Commentary on devolution of advanced societies towards tribalism.

I have been wanting to point to a number of Op-Ed articles that try to make a story to explain the apparent devolution of many advanced societies towards tribalism. Trump is a symptom, not a cause, of trends that have been growing for the past 30 years.

 Cohen notes:

Looking back, it’s now easy enough to see that the high point of democracy — the victory of open systems over the Soviet imperium that brought down the Berlin Wall in 1989 and set free more than 100 million Central Europeans — was quickly followed by the unleashing of economic forces that would undermine democracies. Far from ending history, liberalism triumphant engendered a reaction.

Increasingly, companies have been displacing nations as the units of international competition:

They optimize globally, rather than nationally. Their aim is to maximize profits across the world — allocating cash where it is most beneficial, finding labor where it is cheapest — not to pursue some national interest.

The shift was fast-forwarded by advances in communications that rendered distance irrelevant, and by the willingness in most emerging markets to open borders to foreign investment and new technologies.

Hundreds of millions of people in these developing countries were lifted from poverty into the middle class. Conversely, in Western societies, a hollowing out of the middle class began as manufacturing migrated, technological advances eliminated jobs and wages stagnated.

The global view did not suit everyone. In what the French call the “periphery” — areas far from the wired metropolis — it began to look like a not-so-subtle sabotaging of the nation. The moneyed got to run a rigged system, in a different universe from those whose lives remained local.

As inequality grew nationally (while narrowing globally), and impunity for financial disaster accompanied it, anger mounted. Frustration translated into an increasingly xenophobic search for scapegoats.

Three decades on, nationalism, nativism and illiberalism are ascendant, from Donald Trump’s United States, to Jaroslaw Kaczynski’s Poland, to Daw Aung San Suu Kyi’s Myanmar. It’s an astonishing turnabout, but it has its logic.

If we live today at an inflection point, it is because it’s impossible to say how much further rightist and illiberal authoritarianism may go.

Trump is a symptom, not a cause. That is why he may be hard to dislodge. He intuited the extent of American anger better than anyone. He also intuited a kind of cultural despair that made millions of Americans impervious to his lewd vulgarity — in fact, inclined to cheer him on in sticking it in the eye of the “establishment.”

An Op-Ed piece by David Brooks quotes Jonathan Haidt, who:

…listed some of the reasons centrifugal forces may now exceed centripetal: the loss of the common enemies we had in World War II and the Cold War, an increasingly fragmented media, the radicalization of the Republican Party, and a new form of identity politics, especially on campus... Haidt made the interesting point that identity politics per se is not the problem. Identity politics is just political mobilization around group characteristics. The problem is that identity politics has dropped its centripetal elements and become entirely centrifugal.

From an identity politics that emphasized our common humanity, we’ve gone to an identity politics that emphasizes having a common enemy. On campus these days, current events are often depicted as pure power struggles — oppressors acting to preserve their privilege over the virtuous oppressed.

“A funny thing happens,” Haidt said, “when you take young human beings, whose minds evolved for tribal warfare and us/them thinking, and you fill those minds full of binary dimensions. You tell them that one side in each binary is good and the other is bad. You turn on their ancient tribal circuits, preparing them for battle. Many students find it thrilling; it floods them with a sense of meaning and purpose.”

The problem is that tribal common-enemy thinking tears a diverse nation apart. This pattern is not just on campus. Look at the negative polarization that marks our politics. Parties, too, are no longer bound together by creeds but by enemies.

Brooks also cites Bruckner, who argues:

…that excessive individualism paradoxically leads to in-group/out-group tribalism. Modern individualism releases each person from social obligation, but “being guided only by the lantern of his own understanding, the individual loses all assurance of a place, an order, a definition. He may have gained freedom, but he has lost security.”..We each have to write our own gospel that defines our own virtue…The easiest way to do that is to tell a tribal oppressor/oppressed story and build your own innocence on your status as victim. Just about everybody can find a personal victim story. Once you’ve identified your herd’s oppressor — the neoliberal order, the media elite, white males, whatever — your goodness is secure. You have virtue without obligation. Nothing is your fault.

Finally Brooks notes that both Haidt and Bruckner:

...point to the fact that we’ve regressed from a sophisticated moral ethos to a primitive one. The crooked timber school of humanity says the line between good and evil runs through each person and we fight injustice on the basis of our common humanity. The oppressor/oppressed morality says the line runs between tribes. That makes it easy to feel good about yourself. But it makes you very hard to live with.

An essay by Thomas Edsall quotes thoughts emailed to him by Steven Pinker:

The answer lies in raw tribalism: when someone is perceived as a champion of one’s coalition, all is forgiven. The same is true for opinions: a particular issue can become a sacred value, shibboleth, or affirmation of allegiance to one’s team, and its content no longer matters. This is part of a growing realization in political psychology that tribalism has been underestimated in our understanding of politics, and ideological coherence and political and scientific literacy overestimated.

…the full ingenuity of human cognition is recruited to valorize the champion and shore up the sacred beliefs. You can always dismiss criticism as being motivated by the bias of one’s enemies. Our cognitive and linguistic faculties are endlessly creative — that’s what makes our species so smart — and that creativity can be always deployed to reframe issues in congenial or invidious terms.

Another quote from Pinker on tribalism is found in Galanes’ article on a conversation between Bill Gates and Pinker:

One of the biggest enemies of reason is tribalism. When people subscribe to an ideology, they suck up evidence that supports their preconceptions and filter out evidence that goes against them. Contrary to the belief of most scientists that denial of climate change is an effect of scientific illiteracy, it is not at all correlated with scientific literacy. People who believe in man-made climate change don’t know any more about climate or science than those who deny it. It’s almost perfectly correlated with left-wing versus right-wing orientation. And a move toward greater rationality would unbundle them and let evidence inform what the optimal policies ought to be.

And, a quote from Don Symons:

Our species is profoundly coalitional, and in most times and places moral prescriptions apply only to one’s in-group, not to humanity in general. I don’t see any evidence that we evolved innate, universal moral rules about how to treat all humans. That’s why history, as James Joyce said, is a nightmare. Prehistory is worse. I assume that coalitional-thinking is what Trump was getting at when he claimed that he could shoot someone on 5th Avenue and his base would still love him. It’s not that they feel that killing a random stranger for no reason is morally ok; it’s that loyalty to their coalition leader is primary.

Now.... This post is too long to start on ideas for correcting the trend towards tribalism. In a future MindBlog post I hope to summarize some articles suggesting ways to transcend tribalism.

Corporate social responsibility to counter the sociopathy of capitalism?

Sorkin describes a striking letter sent out to business leaders by BlackRock, the largest investment firm in the world. The article and letter are worth a read. In the absence of significant government action, is this the only hope for countering the automatic inequities that result from exercisings only the profit motive of capitalism? The letter informs..

..business leaders that their companies need to do more than make profits — they need to contribute to society as well if they want to receive the support of BlackRock.

Mr. Fink has the clout to make this kind of demand: His firm manages more than $6 trillion in investments through 401(k) plans, exchange-traded funds and mutual funds, making it the largest investor in the world, and he has an outsize influence on whether directors are voted on and off boards.

From his letter:

“Society is demanding that companies, both public and private, serve a social purpose,...To prosper over time, every company must not only deliver financial performance, but also show how it makes a positive contribution to society.”

“many governments are failing to prepare for the future, on issues ranging from retirement and infrastructure to automation and worker retraining...As a result, society increasingly is turning to the private sector and asking that companies respond to broader societal challenges.”

We can only hope.....

How our bones regulate our weight.

Jansson et al. report that bones have a gravity sensor that initiates metabolic changes that compensate for a sudden change in body weight to return the body to its desired homeostatic weight set point:

Significance

The only known homeostatic regulator of fat mass is the leptin system. We hypothesized that there is a second homeostat regulating body weight with an impact on fat mass. In this study we have added and removed weight loads from experimental animals and measured the effects on the biological body weight. The results demonstrate that there is a body weight homeostat that regulates fat mass independently of leptin. As the body weight-reducing effect of increased loading was dependent on osteocytes, we propose that there is a sensor for body weight in the long bones of the lower extremities acting as “body scales.” This is part of a body weight homeostat, “gravitostat,” that keeps body weight and body fat mass constant.

Abstract

Subjects spending much time sitting have increased risk of obesity but the mechanism for the antiobesity effect of standing is unknown. We hypothesized that there is a homeostatic regulation of body weight. We demonstrate that increased loading of rodents, achieved using capsules with different weights implanted in the abdomen or s.c. on the back, reversibly decreases the biological body weight via reduced food intake. Importantly, loading relieves diet-induced obesity and improves glucose tolerance. The identified homeostat for body weight regulates body fat mass independently of fat-derived leptin, revealing two independent negative feedback systems for fat mass regulation. It is known that osteocytes can sense changes in bone strain. In this study, the body weight-reducing effect of increased loading was lost in mice depleted of osteocytes. We propose that increased body weight activates a sensor dependent on osteocytes of the weight-bearing bones. This induces an afferent signal, which reduces body weight. These findings demonstrate a leptin-independent body weight homeostat (“gravitostat”) that regulates fat mass.

