill. This should have been shocking news to them, but it was not. There was no sign that they disbelieved us. How could they? After all, we had analyzed their own results, and they were certainly sophisticated enough to appreciate their implications, which we politely refrained from spelling out. We all went on calmly with our dinner, and I am quite sure that both our findings and their implications were quickly swept under the rug and that life in the firm went on just as before. The illusion of skill is not only an individual aberration; it is deeply ingrained in the culture of the industry. Facts that challenge such basic assumptions — and thereby threaten people’s livelihood and self-esteem — are simply not absorbed. The mind does not digest them. This is particularly true of statistical studies of performance, which provide general facts that people will ignore if they conflict with their personal experience. 

The next morning, we reported the findings to the advisers, and their response was equally bland. Their personal experience of exercising careful professional judgment on complex problems was far more compelling to them than an obscure statistical result. When we were done, one executive I dined with the previous evening drove me to the airport. He told me, with a trace of defensiveness, “I have done very well for the firm, and no one can take that away from me.” I smiled and said nothing. But I thought, privately: Well, I took it away from you this morning. If your success was due mostly to chance, how much credit are you entitled to take for it? 

We often interact with professionals who exercise their judgment with evident confidence, sometimes priding themselves on the power of their intuition. In a world rife with illusions of validity and skill, can we trust them? How do we distinguish the justified confidence of experts from the sincere overconfidence of professionals who do not know they are out of their depth? We can believe an expert who admits uncertainty but cannot take expressions of high confidence at face value. As I first learned on the obstacle field, people come up with coherent stories and confident predictions even when they know little or nothing. Overconfidence arises because people are often blind to their own blindness. 

True intuitive expertise is learned from prolonged experience with good feedback on mistakes. You are probably an expert in guessing your spouse’s mood from one word on the telephone; chess players find a strong move in a single glance at a complex position; and true legends of instant diagnoses are common among physicians. To know whether you can trust a particular intuitive judgment, there are two questions you should ask: Is the environment in which the judgment is made sufficiently regular to enable predictions from the available evidence? 

The answer is yes for diagnosticians, no for stock pickers. Do the professionals have an adequate opportunity to learn the cues and the regularities? The answer here depends on the professionals’ experience and on the quality and speed with which they discover their mistakes. Anesthesiologists have a better chance to develop intuitions than radiologists do. Many of the professionals we encounter easily pass both tests, and their off-the-cuff judgments deserve to be taken seriously. In general, however, you should not take assertive and confident people at their own evaluation unless you have independent reason to believe that they know what they are talking about. Unfortunately, this advice is difficult to follow: overconfident professionals sincerely believe they have expertise, act as experts and look like experts. You will have to struggle to remind yourself that they may be in the grip of an illusion. 


Daniel Kahneman is emeritus professor of psychology and of public affairs at Princeton University and a winner of the 2002 Nobel Prize in Economics. This article is adapted from his book “Thinking, Fast and Slow,” out this month from Farrar, Straus & Giroux.

Editor: Dean Robinson

Sunday, November 10, 2013

How Power Corrupts the Mind

The  Atlantic


How Power Corrupts the Mind

Pity the despot. 

Sunday, October 27, 2013

Is There Such a Thing as "Human Nature"?



Is There Such a Thing as "Human Nature"?

 

Ethan Watters unravels the Western Mind.

 
 
REUTERS / JORGE SILVA


In the summer of 1995, a young graduate student in anthropology at UCLA named Joe Henrich traveled to Peru to carry out some fieldwork among the Machiguenga, an indigenous people who live north of Machu Picchu in the Amazon basin. The Machiguenga had traditionally been horticulturalists who lived in single-family, thatch-roofed houses in small hamlets composed of clusters of extended families. For sustenance, they relied on local game and produce from small-scale farming. They shared with their kin but rarely traded with outside groups.

While the setting was fairly typical for an anthropologist, Henrich’s research was not. Rather than practice traditional ethnography, he decided to run a behavioral experiment that had been developed not by psychologists or anthropologists, but by economists. Henrich used a “game”  –   along the lines of the famous prisoner’s dilemma –  to see whether relatively isolated cultures shared with the West the same basic instinct for fairness. In doing so, Henrich expected to confirm one of the foundational assumptions underlying such experiments, and indeed underpinning the entire fields of economics and psychology: that humans all share the same cognitive machinery –  the same evolved rational and psychological hardwiring.

The test that Henrich introduced to the Machiguenga was called the ultimatum game. The rules are simple: in each game there are two players who remain anonymous to each other. The first player is given an amount of money, say $100, and told that he has to offer some of the cash, in an amount of his choosing, to the other subject. The second player can accept or refuse the split. But there’s a hitch: players know that if the recipient refuses the offer, both leave empty-handed. North Americans, who are the most common subjects for such experiments, usually offer a 50-50 split when on the giving end. When on the receiving end, they show an eagerness to punish the other player for uneven splits at their own expense. In short, Americans show the tendency to be equitable with strangers – and to punish those who are not.

Among the Machiguenga, word spread quickly of the young, square-jawed visitor from America giving away money. The stakes Henrich used in the game with the Machiguenga were not insubstantial –  roughly equivalent to a few days’ wages they sometimes earned from episodic work with logging or oil companies. So Henrich had no problem finding volunteers. What he had great difficulty with, however, was explaining the rules, as the game struck the Machiguenga as profoundly odd.

When he began to run the game it became immediately clear that Machiguengan behavior was dramatically different from that of the average North American. To begin with, the offers from the first player were much lower. In addition, when on the receiving end of the game, the Machiguenga rarely refused even the lowest possible amount. “It just seemed ridiculous to the Machiguenga that you would reject an offer of free money,” says Henrich. “They just didn’t understand why anyone would sacrifice money to punish someone who had the good luck of getting to play the other role in the game.”
The implications of these unexpected results were quickly apparent to Henrich. He knew that a vast amount of scholarly literature in the social sciences –  particularly in economics and psychology –  relied on the ultimatum game and similar experiments.

At the heart of most of that research was the implicit assumption that the results revealed evolved psychological traits common to all humans, never mind that the test subjects were nearly always from the industrialized West.
 
Henrich realized that if the Machiguenga results stood out, and if similar differences could be measured across other populations, this assumption of universality would have to be challenged.

Initially, Henrich thought he would be merely adding a small branch to an established tree of knowledge. It turned out he was sawing at the very trunk. He began to wonder: What other certainties about “human nature” in social science research would need to be reconsidered when tested across diverse populations?

With the help of a dozen other colleagues he led a study of 14 other small-scale societies, in locales from Tanzania to Indonesia. Differences abounded in the behavior of both players in the ultimatum game. In no society did he find people who were purely selfish (that is, who always offered the lowest amount, and never refused a split). Average offers varied widely from place to place and, in some societies – ones where gift-giving is heavily used to curry favor or gain allegiance – the first player would often make overly generous offers in excess of 60 percent, and the second player would often reject them, behaviors almost never observed among Americans.

Henrich’s work also made him a controversial figure. When he presented his research to the anthropology department at the University of British Columbia during a job interview a year later, he recalls a hostile reception. Anthropology is the social science most interested in cultural differences, but the young scholar’s methods of using games and statistics to test and compare cultures with the West seemed heavy-handed and invasive to some. “Professors from the anthropology department suggested it was a bad thing that I was doing,” Henrich remembers. “The word ‘unethical’ came up.”

So instead of toeing the line, he switched teams. A few well-placed people at the University of British Columbia saw great promise in Henrich’s work and created a position for him, split between the economics department and the psychology department. It was in the psychology department that he found two kindred spirits in Steven Heine and Ara Norenzayan. Together the three set about writing a paper that they hoped would fundamentally challenge the way social scientists thought about human behavior, cognition, and culture.