Taming modern Frankensteins

The Jan. 12 issue of Science Magazine has an interesting section of articles on the long shadow cast by Mary Shelley’s 200 year old Frankenstein tale. Shultz offers a toolbox for creating a modern monster, Kupferschmidt describes the writing of Bostrom and others concerned that artificial intelligence may lead to the extinction of Homo Sapiens,and Jon Cohen offers a glossary of Frankenwords that I paste in here:

Frankenbrooms

Supercoated broomheads used in curling, a winter sport played on ice.

Frankencell

J. Craig Venter's attempt to create an artificial cell containing the smallest possible number of essential genes.

Frankenfears

Exaggerated concerns about transgenic food (Frankenfood) and other products of genetic engineering.

Frankenforests

Engineered trees that grow more quickly, absorbing more carbon dioxide and providing more wood and pulp without the need for toxic chemicals.

Frankengene

The catechol-O-methyltransferase gene. In 2008, researchers linked variants in the gene to the strong, frightful reaction some people have to horror movies.

Frankenmoth

A male diamondback moth engineered to spread a lethal gene to females, creating nonviable offspring that reduce the moth's toll on crops. Cousins include Frankenflies and Frankenmosquitoes.

Frankenmouse

A genetically or surgically altered mouse. Variations have included the “oncomouse” that's prone to cancer and the “earmouse” that had a human-shaped ear.

Frankenmums

Mothers who freeze eggs for their infertile daughters to use.

Frankenpets

Transgenic dogs that would repel fleas; cats that would not cause allergies.

Frankenpines

Cellphone towers that resemble pine trees.

Frankenrobot

A robot, created at the University of Reading in the United Kingdom, that had a “brain” made of rat neurons placed on a multielectrode array.

Frankenshoes

Platform shoes with wedge heels or sneakers with heels.

Frankensites

University websites that have conflicting material posted by professors and their departments.

Frankenspuds

Genetically modified potatoes that are resistant to blight. Also known as Frankenfries.

Frankenstorm

A combination of storms that creates a monster event. Superstorm Sandy famously merged with another storm in 2012 to wallop the U.S. East Coast.

Preferences for moral vs. immoral traits in others are conditional

Wow, talk about work relevant to our current political situation...where some people (like myself) can not understand how anyone could support a president who is a sexual predator who has lied over 2,000 times since taking office and admitted zero of those lies. Menikoff and Bailey do straightforward experiments showing our preference for morality vs. immorality is conditional on the demands of our current goals, and not due solely to innate, “hardwired” links or personal learning experiences. Thus my intelligent Trump supporting friend says "I ignore Trump's behavior, and just note that things I want (more aggressive foreign poligy and tax cuts for the rich) are happening."

Significance

It is commonly argued that humans have a dominant preference for morality traits vs. immorality traits in others—that is, irrespective of the surrounding context, morality fosters liking, and immorality fosters disliking. The results of four experiments oppose this view by showing that situational goals can eliminate and even reverse the preference for morality vs. immorality in others. These findings suggest that our preference for morality vs. immorality is conditional on the demands of our current goals and cannot be attributed solely to innate, “hardwired” links or personal learning experiences. They also suggest that immoral people sometimes win public adoration, and the power that comes with it, not in spite of but precisely because of their immorality.

Abstract

The preference for morality in others is regarded as a dominant factor in person perception. Moral traits are thought to foster liking, and immoral traits are thought to foster disliking, irrespective of the context in which they are embedded. We report the results of four studies that oppose this view. Using both explicit and implicit measures, we found that the preference for morality vs. immorality in others is conditional on the evaluator’s current goals. Specifically, when immorality was conducive to participants’ current goals, the preference for moral vs. immoral traits in others was eliminated or reversed. The preferences for mercifulness vs. mercilessness (experiment 1), honesty vs. dishonesty (experiment 2), sexual fidelity vs. infidelity (experiment 3), and altruism vs. selfishness (experiment 4) were all found to be conditional. These findings oppose the consensus view that people have a dominant preference for moral vs. immoral traits in others. Our findings also speak to nativist and empiricist theories of social preferences and the stability of the “social contract” underlying productive human societies.

Self protection from social media feedback.

Rodman et al. show that adults and adolescents deal with peer feedback in very different ways:

Significance

The growing popularity of social media, especially among youth, has resulted in peer feedback (including rejection) pervading everyday life. Given that peer ostracism has been linked to depression and suicide, it is critical to understand the psychological impact of peer feedback from a developmental perspective. We demonstrate that adolescents and adults use peer feedback to inform views of themselves and of others in very different ways. Of particular interest, early adolescents internalized rejection from peers and felt worse about themselves, whereas adults exhibited evidence of self-protective biases that preserved positive self-views. This work advances theoretical insights into how development shapes social-evaluative experiences and informs sources of vulnerability that could put adolescents at unique risk for negative mental health outcomes.

Abstract

Adolescence is a developmental period marked by heightened attunement to social evaluation. While adults have been shown to enact self-protective processes to buffer their self-views from evaluative threats like peer rejection, it is unclear whether adolescents avail themselves of the same defenses. The present study examines how social evaluation shapes views of the self and others differently across development. N = 107 participants ages 10–23 completed a reciprocal social evaluation task that involved predicting and receiving peer acceptance and rejection feedback, along with assessments of self-views and likability ratings of peers. Here, we show that, despite equivalent experiences of social evaluation, adolescents internalized peer rejection, experiencing a feedback-induced drop in self-views, whereas adults externalized peer rejection, reporting a task-induced boost in self-views and deprecating the peers who rejected them. The results identify codeveloping processes underlying why peer rejection may lead to more dramatic alterations in self-views during adolescence than other phases of the lifespan.

The ‘social genomes’ of friends are correlated.

Here is an interesting study from Domingue et al.:

Significance

Our study reported significant findings of a “social genome” that can be quantified and studied to understand human health and behavior. In a national sample of more than 5,000 American adolescents, we found evidence of social forces that act to make friends and schoolmates more genetically similar to one another compared with random pairs of unrelated individuals. This subtle genetic similarity was observed across the entire genome and at sets of genomic locations linked with specific traits—educational attainment and body mass index—a phenomenon we term “social–genetic correlation.” We also find evidence of a “social–genetic effect” such that the genetics of a person’s friends and schoolmates influenced their own education, even after accounting for the person’s own genetics.

Abstract

Humans tend to form social relationships with others who resemble them. Whether this sorting of like with like arises from historical patterns of migration, meso-level social structures in modern society, or individual-level selection of similar peers remains unsettled. Recent research has evaluated the possibility that unobserved genotypes may play an important role in the creation of homophilous relationships. We extend this work by using data from 5,500 adolescents from the National Longitudinal Study of Adolescent to Adult Health (Add Health) to examine genetic similarities among pairs of friends. Although there is some evidence that friends have correlated genotypes, both at the whole-genome level as well as at trait-associated loci (via polygenic scores), further analysis suggests that meso-level forces, such as school assignment, are a principal source of genetic similarity between friends. We also observe apparent social–genetic effects in which polygenic scores of an individual’s friends and schoolmates predict the individual’s own educational attainment. In contrast, an individual’s height is unassociated with the height genetics of peers.

How much can we change our aging?

I'm using this post to point to the notes for a lecture on aging that I recently gave to a senior group in Austin Texas. It begins with a list of things over which we have little influence:

First would be our genetics. 50% of the odds of your dying in a given year is determined by your genetics, how long people in your family lineage have lived.

Second is disease. 50% of the chance that you will get a debilitating or terminal disease, especially cancer, is a throw of the dice, good or bad luck on whether particular genes randomly mutate to a bad place when cells divide, we get to influence only 30% of the risk of our getting cancer by changing lifestyle, diet, supplements, whatever.

Third would be our early life situation. 50% of what determines your cognitive vitality and intelligence in later life depends on how you started out - your intelligence when you were 11 years old. Your general cognitive ability with respect to your peers remains constant over your life course.

The bottom line is that ~2/3 of the odds of whether we are going go bonkers or croak at a given age is random chance, genetics, or early life experience over which we had no control.

The balance of the talk deals with the 30% or so of the odds we can influence: what we eat and drink, how we move, how we think, how we socialize.

Improving ourselves to death

Alexandra Schwartz notes a number of self help books and considers how their advice reflects the beliefs and priorities of our era. Here are a few clips:

In our current era of non-stop technological innovation, fuzzy wishful thinking has yielded to the hard doctrine of personal optimization. Self-help gurus need not be charlatans peddling snake oil. Many are psychologists with impressive academic pedigrees and a commitment to scientific methodologies, or tech entrepreneurs with enviable records of success in life and business. What they’re selling is metrics. It’s no longer enough to imagine our way to a better state of body or mind. We must now chart our progress, count our steps, log our sleep rhythms, tweak our diets, record our negative thoughts—then analyze the data, recalibrate, and repeat.

We are being sold on the need to upgrade all parts of ourselves, all at once, including parts that we did not previously know needed upgrading. (This may explain Yoni eggs, stone vaginal inserts that purport to strengthen women’s pelvic-floor muscles and take away “negative energy.” Gwyneth Paltrow’s Web site, Goop, offers them in both jade and rose quartz.) There is a great deal of money to be made by those who diagnose and treat our fears of inadequacy...We are under pressure to show that we know how to lead the perfect life.