A modern liberal arts education gives lots of lip service to the idea of cultural diversity. It’s generally agreed that all of us see the world in ways that are sometimes socially and culturally constructed, that pluralism is good, and that ethnocentrism is bad. But beyond that the ideas get muddy.
 
That we should welcome and celebrate people of all backgrounds seems obvious, but the implied corollary – that people from different ethno-cultural origins have particular attributes that add spice to the body politic – becomes more problematic. Being that liberal arts students tend to be hyper-vigilant in avoiding stereotyping, it is rarely stated bluntly just exactly what those culturally derived qualities might be. Challenge liberal arts graduates on their appreciation of cultural diversity and you’ll often find them retreating to the anodyne notion that under the skin everyone is really alike.

If you take a broad look at social science curricula of the last few decades, it becomes clear why modern graduates are so unmoored. The last generation or two of undergraduates have largely been taught by a cohort of social scientists busily doing penance for the racism and Eurocentrism of their predecessors, albeit in different ways. Many anthropologists took to the navel gazing of postmodernism and swore off attempts at rationality and science, which were disparaged as weapons of cultural imperialism.

Economists and psychologists skirted the issue with the convenient assumption that their job was to study the human mind stripped of culture. The human brain is genetically comparable around the globe, it was agreed, so human hardwiring for much behavior, perception, and cognition should be similarly universal. No need, in that case, to look beyond the convenient population of undergraduates for test subjects. A 2008 survey of the top six psychology journals dramatically shows that more than 96 percent of the subjects tested in psychological studies from 2003 to 2007 were Westerners –  with nearly 70 percent from the United States alone. Put another way: 96 percent of human subjects in these studies came from countries that represent only 12 percent of the world’s population.

Henrich’s work with the ultimatum game emerged from a small but growing counter trend in the social sciences, one in which researchers look straight at the question of how deeply culture shapes human cognition. His new colleagues in the psychology department, Heine and Norenzayan, were also part of this trend. Heine focused on the different ways people in Western and Eastern cultures perceived the world, reasoned, and understood themselves in relationship to others. Norenzayan’s research focused on the ways religious belief influenced bonding and behavior. The three began to compile examples of cross-cultural research that challenged long-held assumptions of human psychological universality.

Some of this research went back a generation. It was in the 1960s that researchers discovered that aspects of visual perception varied from place to place. One of the classics of the literature, the Müller-Lyer illusion, showed that where you grew up determined to what degree you would fall prey to the illusion that these two lines are different in length.

Researchers found that Americans perceive the line with the ends feathered outward (B) as being longer than the line with the arrow tips (A). San foragers of the Kalahari, on the other hand, were more likely to see the lines as they are: equal in length. Subjects from more than a dozen cultures were tested, and Americans were at the far end of the distribution – seeing the illusion more dramatically than all others.

Recently, psychologists began to challenge the universality of research done in the 1950s by pioneering social psychologist Solomon Asch. Asch had discovered that test subjects were often willing to make incorrect judgments on simple perception tests to conform with group pressure. When the test was performed across 17 societies however, it turned out that group pressure had a range of influence. Americans were again at the far end of the scale, showing the least tendency to conform to group belief.

Heine, Norenzayan, and Henrich’s research continued to find wide cultural differences almost everywhere they looked: in spatial reasoning, the way we infer the motivations of others, categorization, moral reasoning, the boundaries between the self and others, and other arenas. These differences, they believed, were not genetic. The distinct ways Americans and Machiguengans played the ultimatum game wasn’t because they had differently evolved brains. Rather, Americans were manifesting a psychological tendency shared with people in other industrialized countries, tendencies that had been refined and passed down through thousands of generations in increasingly complex and competitive market economies.

When people are constantly doing business with strangers, it helps when they have the desire to go out of their way (with a lawsuit or a bad Yelp review) when they feel cheated. Because Machiguengan culture had a different history, their gut feeling about what was fair was distinctly their own. In small-scale societies with a strong culture of gift-giving, yet another conception of fairness prevailed. There, generous financial offers were turned down because people’s minds had been shaped by a cultural norm that taught them that the acceptance of generous gifts brought burdensome obligations. Our economies hadn’t been shaped by our idea of fairness; it was the other way around.