The desire to achieve and to demonstrate perfection is not simply stressful; it can also be fatal, according to the British journalist Will Storr. “We’re living in an age of perfectionism, and perfection is the idea that kills...People are suffering and dying under the torture of the fantasy self they’re failing to become.”

If the ideal of the optimized self isn’t simply a fad, or even a preference, but an economic necessity, how can any of us choose to live otherwise? Storr insists that there is a way. “This isn’t a message of hopelessness,” he writes. “On the contrary, what it actually leads us towards is a better way of finding happiness. Once you realize that it’s all just an act of coercion, that it’s your culture trying to turn you into someone you can’t really be, you can begin to free yourself from your demands.”

Those for whom the imperative to “do you” feels like an unaffordable luxury may take some solace from Svend Brinkmann’s book “Stand Firm: Resisting the Self-Improvement Craze” ...The pace of life is accelerating, he says. We succumb to fleeting trends in food, fashion, and health. Technology has eroded the boundary between work and private life; we are expected to be constantly on call, to do more, “do it better and do it for longer, with scant regard for the content or the meaning of what we are doing.” Like Storr, Brinkmann condemns self-improvement as both a symptom and a tool of a relentless economy. But where Storr sees a health crisis, Brinkmann sees a spiritual one. His rhetoric is that of a prophet counselling against false idols. “In our secular world, we no longer see eternal paradise as a carrot at the end of the stick of life, but try to cram as much as possible into our relatively short time on the planet instead,” ... as Brinkmann’s title makes clear, standing still is precisely what he proposes that we do. Enough of our mania to be the best and the most, he says. It’s time to content ourselves with being average.

Brinkmann does offer some advice that seems immediately worth taking. Go for a walk in the woods, he says, and think about the vastness of the cosmos. Go to a museum and look at art, secure in the knowledge that it will not improve you in any measurable way. Things don’t need to be of concrete use in order to have value. Put away your self-help guides, and read a novel instead.

Explanation of fraternal birth order effect on sexual orientation.

A number of studies have by now confirmed that the probability of a boy growing up to be gay increases for each older brother born to the same mother, the so-called fraternal birth order (FBO) effect. Between 15% and 29% of gay men owe their sexual orientation to this effect. Bogaert et al. now present direct biochemical evidence indicating that the increased incidence of homosexuality in males with older brothers results from a progressive immunization of the mother against a male-specific cell-adhesion protein that plays a key role in cell–cell interactions, specifically in the process of synapse formation. Here are the details:

Significance

Gay men have, on average, a greater number of older brothers than do heterosexual men, a well-known finding within sexual science. This finding has been termed the fraternal birth order effect. Strong scientific interest in sexual orientation exists because it is a fundamental human characteristic, and because its origins are often the focal point of considerable social controversy. Our study is a major advance in understanding the origins of sexual orientation in men by providing support for a theorized but previously unexamined biological mechanism—a maternal immune response to a protein important in male fetal brain development—and by beginning to explain one of the most reliable correlates of male homosexuality: older brothers.

Abstract

We conducted a direct test of an immunological explanation of the finding that gay men have a greater number of older brothers than do heterosexual men. This explanation posits that some mothers develop antibodies against a Y-linked protein important in male brain development, and that this effect becomes increasingly likely with each male gestation, altering brain structures underlying sexual orientation in their later-born sons. Immune assays targeting two Y-linked proteins important in brain development—protocadherin 11 Y-linked (PCDH11Y) and neuroligin 4 Y-linked (NLGN4Y; isoforms 1 and 2)—were developed. Plasma from mothers of sons, about half of whom had a gay son, along with additional controls (women with no sons, men) was analyzed for male protein-specific antibodies. Results indicated women had significantly higher anti-NLGN4Y levels than men. In addition, after statistically controlling for number of pregnancies, mothers of gay sons, particularly those with older brothers, had significantly higher anti-NLGN4Y levels than did the control samples of women, including mothers of heterosexual sons. The results suggest an association between a maternal immune response to NLGN4Y and subsequent sexual orientation in male offspring.

Benefits of talking to yourself.

Talking to ourselves either internally or out loud we can switch from 1st person voice (I can do this) to second person (you can do this) or third person voice (Deric can do this). Kristin Wong does a piece pointing to several studies showing that this motivational self talk can lessen anxiety and improve performance. Focusing on the self from the distanced perspective of a third person, even though that person is you, enhances objectivity. Speaking the name of a familiar object out loud enhances its subsequent identification among random items. The work cited concluded that motivational self-talk works best on tasks based on speed, strength and power, while instructional self-talk works best with tasks that involved focus, strategy and technique.

Old brains come uncoupled in sleep.

From Helfrich et al.:

Highlights

•Precise coupling of NREM (Non-rapid-eye-movement) slow waves and spindles dictates memory consolidation 

•Aging impairs slow wave-spindle coupling, leading to overnight forgetting 

•Age-related atrophy in mPFC (medial prefrontal cortex) predicts the failure of such coupling and thus memory

Summary

The coupled interaction between slow-wave oscillations and sleep spindles during non-rapid-eye-movement (NREM) sleep has been proposed to support memory consolidation. However, little evidence in humans supports this theory. Moreover, whether such dynamic coupling is impaired as a consequence of brain aging in later life, contributing to cognitive and memory decline, is unknown. Combining electroencephalography (EEG), structural MRI, and sleep-dependent memory assessment, we addressed these questions in cognitively normal young and older adults. Directional cross-frequency coupling analyses demonstrated that the slow wave governs a precise temporal coordination of sleep spindles, the quality of which predicts overnight memory retention. Moreover, selective atrophy within the medial frontal cortex in older adults predicted a temporal dispersion of this slow wave-spindle coupling, impairing overnight memory consolidation and leading to forgetting. Prefrontal-dependent deficits in the spatiotemporal coordination of NREM sleep oscillations therefore represent one pathway explaining age-related memory decline.

How to detect that someone is sick.

Alexsson et al. do a study suggesting that you should look first for droopy eyelids and corners of the mouth, then also check for pale skin and lips, how puffy their faces look, eye redness, and tiredness. Here is their abstract:

Detection and avoidance of sick individuals have been proposed as essential components in a behavioural defence against disease, limiting the risk of contamination. However, almost no knowledge exists on whether humans can detect sick individuals, and if so by what cues. Here, we demonstrate that untrained people can identify sick individuals above chance level by looking at facial photos taken 2 h after injection with a bacterial stimulus inducing an immune response (2.0 ng kg−1 lipopolysaccharide) or placebo, the global sensitivity index being d′ = 0.405. Signal detection analysis (receiver operating characteristic curve area) showed an area of 0.62 (95% confidence intervals 0.60–0.63). Acutely sick people were rated by naive observers as having paler lips and skin, a more swollen face, droopier corners of the mouth, more hanging eyelids, redder eyes, and less glossy and patchy skin, as well as appearing more tired. Our findings suggest that facial cues associated with the skin, mouth and eyes can aid in the detection of acutely sick and potentially contagious people.

Figure - Averaged images of 16 individuals (eight women) photographed twice in a cross-over design, during experimentally induced (a) acute sickness and (b) placebo. Images made by Audrey Henderson, MSc, St Andrews University, using Psychomorph. Here, 184 facial landmarks were placed on each image before composites displaying the average shape, colour and texture were created

A Two-System Framework for understanding fear and anxiety.

LeDoux and Pine note that extensive study and understanding of how mammalian brains, including our own, detect and respond to threats has not led to significant improvements in clinical treatments. Their open source article suggests that a conceptual reframing is needed to distinguish two classes of responses elicited by threats. The graphics in the article provide useful summaries:

Tremendous progress has been made in basic neuroscience in recent decades. One area that has been especially successful is research on how the brain detects and responds to threats. Such studies have demonstrated comparable patterns of brain-behavior relationships underlying threat processing across a range of mammalian species, including humans. This would seem to be an ideal body of information for advancing our understanding of disorders in which altered threat processing is a key factor, namely, fear and anxiety disorders. But research on threat processing has not led to significant improvements in clinical practice. The authors propose that in order to take advantage of this progress for clinical gain, a conceptual reframing is needed. Key to this conceptual change is recognition of a distinction between circuits underlying two classes of responses elicited by threats: 1) behavioral responses and accompanying physiological changes in the brain and body and 2) conscious feeling states reflected in self-reports of fear and anxiety. This distinction leads to a “two systems” view of fear and anxiety. The authors argue that failure to recognize and consistently emphasize this distinction has impeded progress in understanding fear and anxiety disorders and hindered attempts to developmore effective pharmaceutical and psychological treatments. The two-system view suggests a new way forward.

Demonstrating reciprocity on a global scale.