The growing body of cross-cultural research that the three researchers were compiling suggested that the mind’s capacity to mold itself to cultural and environmental settings was far greater than had been assumed. 
 
The most interesting thing about cultures may not be in the observable things they do –  the rituals, eating preferences, codes of behavior, and the like –  but in the way they mold our most fundamental conscious and unconscious thinking and perception. The different ways people perceive the Müller-Lyer illusion reflects lifetimes spent in different physical environments. American children, for the most part, grow up in box-shaped rooms of varying dimensions. Surrounded by carpentered corners, visual perception adapts to this strange new environment (strange and new in terms of human history, that is) by learning to perceive converging lines in three dimensions. When unconsciously translated in three dimensions, the line with the outward-feathered ends (C) appears farther away and the brain therefore judges it to be longer. The more time one spends in natural environments, where there are no carpentered corners, the less one sees the illusion.

But the three researchers began to notice something else remarkable: again and again there was one group of people that appeared to be remarkably unusual when compared to other populations –  with perceptions, behaviors, and motivations that almost always slid down the far end of the human bell curve.

In the end they titled their paper “The Weirdest People in the World?” By “weird” they meant both unusual and Western, Educated, Industrialized, Rich, and Democratic.
It is not just our Western habits and cultural preferences that wholly differ from the rest of the world. The very way we think about ourselves and others – even the way we perceive reality –  makes us radically distinct from other humans on the planet today, not to mention from the vast majority of our ancestors. Among Westerners, the data showed that Americans were typically the most unusual, leading the researchers to conclude that “American participants are exceptional even within the unusual population of Westerners –  outliers among outliers”
Given this discovery, they concluded that social scientists could not possibly have picked a worse population from which to draw broad generalizations about universal human traits. Generations of researchers had been doing the equivalent of studying penguins while believing that they were learning insights applicable to all birds.

Not long ago I met Henrich, Heine, and Norenzayan for dinner at a small French restaurant in Vancouver, British Columbia, to hear about the reception of their “weird” paper, which was published in the prestigious journal Behavioral and Brain Sciences in 2010. The trio of researchers are young – as professors go –  good-humored family men. They recalled their nervousness as the publication time approached. They faced the possibility of becoming outcasts in their own fields as their paper boldly suggested that much of what social scientists thought they knew about fundamental aspects of human cognition was likely only true of one small slice of humanity.
“We were scared,” admitted Henrich. “We were warned that a lot of people were going to be upset.” “We were told we were going to get spit on,” interjected Norenzayan.
“Yes,” Henrich said. “That we’d go to conferences and no one was going to sit next to us at lunchtime.”
They seemed much less concerned that they had used the pejorative acronym WEIRD to describe a significant slice of humanity, although they did admit that they could only have done so to describe their own group. “Really,” said Henrich, “the only people we could have called weird are represented right here at this table.”

Still, I felt that describing the Western mind, and the American mind in particular, as “weird” suggested that our cognition is not just different but somehow malformed or twisted.

In their paper the trio pointed out cross-cultural studies that suggest that the “weird” [Western, Educated, Industrial, Rich, Democratic] mind is the most self-aggrandizing and egotistical on the planet: we are more likely to promote ourselves as individuals versus advancing as a group. 
 
WEIRD minds are also more analytic, possessing the tendency to telescope in on an object of interest rather than understanding that object in the context of what is around it.The WEIRD mind also appears to be unique in terms of how it comes to understand and interact with the natural world. Studies show that Western urban children grow up so closed off in man-made environments that their brains never form a deep or complex connection to the natural world. While studying children from the U.S., researchers have suggested a developmental timeline for what is called “folkbiological reasoning.” These studies posit that it is not until children are around 7 years old that they stop projecting human qualities onto animals and begin to understand that humans are one animal among many. Compared to Yucatec Maya communities in Mexico, Western urban children appear to be developmentally delayed in this regard. Children who grow up constantly interacting with the natural world are much less likely to anthropomorphize other living things into late childhood.
Given that people living in WEIRD societies don’t routinely encounter or interact with animals other than humans or pets, it’s not surprising that they end up with a rather cartoonish understanding of the natural world. “Indeed,” the report concluded, “studying the cognitive development of folkbiology in urban children would seem the equivalent of studying ‘normal’ physical growth in malnourished children.”

During our dinner, I admitted to Heine, Henrich, and Norenzayan that the idea that I can only perceive reality through a distorted cultural lens was unnerving. For me, the notion raised all sorts of metaphysical questions: Is my thinking so strange that I have little hope of understanding people from other cultures? Can I mold my own psyche or the psyches of my children to be less WEIRD and more able to think like the rest of the world? If I did, would I be happier?
Henrich said I was taking this research too personally. He had not intended for his work to be read as postmodern self-help advice.

The three insisted that their goal was not to say that one culturally shaped psychology was better or worse than another –  but that we’ll never begin to understand human behavior and cognition until we expand the sample pool beyond its current small slice of humanity. Despite these assurances, I found it hard not to read a message between the lines of their research. When they write, for example, that WEIRD children develop their understanding of the natural world in a “culturally and experientially impoverished environment” and that they are in this way analogous to “malnourished children,” it’s difficult to see this as a good thing.

The turn that Henrich, Heine, and Norenzayan are urging social scientists to make is not an easy one; accounting for the influence of culture on cognition will be a herculean task. Cultures are not monolithic; they can be endlessly parsed. Ethnic backgrounds, religious beliefs, economic status, parenting styles, rural upbringing versus urban or suburban – there are hundreds of cultural differences that individually and in endless combinations influence our conceptions of fairness, how we categorize things, our method of judging and decision making, and our deeply held beliefs about the nature of the self, among other aspects of our psychological makeup.

We are just at the beginning of learning how these fine-grained cultural differences affect our thinking. 
 
Recent research has shown that people in “tight” cultures, those with strong norms and low tolerance for deviant behaviour, develop higher impulse control and more self-monitoring abilities than those from other places. Men raised in the honor culture of the American South have been shown to experience much larger surges of testosterone after insults than do Northerners. Research published late last year suggested psychological differences at the city level too. Compared to San Franciscans, Bostonians’ internal sense of self-worth is more dependent on community status and financial and educational achievement. “A cultural difference doesn’t have to be big to be important,” Norenzayan said. “We’re not just talking about comparing New York yuppies to the Dani tribesmen of Papua New Guinea.”

As Norenzayan sees it, the last few generations of psychologists have suffered from “physics envy,” and they need to get over it. Their job, experimental psychologists often assumed, was to push past the content of people’s thoughts and see the underlying universal hardware at work. “This is a deeply flawed way of studying human nature,” Norenzayan told me, “because the content of our thoughts and their process are intertwined.” In other words, if human cognition is shaped by cultural ideas and behavior, it can’t be studied without taking into account what those ideas and behaviors are and how they are different from place to place.

Henrich, Heine and Norenzayan’s fear of being ostracized after the publication of the WEIRD paper turned out to be misplaced. Response to the paper, both published and otherwise, has been nearly universally positive, with more than a few of their colleagues suggesting that the work will spark fundamental changes.

After reading the paper, academics from other disciplines began to come forward with their own mea culpas. In response to the WEIRD paper, two brain researchers from Northwestern University argued that the nascent field of neuroimaging had made the same mistake as psychologists, noting that 90 percent of neuroimaging studies were performed in Western countries. Researchers in motor development similarly suggested that their discipline’s body of research ignored how different child-rearing practices around the world dramatically influence development. Two psycholinguistics professors suggested that their colleagues also made the same mistake: blithely assuming human homogeneity while focusing their research primarily on one rather small slice of humanity.

The challenge of the WEIRD paper is not simply to the field of experimental human research (do more cross-cultural studies!); it is a challenge to our Western conception of human nature. 