In this age that seems characterized by increasing domestic and international chaos, I like to pass on any work that shows potential buffering or stability in our complex political and economic systems. Here is a contribution from Frank et al.; the open source article has useful graphics describing cooperation and reciprocity around the world:

Reciprocity stabilizes cooperation from the level of microbes all the way up to humans interacting in small groups, but does reciprocity also underlie stable cooperation between larger human agglomerations, such as nation states? Famously, evolutionary models show that reciprocity could emerge as a widespread strategy for achieving international cooperation. However, existing studies have only detected reciprocity-driven cooperation in a small number of country pairs. We apply a new method for detecting mutual influence in dynamical systems to a new large-scale data set that records state interactions with high temporal resolution. Doing so, we detect reciprocity between many country pairs in the international system and find that these reciprocating country pairs exhibit qualitatively different cooperative dynamics when compared to nonreciprocating pairs. Consistent with evolutionary theories of cooperation, reciprocating country pairs exhibit higher levels of stable cooperation and are more likely to punish instances of noncooperation. However, countries in reciprocity-based relationships are also quicker to forgive single acts of noncooperation by eventually returning to previous levels of mutual cooperation. By contrast, nonreciprocating pairs are more likely to exploit each other’s cooperation via higher rates of defection. Together, these findings provide the strongest evidence to date that reciprocity is a widespread mechanism for achieving international cooperation.

Forget about major life extension - Aging is a fundamental feature of multicellular life

Nelson and Masel, present a theoretical argument summarized by Wagner in his brief essay on their paper. From Wagner:

Paul Nelson and Joanna Masel present a theoretical result showing that aging in multicellular organisms is inevitable. The argument is as simple as it is powerful. Cellular senescence is a well-known consequence of the second law of thermodynamics, due to mutations, epigenetic misregulation, and protein misfolding. Molecular accidents in a cell can happen and they consequently do happen. In unicellular organisms, life is maintained because of natural selection against senescent cells and, thus, at the population level life can continue potentially indefinitely. However, in multicellular organisms, competition among cells has been killed to ensure cooperation among cells and thus the integrity of the organism. Breakdown of cooperation and unchecked competition among cells is known as cancer. Cooperation, and thus limited competition among cells, leads to the accumulation of senescent cells, while competition among cells kills the organism because of a breakdown of cooperation.

The result presented by Nelson and Masel... is a negative theoretical prediction based on very few but fundamental features of reality: senescence is a consequence of the second law of thermodynamics (molecular accidents and degradation are inevitable); senescence can be countered by natural selection; but natural selection among cells undermines cooperation among the cells of a multicellular organism. Thus, the multicellular organism is doomed either by senescence or cancer. The fact that this result is a negative prediction, like those of Gödel in mathematics, also explains why it can have a law-like certainty. It does not depend on contingent evolved properties of organisms but only on those which are intrinsic to life itself, namely that organisms are physical systems subject to the limits of thermodynamics, natural selection, and the need for cooperation among the cells in multicellular organisms.

Exercise alters the microbiome, enhancing immune function.

Reynolds points to interesting work by Allen et al. showing that exercise by lean, but not obese, subjects enhances microbial production of short chain fatty acids that suppress tissue irritation and inflammation in the colon as well as the rest of the body. These short fatty acids also boost metabolism and dampen the insulin resistance that is a precursor to diabetes.

Memories are stored by the extracellular matrix surrounding brain cells.

Fascinating work from Thompson et al., who show that degrading the extracellular matrix structure with local injections into visual cortex area 2L of bacterial enzyme chondroitinase ABC can abolish a remote visual fear memory:

Significance

Perineuronal nets (PNNs), a type of extracellular matrix only found in the central nervous system, wraps tightly around the cell soma and proximal dendrites of a subset of neurons. The PNNs are long-lasting structures that restrict plasticity, making them eligible candidates for memory processing. This work demonstrates that PNNs in the lateral secondary visual cortex (V2L) are essential for the recall of a remote visual fear memory. The results suggest a role of extracellular molecules in storage and retrieval of memories.

Abstract

Throughout life animals learn to recognize cues that signal danger and instantaneously initiate an adequate threat response. Memories of such associations may last a lifetime and far outlast the intracellular molecules currently found to be important for memory processing. The memory engram may be supported by other more stable molecular components, such as the extracellular matrix structure of perineuronal nets (PNNs). Here, we show that recall of remote, but not recent, visual fear memories in rats depend on intact PNNs in the secondary visual cortex (V2L). Supporting our behavioral findings, increased synchronized theta oscillations between V2L and basolateral amygdala, a physiological correlate of successful recall, was absent in rats with degraded PNNs in V2L. Together, our findings suggest a role for PNNs in remote memory processing by stabilizing the neural network of the engram.

The narcissism epidemic is dead?

An interesting piece from Wetzel et al., who find no evidence for a commonly reported narcissism epidemic over the past 10-20 years, based on the perception that today’s popular culture encourages individuals to engage in self-inflation:

Are recent cohorts of college students more narcissistic than their predecessors? To address debates about the so-called “narcissism epidemic,” we used data from three cohorts of students (1990s: N = 1,166; 2000s: N = 33,647; 2010s: N = 25,412) to test whether narcissism levels (overall and specific facets) have increased across generations. We also tested whether our measure, the Narcissistic Personality Inventory (NPI), showed measurement equivalence across the three cohorts, a critical analysis that had been overlooked in prior research. We found that several NPI items were not equivalent across cohorts. Models accounting for nonequivalence of these items indicated a small decline in overall narcissism levels from the 1990s to the 2010s (d = −0.27). At the facet level, leadership (d = −0.20), vanity (d = −0.16), and entitlement (d = −0.28) all showed decreases. Our results contradict the claim that recent cohorts of college students are more narcissistic than earlier generations of college students.

Figure: Difference between latent means estimated in partial-invariance models as a function of cohort and trait. The means of the 1990s cohort were constrained to 0 for model identification. Mean differences between the 1990s and the 2000s cohorts and between the 1990s and 2010s cohorts can be interpreted as standard deviations. Error bars show ±1 SE of the estimated mean difference.

The temporal organization of perception.

Ronconi et al. do interesting work suggesting that whether we perceive two visual stimuli as being separate events or a single event depends on a precise relationship between specific temporal window durations and specific brain oscillations measured by EEG (alpha oscillations (8–10 Hz)and theta oscillations (6–7 Hz):

Incoming sensory input is condensed by our perceptual system to optimally represent and store information. In the temporal domain, this process has been described in terms of temporal windows (TWs) of integration/segregation, in which the phase of ongoing neural oscillations determines whether two stimuli are integrated into a single percept or segregated into separate events. However, TWs can vary substantially, raising the question of whether different TWs map onto unique oscillations or, rather, reflect a single, general fluctuation in cortical excitability (e.g., in the alpha band). We used multivariate decoding of electroencephalography (EEG) data to investigate perception of stimuli that either repeated in the same location (two-flash fusion) or moved in space (apparent motion). By manipulating the interstimulus interval (ISI), we created bistable stimuli that caused subjects to perceive either integration (fusion/apparent motion) or segregation (two unrelated flashes). Training a classifier searchlight on the whole channels/frequencies/times space, we found that the perceptual outcome (integration vs. segregation) could be reliably decoded from the phase of prestimulus oscillations in right parieto-occipital channels. The highest decoding accuracy for the two-flash fusion task (ISI = 40 ms) was evident in the phase of alpha oscillations (8–10 Hz), while the highest decoding accuracy for the apparent motion task (ISI = 120 ms) was evident in the phase of theta oscillations (6–7 Hz). These results reveal a precise relationship between specific TW durations and specific oscillations. Such oscillations at different frequencies may provide a hierarchical framework for the temporal organization of perception.

Facebook admits its sociopathic side. Are social media the drug epidemic of our times?

An article by Farhad Manjoo notes that Facebook itself has pointed to work by Shakya and Christakis showing that overall the use of Facebook is negatively associated with well-being. From Shakya and Christakis:

For example, a 1-standard-deviation increase in “likes clicked” (clicking “like” on someone else's content), “links clicked” (clicking a link to another site or article), or “status updates” (updating one's own Facebook status) was associated with a decrease of 5%–8% of a standard deviation in self-reported mental health.

At the same time, work by Burke and Kraut suggests the effect of Facebook use on well-being depends on whether communication is passive (clicking "like" or on links) or more meaningful and active (actually engaging in back and forth conversations with friends important to the user). The latter use improves people's scores on well-being.

The ongoing debate is a useful one, particularly in light of suggestions that social media are a major drug epidemic of our times, addicting us to “short-term, dopamine-driven feedback loops” that “are destroying how society works.”

How early stress exposure influences adult decision making.

From Birn et al.:

Individuals who have experienced chronic and high levels of stress during their childhoods are at increased risk for a wide range of behavioral problems, yet the neurobiological mechanisms underlying this association are poorly understood. We measured the life circumstances of a community sample of school-aged children and then followed these children for a decade. Those from the highest and lowest quintiles of childhood stress exposure were invited to return to our laboratory as young adults, at which time we reassessed their life circumstances, acquired fMRI data during a reward-processing task, and tested their judgment and decision making. Individuals who experienced high levels of early life stress showed lower levels of brain activation when processing cues signaling potential loss and increased responsivity when actually experiencing losses. Specifically, those with high childhood stress had reduced activation in the posterior cingulate/precuneus, middle temporal gyrus, and superior occipital cortex during the anticipation of potential rewards; reduced activation in putamen and insula during the anticipation of potential losses; and increased left inferior frontal gyrus activation when experiencing an actual loss. These patterns of brain activity were associated with both laboratory and real-world measures of individuals’ risk taking in adulthood. Importantly, these effects were predicated only by childhood stress exposure and not by current levels of life stress.