For some time now, the most widely accepted answer to the question of why humans, among all animals, have so successfully adapted to environments across the globe is that we have big brains with the ability to learn, improvise, and problem-solve.Henrich has replaced this “cognitive niche” hypothesis with the “cultural niche” hypothesis. He notes that the amount of knowledge in any culture is far greater than the capacity of individuals to learn or figure it all out on their own. He suggests that individuals tap that cultural storehouse of knowledge simply by mimicking (often unconsciously) the behavior and ways of thinking of those around them. We shape a tool in a certain manner, adhere to a food taboo, or think about fairness in a particular way, not because we individually have figured out that behavior’s adaptive value, but because we instinctively trust our culture to show us the way.

When Henrich asked Fijian women why they avoided certain potentially toxic fish during pregnancy and breastfeeding, he found that many didn’t know. Regardless of their personal understanding, by mimicking this culturally adaptive behavior they were protecting their offspring. The unique trick of human psychology, these researchers suggest, might be this: our big brains are evolved to let local culture lead us in life’s dance.

The applications of this new way of looking at the human mind are still budding. Henrich suggests that his research about fairness might first be applied to anyone working in international relations or development. People are not “plug and play,” as he puts it, and you cannot expect to drop a Western court system or form of government into another culture and expect it to work as it does back home. Those trying to use economic incentives to encourage sustainable land use will similarly need to understand local notions of fairness to have any chance of influencing behavior in predictable ways.

Because of our peculiarly Western way of thinking of ourselves as independent of others, this idea of the culturally shaped mind doesn’t go down very easily.
Perhaps the richest and most established vein of cultural psychology – that which compares Western and Eastern concepts of the self –  goes to the heart of this problem. Heine has spent much of his career following the lead of a seminal paper published in 1991 by Hazel Rose Markus, of Stanford University, and Shinobu Kitayama, who is now at the University of Michigan. Markus and Kitayama suggested that different cultures foster strikingly different views of the self, particularly along one axis: some cultures regard the self as independent from others; others see the self as interdependent. The interdependent self –  which is more the norm in East Asian countries, including Japan and China –  connects itself with others in a social group and favors social harmony over self-expression. The independent self –  which is most prominent in America –  focuses on individual attributes and preferences and thinks of the self as existing apart from the group.

That we in the West develop brains that are wired to see ourselves as separate from others may also be connected to differences in how we reason. Unlike the vast majority of the world, Westerners (Americans in particular) tend to reason analytically opposed to holistically. The American mind strives to figure out the world by taking it apart and examining its pieces. 

Show a Japanese and an American the same cartoon of an aquarium, and the American will remember details mostly about the moving fish while the Japanese observer will likely later be able to describe the seaweed, the bubbles and other objects in the background. In the “rod and frame” task, where one has to judge whether a line is vertical even though the frame around it is skewed, Americans easily see the line apart from the frame, just as they see themselves as apart from the group.

Heine and others suggest that such differences may be the echoes of cultural activities and trends going back thousands of years. Whether you think of yourself as interdependent or independent may depend on whether your distant ancestors farmed rice (which required a great deal of shared labor and group cooperation) or herded animals (which rewarded individualism and aggression). Heine points to Nisbett at Michigan, who has argued that the analytic/holistic dichotomy in reasoning styles can be clearly seen, respectively, in Greek and Chinese philosophical writing dating back 2,500 years. These psychological trends and tendencies may echo down generations, hundreds of years after the activity or situation that brought them into existence has disappeared or fundamentally changed.

And here is the rub: the culturally shaped analytic/individualistic mind-sets may partly explain why Western researchers have so dramatically failed to take into account the interplay between culture and cognition. In the end, the goal of boiling down human psychology to hardwiring is not surprising given the type of mind that has been designing the studies. Taking an object (in this case the human mind) out of its context is, after all, what distinguishes the analytic reasoning style prevalent in the West. Similarly, we may have underestimated the impact of culture because the very ideas of being subject to the will of larger historical currents and of unconsciously mimicking the cognition of those around us challenges our Western conception of the self as independent and self-determined. The historical missteps of Western researchers are the predictable consequences of the WEIRD mind doing the thinking.

Ethan Watters, a contributor to This American Life, Mother Jones, and Wired, is the author of Crazy Like Us: The Globalization of the American Psyche. This article originally appeared in Pacific Standard.

Friday, October 4, 2013

The Human Condition: Struggles of Cosmic Insignificance: The Polarized Mind




The Human Condition: Struggles of Cosmic Insignificance

           

The polarized mind — a reaction to the human condition and feelings of cosmic insignificance — fixates on one point of view to the utter exclusion of all others.

By Kirk J. Schneider, PhD
October 2013

Polarizing Events Within the Mind
"The Polarized Mind" by Kirk J. Schneider, PhD, draws from the standpoint of existential psychology, and details how the polarized mind has ravaged leaders and cultures throughout history.


Photo By Fotolia/Andrew Kuzmin



In The Polarized Mind (University Professors Press, 2013), Kirk J. Schneider, PhD, states that an individual, stricken with one absolute belief to the exclusion or even demonization of others, leads to bigotry, tyranny, and vengefulness. Dr. Schneider draws on his work in the field of humanistic depth psychology to posit that polarization is caused by a sense of cosmic insignificance, heightened in the trials of personal trauma. In this selection from "The Bases of Polarization," the nature of the human condition plays a fundamental role in the formation of polarization in the human mind.


The Bases of Polarization


Throughout human history, people have repeatedly swung between extremes. Arthur Schlesinger Jr. (1986) noted these swings in his classic book The Cycles of American History. In this book, Schlesinger articulated the continuous political swings in U.S. history, particularly those between conservatism and liberalism, rigidity and permissiveness. However, there are many other forms of such swings in many other times and places.

The usual explanations for the swings of history, as well as individuals, are cultural, political, and biological. The founders of the United States swung away from the British motherland because of political and religious oppression. Certain nineteenth century abolitionists resorted to armed struggle because of unrelenting federal support of slavery. Post World War I Germany amassed a titanic arsenal, in part to avenge the humiliation it perceived at the Treaty of Versailles. McCarthyite anti-communists swelled in number following the advent of Soviet expansionism in Eastern Europe. And so on. Schlesinger provides a cogent summation of these various dynamics:
"The roots of…cyclical self-sufficiency doubtless lie deep in the natural life of humanity. There is a cyclical pattern in organic nature — in the tides, in the seasons, in the night and day, in the systole and diastole of the human heart….People can never be fulfilled for long either in the public or in the private sector. We try one, then the other, and frustration compels a change in course. Moreover, however effective a particular course may be in meeting one set of troubles, it generally falters and fails when new troubles arise."

At the individual level, too, the conventional wisdom embraces both cultural and biological explanations. Depression is now frequently considered a biologically based disorder, rooted in an imbalance of Serotonin in the brain. Anorexia, too, is often considered a biologically and culturally based condition, stemming from an overemphasis on thinness in Western fashions. Obsessive-compulsiveness, mania, criminality, and many other forms of suffering are also considered combinations of biologically or genetically based chemical imbalances and familial or cultural influences.

However, thanks to the expanding insights of psychological depth research, we now have a clearer picture that what we once took to be biologically or culturally based appears to be rooted in a much thornier problem — the condition of being human. What I mean by this is that polarization in all forms appears to be based not just on a reaction against a particular family, or society, or physiology but on the shocking nature of the human condition itself, which, at its extremes, is the most daunting condition of all.

And what is this human condition (or “condition humane,” as Andre Malreaux put it)? It is the relationship of the human being to the groundlessness of space and time, to death, and to the most radical mystery of all, existence itself.