Pax Technica - the new web of world government

Some clips from an Op-Ed piece by Roger Cohen:

...the puzzle remains. A year of Trump and the world has not veered off a precipice. Is there some 21st century iteration of Adam Smith’s “invisible hand” that explains this equilibrium?

One stab at defining such an invisible force that I find persuasive has been offered by Philip Howard, a professor of Internet Studies at Oxford University. He has coined the term “Pax Technica” to define the vast web of internet-connected devices that, together, create a network of stability.

Just as Smith’s “invisible hand” alluded to the unobservable market forces that lead to equilibrium in a free market, so Howard’s Pax Technica (the title of a book he wrote) evokes the cumulative stabilizing effect of the tens of billions of connected devices forming the Internet of Things (IoT). There is, simply put, too much connection in the world today to allow space for outright destruction, even emanating from Trump.

Implicit in this theory is a radical reordering of the nature of power. Pax Romana, Pax Britannica and Pax Americana depended on the military might of sovereign governments. Pax Technica shifts the source of stability to what Howard calls an “empire of connected things.” National authorities are less influential than supranational connected platforms and the private corporations behind them.

Under Pax Technica, there will be advocates of open systems and closed ones. There will be fierce competitions for influence. There will be nationalist and nativist reactions against the supranational apparent across the world today. There will be a reordering of societies — and possibly their increasing fragmentation — as Facebook traps people in what Chamath Palihapitiya, a former Facebook executive, recently called “short-term, dopamine-driven feedback loops.”

But there will also be the hard-to-measure investment of every owner of those billions of devices in a world of connectedness of which war is the enemy. Trump has come to power at a moment when power is increasingly passing out of the hands of governments. That may be even more reassuring than his incompetence.

Palihapatiya suggested Facebook has forged a world of “no civil discourse, no cooperation, misinformation.” Trump, of course, reflects that. But I think Facebook, on balance, also limits the devastation he can wreak.

When intuition overrides reason.

Gilbert Chin points to work by Walco and Risen showing that a third to a half of us will elect to rely on gut feelings even after having demonstrated an accurate understanding of which choice is more likely to pay off. This suggests that error detection and correction are not coupled (as in Kahneman' dual process model, with system 1's intuitive default decision subject to system 2's determination of accuracy), but rather that detection and correction are not coupled. The abstract:

Will people follow their intuition even when they explicitly recognize that it is irrational to do so? Dual-process models of judgment and decision making are often based on the assumption that the correction of errors necessarily follows the detection of errors. But this assumption does not always hold. People can explicitly recognize that their intuitive judgment is wrong but nevertheless maintain it, a phenomenon known as acquiescence. Although anecdotes and experimental studies suggest that acquiescence occurs, the empirical case for acquiescence has not been definitively established. In four studies—using the ratio-bias paradigm, a lottery exchange game, blackjack, and a football coaching decision—we tested acquiescence using recently established criteria. We provide clear empirical support for acquiescence: People can have a faulty intuitive belief about the world (Criterion 1), acknowledge the belief is irrational (Criterion 2), but follow their intuition nonetheless (Criterion 3)—even at a cost.

(Motivated readers can request a PDF of the article with experimental details from me.)

On gratitude...

I want to pass on this bit from an essay by Philip Garrity in the New York Times Philosophy Forum "The Stone". On recovering from the vibrancy and trauma of illness he notes:

I notice myself falling back into that same pattern of trying to harness the vibrancy of illness...I am learning, however slowly, that maintaining that level of mental stamina, that fever pitch of experience, is less a recipe for enlightenment, and more for exhaustion.

The existentialist philosopher Jean-Paul Sartre describes our experience as a perpetual transitioning between unreflective consciousness, “living-in-the-world,” and reflective consciousness, “thinking-about-the-world.” Gratitude seems to necessitate an act of reflection on experience, which, in turn, requires a certain abstraction away from that direct experience. Paradoxically, our capacity for gratitude is simultaneously enhanced and frustrated as we strive to attain it.

Perhaps, then, there is an important difference between reflecting on wellness and experiencing wellness. My habitual understanding of gratitude had me forcefully lodging myself into the realm of reflective consciousness, pulling me away from living-in-the-world. I was constantly making an inventory of my wellness, too busy counting the coins to ever spend them.

Gratitude, in the experiential sense, requires that we wade back into the current of unreflective consciousness, which, to the egocentric mind, can easily feel like an annihilation of consciousness altogether. Yet, Sartre says that action that is unreflective isn’t necessarily unconscious. There is something Zen about this, the actor disappearing into the action. It is the way of the artist in the act of creative expression, the musician in the flow of performance. But, to most of us, it is a loss of self — and the sense of competency that comes with it.

If there is any sage in me, he says I must accept the vulnerability of letting the pain fade, of allowing the wounds to heal. Even in the wake of grave illness — or, more unsettlingly, in anticipation of it — we must risk falling back asleep into wellness.

Mind the Hype - Mindfulness and Meditation

Smith et al. point to and summarize an article by Van Dam et al. I pass on the Van Dam et al. abstract:

During the past two decades, mindfulness meditation has gone from being a fringe topic of scientific investigation to being an occasional replacement for psychotherapy, tool of corporate well-being, widely implemented educational practice, and “key to building more resilient soldiers.” Yet the mindfulness movement and empirical evidence supporting it have not gone without criticism. Misinformation and poor methodology associated with past studies of mindfulness may lead public consumers to be harmed, misled, and disappointed. Addressing such concerns, the present article discusses the difficulties of defining mindfulness, delineates the proper scope of research into mindfulness practices, and explicates crucial methodological issues for interpreting results from investigations of mindfulness. For doing so, the authors draw on their diverse areas of expertise to review the present state of mindfulness research, comprehensively summarizing what we do and do not know, while providing a prescriptive agenda for contemplative science, with a particular focus on assessment, mindfulness training, possible adverse effects, and intersection with brain imaging. Our goals are to inform interested scientists, the news media, and the public, to minimize harm, curb poor research practices, and staunch the flow of misinformation about the benefits, costs, and future prospects of mindfulness meditation.

And also Smith et al.'s list of points that seem fairly settled (they provide supporting references):

-Meditation almost certainly does sharpen your attention. 

-Long-term, consistent meditation does seem to increase resiliency to stress. 

-Meditation does appear to increase compassion. It also makes our compassion more effective. 

-Meditation does seem to improve mental health—but it’s not necessarily more effective than other steps you can take. 

-Mindfulness could have a positive impact on your relationships. 

-Mindfulness seems to reduce many kinds of bias. 

-Meditation does have an impact on physical health—but it’s modest.  

-Meditation might not be good for everyone all the time. 

-What kind of meditation is right for you? That depends. 

-How much meditation is enough? That also depends.

The 11 separate nations of the United States

I just became aware, through an article by Matthew Speiser in The Independent, of the interesting work of Oolin Woodard that suggests that 11 distinct cultures have historically divided the US. Speiser does capsule descriptions of the nations, given the names Yankedom, New Netherland, The Midlands, Tidewater, Greater Appalachia, Deep South, El Norte, The left Coast, The Far West, New France, and First Nation. They are illustrated by the following graphic from his article:

Autopilots and metastates of our brains.

I pass on summaries from two recent contributions to understanding automatic information processing in our brains. First from Vatansever et al., work showing a role of the default mode network that has been a subject of many MindBlog posts:

Concurrent with mental processes that require rigorous computation and control, a series of automated decisions and actions govern our daily lives, providing efficient and adaptive responses to environmental demands. Using a cognitive flexibility task, we show that a set of brain regions collectively known as the default mode network plays a crucial role in such “autopilot” behavior, i.e., when rapidly selecting appropriate responses under predictable behavioral contexts. While applying learned rules, the default mode network shows both greater activity and connectivity. Furthermore, functional interactions between this network and hippocampal and parahippocampal areas as well as primary visual cortex correlate with the speed of accurate responses. These findings indicate a memory-based “autopilot role” for the default mode network, which may have important implications for our current understanding of healthy and adaptive brain processing.

Also, Vidaurre et al. describe two distinct networks, or metastates, within which the brain cycles.

We address the important question of the temporal organization of large-scale brain networks, finding that the spontaneous transitions between networks of interacting brain areas are predictable. More specifically, the network activity is highly organized into a hierarchy of two distinct metastates, such that transitions are more probable within, than between, metastates. One of these metastates represents higher order cognition, and the other represents the sensorimotor systems. Furthermore, the time spent in each metastate is subject-specific, is heritable, and relates to behavior. Although evidence of non–random-state transitions has been found at the microscale, this finding at the whole-brain level, together with its relation to behavior, has wide implications regarding the cognitive role of large-scale resting-state networks.

Detailed demographics from Google Street Views.

Interesting....neighborhood-level estimates of the racial, economic and political characteristics of 200 U.S. cities using Google Street View images of people's cars. ...From Gebru et al.:

The United States spends more than $250 million each year on the American Community Survey (ACS), a labor-intensive door-to-door study that measures statistics relating to race, gender, education, occupation, unemployment, and other demographic factors. Although a comprehensive source of data, the lag between demographic changes and their appearance in the ACS can exceed several years. As digital imagery becomes ubiquitous and machine vision techniques improve, automated data analysis may become an increasingly practical supplement to the ACS. Here, we present a method that estimates socioeconomic characteristics of regions spanning 200 US cities by using 50 million images of street scenes gathered with Google Street View cars. Using deep learning-based computer vision techniques, we determined the make, model, and year of all motor vehicles encountered in particular neighborhoods. Data from this census of motor vehicles, which enumerated 22 million automobiles in total (8% of all automobiles in the United States), were used to accurately estimate income, race, education, and voting patterns at the zip code and precinct level. (The average US precinct contains ∼1,000 people.) The resulting associations are surprisingly simple and powerful. For instance, if the number of sedans encountered during a drive through a city is higher than the number of pickup trucks, the city is likely to vote for a Democrat during the next presidential election (88% chance); otherwise, it is likely to vote Republican (82%). Our results suggest that automated systems for monitoring demographics may effectively complement labor-intensive approaches, with the potential to measure demographics with fine spatial resolution, in close to real time.

From the summary by Ingraham:

...The 22 million vehicles in the Google Street View database comprise roughly 8 percent of all vehicles in the United States...the researchers first paired the Zip code-level vehicle data with numbers on race, income and education from the U.S. Census Bureau'sAmerican Community Survey. They did this for a random 15 percent of the Zip codes in their data set to create a “training set.” They then created another algorithm to go through the training set to see how vehicle characteristics correlated with neighborhood characteristics: What kinds of vehicles are disproportionately likely to appear in white neighborhoods, or black ones? Low-income vs. high-income? Highly-educated areas vs. less-educated ones?

You can do similar exercises for other demographic characteristics, like educational attainment. People with graduate degrees were more likely to drive Audi hatchbacks with high city MPG. Those with less than a high school education, on the other hand, were more likely to drive cars made by U.S. manufacturers in the 1990s.

“We found a strong correlation between our results and ACS [American Community Survey] values for every demographic statistic we examined,” the researchers wrote. They plotted the algorithm's demographic estimates against the actual numbers from the ACS and measured their correlation coefficient: a number from zero (no correlation) to 1 (perfect correlation) that measures how accurately one set of numbers can predict the variation in a separate set of numbers.

At the city level, the algorithm did a particularly good job of predicting the percent of Asians (correlation coefficient of 0.87), blacks (0.82) and whites (0.77). It also predicted median household income (0.82) quite well. On measures of educational attainment, the correlation coefficients ran from about 0.54 to 0.70 — again, not perfect, but fairly impressive accuracy considering the predictions derived solely from auto information and nothing else.

Some morning Rachmaninoff - Fantasy Piece, in E, Op. 3. No. 3

Here is a Rachmaninoff Fantasy Piece, in E, Op. 3 No. 3, which I recorded last week, continuing to play with using my new iPhone X with a USB Zoom iQ6 condenser microphone in the lightning port for making video recordings that can be edited and then sent directly to YouTube.

Wealth inequality as a law of nature.

Here is the abstract from Scheffer et al.,  a bit of work that casts an interesting light on the current Republican tax legislation that significantly accelerates the unequal distribution of wealth in this country, as described nicely by David Leonhardt:

Significance

Inequality is one of the main drivers of social tension. We show striking similarities between patterns of inequality between species abundances in nature and wealth in society. We demonstrate that in the absence of equalizing forces, such large inequality will arise from chance alone. While natural enemies have an equalizing effect in nature, inequality in societies can be suppressed by wealth-equalizing institutions. However, over the past millennium, such institutions have been weakened during periods of societal upscaling. Our analysis suggests that due to the very same mathematical principle that rules natural communities (indeed, a “law of nature”) extreme wealth inequality is inevitable in a globalizing world unless effective wealth-equalizing institutions are installed on a global scale.

Abstract

Most societies are economically dominated by a small elite, and similarly, natural communities are typically dominated by a small fraction of the species. Here we reveal a strong similarity between patterns of inequality in nature and society, hinting at fundamental unifying mechanisms. We show that chance alone will drive 1% or less of the community to dominate 50% of all resources in situations where gains and losses are multiplicative, as in returns on assets or growth rates of populations. Key mechanisms that counteract such hyperdominance include natural enemies in nature and wealth-equalizing institutions in society. However, historical research of European developments over the past millennium suggests that such institutions become ineffective in times of societal upscaling. A corollary is that in a globalizing world, wealth will inevitably be appropriated by a very small fraction of the population unless effective wealth-equalizing institutions emerge at the global level.

Figure - Inequality in society (Left) and nature (Right). The Upper panels illustrate the similarity between the wealth distribution of the world’s 1,800 billionaires (A) (8) and the abundance distribution among the most common trees in the Amazon forest (B) (3). The Lower panels illustrate inequality in nature and society more systematically, comparing the Gini index of wealth in countries (C) and the Gini index of abundance in a large set of natural communities (D). (The Gini index is an indicator of inequality that ranges from 0 for entirely equal distributions to 1 for the most unequal situation. It is a more integrative indicator of inequality than the fraction that represents 50%, but the two are closely related in practice. Surprisingly, Gini indices for our natural communities are quite similar to the Gini indices for wealth distributions of 181 countries.)

Skill networks and human capital.

Anderson does an interesting analysis showing that workers who can combine different skills synergistically earn more than other skilled workers. I pass on both the Abstract and the Significance statements:

Significance

The relationship between worker human capital and wages is a question of considerable economic interest. Skills are usually characterized using a one-dimensional measure, such as years of training. However, in knowledge-based production, the interaction between a worker’s skills is also important. Here, we propose a network-based method for characterizing worker skill sets. We construct a human capital network, wherein nodes are skills and two skills are connected if a worker has both or both are required for the same job. We then illustrate the method by analyzing an online freelance labor market, showing that workers with diverse skills earn higher wages and that those who use their diverse skills in combination earn the highest wages of all.

Abstract

We propose a network-based method for measuring worker skills. We illustrate the method using data from an online freelance website. Using the tools of network analysis, we divide skills into endogenous categories based on their relationship with other skills in the market. Workers who specialize in these different areas earn dramatically different wages. We then show that, in this market, network-based measures of human capital provide additional insight into wages beyond traditional measures. In particular, we show that workers with diverse skills earn higher wages than those with more specialized skills. Moreover, we can distinguish between two different types of workers benefiting from skill diversity: jacks-of-all-trades, whose skills can be applied independently on a wide range of jobs, and synergistic workers, whose skills are useful in combination and fill a hole in the labor market. On average, workers whose skills are synergistic earn more than jacks-of-all-trades.

Positive stimuli blur time.

From Roberts et al.:

Anecdotal reports that time “flies by” or “slows down” during emotional events are supported by evidence that the motivational relevance of stimuli influences subsequent duration judgments. Yet it is unknown whether the subjective quality of events as they unfold is altered by motivational relevance. In a novel paradigm, we measured the subjective experience of moment-to-moment visual perception. Participants judged the temporal smoothness of high-approach positive images (desserts), negative images (e.g., of bodily mutilation), and neutral images (commonplace scenes) as they faded to black. Results revealed approach-motivated blurring, such that positive stimuli were judged as smoother and negative stimuli as choppier relative to neutral stimuli. Participants’ ratings of approach motivation predicted perceived fade smoothness after we controlled for low-level stimulus features. Electrophysiological data indicated that approach-motivated blurring modulated relatively rapid perceptual activation. These results indicate that stimulus value influences subjective temporal perceptual acuity; approach-motivating stimuli elicit perception of a “blurred” frame rate characteristic of speeded motion.

Teaching A.I. to explain itself

An awkward feature of the artificial intelligence, or machine learning, algorithms that teach themselves to translate languages, analyze X-ray images and mortgage loans, judge probability of behaviors from faces, etc., is that we are unable to discern exactly what they are doing as they perform these functions. How can we we trust these machine unless they can explain themselves? This issue is the subject of an interesting piece by Cliff Kuang. A few clips from the article:

Instead of certainty and cause, A.I. works off probability and correlation. And yet A.I. must nonetheless conform to the society we’ve built — one in which decisions require explanations, whether in a court of law, in the way a business is run or in the advice our doctors give us. The disconnect between how we make decisions and how machines make them, and the fact that machines are making more and more decisions for us, has birthed a new push for transparency and a field of research called explainable A.I., or X.A.I. Its goal is to make machines able to account for the things they learn, in ways that we can understand.

A decade in the making, the European Union’s General Data Protection Regulation finally goes into effect in May 2018. It’s a sprawling, many-tentacled piece of legislation whose opening lines declare that the protection of personal data is a universal human right. Among its hundreds of provisions, two seem aimed squarely at where machine learning has already been deployed and how it’s likely to evolve. Google and Facebook are most directly threatened by Article 21, which affords anyone the right to opt out of personally tailored ads. The next article then confronts machine learning head on, limning a so-called right to explanation: E.U. citizens can contest “legal or similarly significant” decisions made by algorithms and appeal for human intervention. Taken together, Articles 21 and 22 introduce the principle that people are owed agency and understanding when they’re faced by machine-made decisions.