Just consider, for example, what happens in a classic pattern of polarization. A person or persons become injured, and the injury leads to a reaction. This reaction might take the form of a religious decree to rid the world of infidels (e.g., those who had formerly attempted to undermine established religious precepts). It might take the form of a political mobilization (e.g., fanatical nationalism) in the wake of a threatened state (e.g., post World War I Germany). Or it might take the form of a humiliated individual vowing to avenge his abusers. In each of these cases there is a time-tested dynamic at play. Initially there is a sense of helplessness (despair), then there is a reaction against that helplessness (polarization, fanaticism), followed by a destructive outbreak as a result of that reaction.

Hence, if we peel back the layers of this scenario, what do we find? We certainly find physiological (e.g., fight and flight) reactions (as Schlesinger and others have noted), classical psychodynamic issues stemming from childhood (as Freud and others have contended), and behavioral dimensions, such as conditioned reactions to aversive stimuli (as Skinner and others have pointed out). But are these really the essential building blocks of polarized experiences, of stuck and life-encompassing fixations, or the extremes and fanaticisms of theocracies, military-industrial complexes, and hate-driven assassins? The emerging consensus is quite probably “no.”

Although the traditional explanations work to a point, depth research unveils that they are but harbingers or glimpses of a much more encompassing problem. For example, the latest research on the roots of extremism centers on what is aptly termed “terror management theory”. In this theory, built on a growing base of cross-cultural research, the deeper we probe the layers of psychosocial extremes, the closer we come to anxieties about existence itself — coinciding with and extending beyond the physiological, familial, and cultural. In short, according to Terror Management Theory, polarization arises from culturally diversified experiences of death anxiety, and death anxiety is aroused by an extraordinary range of secondary fears. Among these fears is humiliation, or the terror of feeling insignificant. Witness the following conclusion by Arie Kruglanski, one of the leading investigators of global terrorism. Drawing in part on Terror Management research, and in part on the data that he and his colleagues at the National Consortium for the Study of Terrorism and Responses to Terrorism have amassed, he asserts:

"Personal significance is a motivation that has been recognized by psychological theorists as a major driving force of human behavior. Terrorists feel that through suicide, their lives will achieve tremendous significance. They will become heroes, martyrs. In many cases, their decision is a response to great loss of significance, which can occur through humiliation, discrimination or personal problems…Interesting[ly], research shows that poverty is not the root cause of terrorism. Many terrorists come out of the middle class, and some [like Osama Bin Laden] are quite well-to-do."
As Kruglanski intimates, therefore, terrorism in particular and polarization in general are rooted in a very profound problem of the human situation. It is not a problem that can simply be eliminated through material comforts, physical well-being, or even in some cases loving and well-adjusted families. It is a problem that each individual must confront in varying degrees during their lifetimes, because it is not a problem that will go away. Although physical and psychological vulnerability and ultimately annihilation appear to be at the crux of this problem, I suggest that there is something even more subtle at play, something even more harrowing. This “something” is what I and others call “existential anxiety.” Existential anxiety is not just the fear of physical death but the fear of the implications of physical death. Existing in a universe that has no calculable end and no calculable beginning — that is a radical mystery. It is our terror of our bewildering fragility, our nothingness before the vastness of space and time, and our steady transformation from matter to inexplicable dust.

Trauma, shock, and disruption all signal us to this incomprehensible state of affairs. They jar us out of our comfort zones and peel back the profundities lying just beneath our routines. Virtually everyone who is polarized, I contend, has been a victim of existential panic; and virtually all of us, in varying degrees, have experienced this polarization. The question is: How do we prevent, or at least manage, the most destructive polarizations — the polarizations that wage egregious wars, that initiate relentless hatred, that concentrate obscene accumulation of wealth, and that deplete, everyday, the imperative resources of nations?

Before we can address this question, we need to look more thoroughly at the psychological bases of polarization throughout history, the damage that polarization has wreaked, and the fates that have awaited those who fought valiantly to oppose it.


Reprinted with permission from The Polarized Mind: Why It's Killing Us and What We Can Do About It by Kirk J. Schneider, PhD and published by University Professor's Press, 2013.