To create a neural net that can reveal its inner workings...researchers...are pursuing a number of different paths. Some of these are technically ingenious — for example, designing new kinds of deep neural networks made up of smaller, more easily understood modules, which can fit together like Legos to accomplish complex tasks. Others involve psychological insight: One team at Rutgers is designing a deep neural network that, once it makes a decision, can then sift through its data set to find the example that best demonstrates why it made that decision. (The idea is partly inspired by psychological studies of real-life experts like firefighters, who don’t clock in for a shift thinking, These are the 12 rules for fighting fires; when they see a fire before them, they compare it with ones they’ve seen before and act accordingly.) Perhaps the most ambitious of the dozen different projects are those that seek to bolt new explanatory capabilities onto existing deep neural networks. Imagine giving your pet dog the power of speech, so that it might finally explain what’s so interesting about squirrels. Or, as Trevor Darrell, a lead investigator on one of those teams, sums it up, “The solution to explainable A.I. is more A.I.”

... a novel idea for letting an A.I. teach itself how to describe the contents of a picture...create two deep neural networks: one dedicated to image recognition and another to translating languages. ...they lashed these two together and fed them thousands of images that had captions attached to them. As the first network learned to recognize the objects in a picture, the second simply watched what was happening in the first, then learned to associate certain words with the activity it saw. Working together, the two networks could identify the features of each picture, then label them. Soon after, Darrell was presenting some different work to a group of computer scientists when someone in the audience raised a hand, complaining that the techniques he was describing would never be explainable. Darrell, without a second thought, said, Sure — but you could make it explainable by once again lashing two deep neural networks together, one to do the task and one to describe it.

Debussy La plus que lente - a first musical offering from Austin Texas.

This is a personal post, a musical offering of the sort I have done on MindBlog in previous years. The Steinway B that I have used since 2002 recently moved with me from Fort Lauderdale, Florida to Austin, Texas, not to the family house I moved back into, but to the larger living room of my son's home which can manage the kind of musical socials I have given for many years.  Techie MindBlog readers might be interested in my discovery that the video camera on my iPhone X is better than the Canon video camera I had been using, and that a small USB Zoom iQ6 condenser microphone attached to its Lightning connector gives audio quality comparable to the much larger C1 Studio condenser microphone whose output had to be tediously synchronized with video from the Canon camera stripped of its inferior audio sound track.

Digital mass persuasion via psychological targeting.

Sigh...we're heading full-tilt towards a plutocracy which will manipulate the masses via technologies of the sort described by Matz et al.:

Significance

Building on recent advancements in the assessment of psychological traits from digital footprints, this paper demonstrates the effectiveness of psychological mass persuasion—that is, the adaptation of persuasive appeals to the psychological characteristics of large groups of individuals with the goal of influencing their behavior. On the one hand, this form of psychological mass persuasion could be used to help people make better decisions and lead healthier and happier lives. On the other hand, it could be used to covertly exploit weaknesses in their character and persuade them to take action against their own best interest, highlighting the potential need for policy interventions.

Abstract

People are exposed to persuasive communication across many different contexts: Governments, companies, and political parties use persuasive appeals to encourage people to eat healthier, purchase a particular product, or vote for a specific candidate. Laboratory studies show that such persuasive appeals are more effective in influencing behavior when they are tailored to individuals’ unique psychological characteristics. However, the investigation of large-scale psychological persuasion in the real world has been hindered by the questionnaire-based nature of psychological assessment. Recent research, however, shows that people’s psychological characteristics can be accurately predicted from their digital footprints, such as their Facebook Likes or Tweets. Capitalizing on this form of psychological assessment from digital footprints, we test the effects of psychological persuasion on people’s actual behavior in an ecologically valid setting. In three field experiments that reached over 3.5 million individuals with psychologically tailored advertising, we find that matching the content of persuasive appeals to individuals’ psychological characteristics significantly altered their behavior as measured by clicks and purchases. Persuasive appeals that were matched to people’s extraversion or openness-to-experience level resulted in up to 40% more clicks and up to 50% more purchases than their mismatching or unpersonalized counterparts. Our findings suggest that the application of psychological targeting makes it possible to influence the behavior of large groups of people by tailoring persuasive appeals to the psychological needs of the target audiences. We discuss both the potential benefits of this method for helping individuals make better decisions and the potential pitfalls related to manipulation and privacy.

Trauma is passed over generations.

Bakalar points to work by Santavirta et al. showing that the daughters of women exposed to childhood trauma are at increased risk for psychiatric disorders. The study compared the health of female offspring of ~47,000 Finnish children who were evacuated to Swedish foster homes during World War II, with offspring of female cousins who had not been evacuated. The study:

...found that female children of mothers who had been evacuated to Sweden were twice as likely to be hospitalized for a psychiatric illness as their female cousins who had not been evacuated, and more than four times as likely to have depression or bipolar disorder...But there was no effect among male children, and no effect among children of either sex born to fathers who had been evacuated.

How is American (and World) governance evolving?

So... what is the United State to become? From the recent outpouring of Op-Ed pieces you can take your choice: Autocracy, Plutocracy, Oligarchy, Kleptocracy... with liberal democracy viewed as vitally threatened. Articles by Thomas Edsall and Andrew Sullivan describe how American democracy is destroying itself, as Roger Cohen sadly notes the irreversible passing of the Pax Americana, an ordering of the world that began with Woodrow Wilson's 14 points speech one hundred years ago. David Frum outlines steps towards Autocracy as Jonathan Rauch discusses whether Trump will be able to govern as an authoritarian. Paul Krugman notes how the current tax reform will enormously enhance the ongoing process of entrenching a hereditary plutocracy that actually runs the country.  Articles by Fareed Zakaria and Thomas Edsall describe how the liberal establishment has failed to understand its own role in the rise of contemporary conservatism, how its social and economic policies have disadvantaged formerly middle class voters more motivated by issues surrounding religion, race, and culture than they are by economics, thus fueling a rise of nationalism, nativism and xenophobia in both the U.S. and Europe.  Regarding this last point, I want to paste in here the final paragraphs of an Edsall Op-Ed piece noting Eric Schnurer's argument that blue America has over the last decade declared war on the "red way of life."

The political, economic, and cultural triumph nationwide of a set of principles and realities essentially alien to large numbers of Americans is viewed as (a) being imposed upon them, and (b) overturning much of what they take for granted in their lives — and I don’t think they’re wrong about that. I think they’ve risen in angry revolt, and now intend to give back to the “elite” in the same terms that they’ve been given to. I don’t think this is good — in fact, I think it’s a very dangerous situation — but I think we need to understand it in order to responsibly address it.

Do liberals in fact need to understand — or empathize with — their many antagonists, the men and women who are sharply critical of the liberal project?

Steven Pinker, a professor of psychology at Harvard, observes that “believers in liberal democracy have unilaterally disarmed in the defense of the institution” by agreeing in many cases with the premise of the Trump campaign: “that the country is a hopeless swamp.” This left Democrats “defenseless when he proposed to drain it.” Where, Pinker asks,

are the liberals who are willing to say that liberal democracy has worked? That environmental regulations have slashed air pollutants while allowing Americans to drive more miles and burn more fuel? That social transfers have reduced poverty rates fivefold? That globalization has allowed Americans to afford more food, clothing, TVs, cars, and air-conditioners? That international organizations have prevented nuclear war, and reduced the rate of death in warfare by 90 percent? That environmental treaties are healing the hole in the ozone layer?

Pinker remains confident:

Progress always must fight headwinds. Human nature doesn’t change, and the appeal of regressive impulses is perennial. The forces of liberalism, modernity, cosmopolitanism, the open society, and Enlightenment values always have to push against our innate tribalism, authoritarianism, and thirst for vengeance. We can even recognize these instincts in ourselves, even in Trump’s cavalier remarks about the rule of law...Over the longer run, I think the forces of modernity prevail — affluence, education, mobility, communication, and generational replacement. Trumpism, like Brexit and European populism, are old men’s movements: support drops off sharply with age.

Pinker is optimistic about the future. I hope he is right.

The problem is that even if Pinker is right, his analysis does not preclude a sustained period in which the anti-democratic right dominates American politics. There is no telling how long it will be before the movement Trump has mobilized will have run its course. Nor can we anticipate — if and when Trumpism does implode — how extensive the damage will be that Pinker’s “forces of modernity” will have to repair.

But... what if all of this wringing of hands about changes the political order is a thin veneer over deeper changes that are really going to end up controlling the show?  One is seeing now the rise of a de facto world government of interlocked and interdependent giant corporations, mainly in the U.S. and China (think Apple and Foxconn) versed in the neuroeconomic techniques central to influencing the behaviors, desires, and consumptions of their subjects.  They are assembling a level of power that might increasingly override the ability of individual nation states to contest or control their actions.  Will this ensemble nudge towards mirroring the values of liberalism currently reflected in the public stances of the largest U.S. corporations, or will the political accommodations shown by  their Asian counterparts be more likely to prevail?

Dogs can smell our happiness and fear.

From D'Aniello et al:

We report a study examining interspecies emotion transfer via body odors (chemosignals). Do human body odors (chemosignals) produced under emotional conditions of happiness and fear provide information that is detectable by pet dogs (Labrador and Golden retrievers)? The odor samples were collected from the axilla of male donors not involved in the main experiment. The experimental setup involved the co-presence of the dog's owner, a stranger and the odor dispenser in a space where the dogs could move freely. There were three odor conditions [fear, happiness, and control (no sweat)] to which the dogs were assigned randomly. The dependent variables were the relevant behaviors of the dogs (e.g., approaching, interacting and gazing) directed to the three targets (owner, stranger, sweat dispenser) aside from the dogs' stress and heart rate indicators. The results indicated with high accuracy that the dogs manifested the predicted behaviors in the three conditions. There were fewer and shorter owner directed behaviors and more stranger directed behaviors when they were in the "happy odor condition" compared to the fear odor and control conditions. In the fear odor condition, they displayed more stressful behaviors. The heart rate data in the control and happy conditions were significantly lower than in the fear condition. Our findings suggest that interspecies emotional communication is facilitated by chemosignals.

How Evil is Tech?

The title of this post is from an Op-Ed piece by David Brooks. Some clips:

There are three main critiques of big tech.

The first is that it is destroying the young. Social media promises an end to loneliness but actually produces an increase in solitude and an intense awareness of social exclusion. Texting and other technologies give you more control over your social interactions but also lead to thinner interactions and less real engagement with the world.

The second critique of the tech industry is that it is causing this addiction on purpose, to make money. Tech companies understand what causes dopamine surges in the brain and they lace their products with “hijacking techniques” that lure us in and create “compulsion loops.”

The third critique is that Apple, Amazon, Google and Facebook are near monopolies that use their market power to invade the private lives of their users and impose unfair conditions on content creators and smaller competitors. The political assault on this front is gaining steam.

The big breakthrough will come when tech executives clearly acknowledge the central truth: Their technologies are extremely useful for the tasks and pleasures that require shallower forms of consciousness, but they often crowd out and destroy the deeper forms of consciousness people need to thrive...Online is a place for human contact but not intimacy. Online is a place for information but not reflection.

Rabbi Abraham Joshua Heschel wrote that we take a break from the distractions of the world not as a rest to give us more strength to dive back in, but as the climax of living. “The seventh day is a palace in time which we build. It is made of soul, joy and reticence,” he said. By cutting off work and technology we enter a different state of consciousness, a different dimension of time and a different atmosphere, a “mine where the spirit’s precious metal can be found.”

Imagine if instead of claiming to offer us the best things in life, tech merely saw itself as providing efficiency devices. Its innovations can save us time on lower-level tasks so we can get offline and there experience the best things in life.

Imagine if tech pitched itself that way. That would be an amazing show of realism and, especially, humility, which these days is the ultimate and most disruptive technology.

Trust and cooperation across societies.

Romano et al. (open source) offer, in a study over 17 countries, an example of the kind of research needed to understand and enhance cooperation within and between groups.

Significance

In a study including 17 societies, we found that people are motivated to trust and cooperate more with their ingroup, than harm the outgroup. Reputation-based indirect reciprocity may offset this ingroup favoritism, because we found that reputational concern universally increases cooperation with both ingroup and outgroup members. We also found that people who are dispositionally cooperative are less parochial and more universal in their cooperation. In a time of increasing parochialism in both domestic and international relations, our findings affirm us of the danger of the strong human universal toward parochial altruism. Yet, our findings suggest that in all societies, there exist people whose cooperation transcends group boundaries and provides a solution to combating parochialism: reputation-based indirect reciprocity.

Abstract

International challenges such as climate change, poverty, and intergroup conflict require countries to cooperate to solve these complex problems. However, the political tide in many countries has shifted inward, with skepticism and reluctance to cooperate with other countries. Thus, cross-societal investigations are needed to test theory about trust and cooperation within and between groups. We conducted an experimental study in 17 countries designed to test several theories that explain why, who, and where people trust and cooperate more with ingroup members, compared with outgroup members. The experiment involved several interactions in the trust game, either as a trustor or trustee. We manipulated partner group membership in the trust game (ingroup, outgroup, or unknown) and if their reputation was at stake during the interaction. In addition to the standard finding that participants trust and cooperate more with ingroup than outgroup members, we obtained findings that reputational concerns play a decisive role for promoting trust and cooperation universally across societies. Furthermore, men discriminated more in favor of their ingroup than women. Individual differences in cooperative preferences, as measured by social value orientation, predicted cooperation with both ingroup and outgroup members. Finally, we did not find support for three theories about the cross-societal conditions that influence the degree of ingroup favoritism observed across societies (e.g., material security, religiosity, and pathogen stress). We discuss the implications for promoting cooperation within and between countries.

The emotional political base supporting the consolidation of the U.S. plutocracy.

I want to pass on the ending paragraphs from a piece by Fareed Zakaria:

Is it that the Republican Party is cleverly and successfully hoodwinking its supporters, promising them populism and enacting plutocratic capitalism instead? This view has been a staple of liberal analysis for years, most prominently in Thomas Frank’s book “What’s the Matter with Kansas?” Frank argued that Republicans have been able to work this magic trick by dangling social issues in front of working-class voters, who fall for the bait and lose sight of the fact that they are voting against their own interests. Both Wolf and Pierson believe that this trickery will prove dangerous for Republicans. “The plutocrats are riding on a hungry tiger,” writes Wolf.

But what if people are not being fooled at all? What if people are actually motivated far more deeply by issues surrounding religion, race and culture than they are by economics? There is increasing evidence that Trump’s base supports him because they feel a deep emotional, cultural and class affinity for him. And while the tax bill is analyzed by economists, Trump picks fights with black athletes, retweets misleading anti-Muslim videos and promises not to yield on immigration. Perhaps he knows his base better than we do. In fact, Trump’s populism might not be as unique as it’s made out to be. Polling from Europe suggests that the core issues motivating people to support Brexit or the far-right parties in France and Germany, and even the populist parties of Eastern Europe, are cultural and social.

The most important revolution in economics in the past generation has been the rise of the behavioral scientists, trained in psychology, who are finding that people systematically make decisions that are against their own “interests.” This might be the tip of the iceberg in understanding human motivation. The real story might be that people see their own interests in much more emotional and tribal ways than scholars understand. What if, in the eyes of a large group of Americans, these other issues are the ones for which they will stand up, protest, support politicians and even pay an economic price? What if, for many people, in America and around the world, these are their true interests?

A mind reading machine?

Not quite, but Matthew Hutson points to work by Wen et al. using an artificial neural network to categorize fMRI signals from subjects watching different categories of images. The algorithm could predict with about 50% accuracy which of 15 classes of visual object a subject was watching. His description:

Artificial intelligence has taken us one baby step closer to the mind-reading machines of science fiction. Researchers have developed “deep learning” algorithms—roughly modeled on the human brain—to decipher, you guessed it, the human brain. First, they built a model of how the brain encodes information. As three women spent hours viewing hundreds of short videos, a functional MRI machine measured signals of activity in the visual cortex and elsewhere. A popular type of artificial neural network used for image processing learned to associate video images with brain activity. As the women watched additional clips, the algorithm’s predicted activity correlated with actual activity in a dozen brain regions. It also helped the scientists visualize which features each area of the cortex was processing. Another network decoded neural signals: Based on a participant’s brain activity, it could predict with about 50% accuracy what she was watching (by selecting one of 15 categories including bird, airplane, and exercise). If the network had trained on data from a different woman’s brain, it could still categorize the image with about 25% accuracy, the researchers report this month in Cerebral Cortex. The network could also partially reconstruct what a participant saw, turning brain activity into pixels, but the resulting images were little more than white blobs. The researchers hope their work will lead to the reconstruction of mental imagery, which uses some of the same brain circuits as visual processing. Translating from the mind’s eye into bits could allow people to express vivid thoughts or dreams to computers or to other people without words or mouse clicks, and could help those with strokes who have no other way to communicate.

Bringing big science to psychology

Chawla describes a new initiative dubbed the "Psychological Science Accelerator" (PSA) that:

...has so far forged alliances with more than 170 laboratories on six continents in a bid to enhance the ability of researchers to collect data at multiple sites on a massive scale...to enable researchers to expand their reach and collect “large-scale confirmatory data” at many sites.

A selection committee has evaluated eight proposals and selected one based on experiments already replicated in the US and the UK.

It aims to discover whether the research findings of Alexander Todorov, a psychologist at Princeton University, can be replicated on a global scale. Todorov has reported that people rank human faces on two components: valence and dominance. Valence is a measure of trustworthiness, whereas dominance is a measure of physical strength...More than 50 of PSA’s collaborating labs have already committed to collect data as part of the study.

PSA isn’t the only effort aiming to change how researchers conduct psychological studies, which have received extensive criticism for a lack of reproducibility. Others include the Many Labs Replication Project and the Pipeline Project. Earlier this year, Chartier also launched StudySwap, an online platform designed to help researchers find collaborators for replication studies and exchange resources.