Posts Tagged ‘Psychology’
“Zero is powerful because it is infinity’s twin. They are equal and opposite, yin and yang.”*…

… and like infinity, zero can be a cognitive challenge. Yasemin Saplakoglu explains…
Around 2,500 years ago, Babylonian traders in Mesopotamia impressed two slanted wedges into clay tablets. The shapes represented a placeholder digit, squeezed between others, to distinguish numbers such as 50, 505 and 5,005. An elementary version of the concept of zero was born.
Hundreds of years later, in seventh-century India, zero took on a new identity. No longer a placeholder, the digit acquired a value and found its place on the number line, before 1. Its invention went on to spark historic advances in science and technology. From zero sprang the laws of the universe, number theory and modern mathematics.
“Zero is, by many mathematicians, definitely considered one of the greatest — or maybe the greatest — achievement of mankind,” said the neuroscientist Andreas Nieder, who studies animal and human intelligence at the University of Tübingen in Germany. “It took an eternity until mathematicians finally invented zero as a number.”
Perhaps that’s no surprise given that the concept can be difficult for the brain to grasp. It takes children longer to understand and use zero than other numbers, and it takes adults longer to read it than other small numbers. That’s because to understand zero, our mind must create something out of nothing. It must recognize absence as a mathematical object.
“It’s like an extra level of abstraction away from the world around you,” said Benjy Barnett, who is completing graduate work on consciousness at University College London. Nonzero numbers map onto countable objects in the environment: three chairs, each with four legs, at one table. With zero, he said, “we have to go one step further and say, ‘OK, there wasn’t anything there. Therefore, there must be zero of them.’”
In recent years, research started to uncover how the human brain represents numbers, but no one examined how it handles zero. Now two independent studies, led by Nieder and Barnett, respectively, have shown that the brain codes for zero much as it does for other numbers, on a mental number line. But, one of the studies found, zero also holds a special status in the brain…
Read on to find out the ways in which new studies are uncovering how the mind creates something out of nothing: “How the Human Brain Contends With the Strangeness of Zero,” from @QuantaMagazine.
Pair with Percival Everett’s provocative (and gloriously entertaining) Dr. No.
* Charles Seife, Zero: The Biography of a Dangerous Idea
Scheduling note: your correspondent is sailing again into uncommonly busy waters. So, with apologies for the hiatus, (R)D will resume on Friday the 25th…
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As we noodle on noodling on nothing, we might send carefully-calculated birthday greetings to Erasmus Reinhold; he was born on this date in 1511. A professor of Higher Mathematics (at the University of Wittenberg, where he was ultimately Rector), Reinhold worked at a time when “mathematics” included applied mathematics, especially astronomy– to which he made many contributions and of which he was considered the most influential pedagogue of his generation.
Reinhold’s Prutenicae Tabulae (1551, 1562, 1571, and 1585) or Prussian Tables were astronomical tables that helped to disseminate calculation methods of Copernicus throughout the Empire. That said, Reinhold (like other astronomers before Kepler and Galileo) translated Copernicus’ mathematical methods back into a geocentric system, rejecting heliocentric cosmology on physical and theological grounds. Both Reinhold’s Prutenic Tables and Copernicus’ studies were the foundation for the Calendar Reform by Pope Gregory XIII in 1582… and both made copious use of zeros.

“The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts”*…
In a recent post we considered “agnotology”—the study of ignorance. Today, John Timmer unpacks a related phenomenon…
The world is full of people who have excessive confidence in their own abilities. This is famously described as the Dunning-Kruger effect, which describes how people who lack expertise in something will necessarily lack the knowledge needed to recognize their own limits. Now, a different set of researchers has come out with what might be viewed as a corollary to Dunning-Kruger: People have a strong tendency to believe that they always have enough data to make an informed decision—regardless of what information they actually have.
The work, done by Hunter Gehlbach, Carly Robinson, and Angus Fletcher, is based on an experiment in which they intentionally gave people only partial, biased information, finding that people never seemed to consider they might only have a partial picture. “Because people assume they have adequate information, they enter judgment and decision-making processes with less humility and more confidence than they might if they were worrying whether they knew the whole story or not,” they write. The good news? When given the full picture, most people are willing to change their opinions…
[Timmer explains the experiment and runs through the particulars of the results]
… This is especially problematic in the current media environment. Many outlets have been created with the clear intent of exposing their viewers to only a partial view of the facts—or, in a number of cases, the apparent intent of spreading misinformation. The new work clearly indicates that these efforts can have a powerful effect on beliefs, even if accurate information is available from various sources…
The full PLOS One paper is here.
When given partial info, most feel confident that’s all they need to know: “People think they already know everything they need to make decisions,” from @jtimmer.bsky.social in @arstechnica.com.
* Bertrand Russell
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As we read widely, we might spare a thought for a victim of just this sort of misplaced confidence, John Scopes; he died on this date in 1970. A teacher in Dayton, Tennessee, he was prosecuted in 1925 for teaching evolution in the local high school.
… [Scopes] was accused of violating Tennessee’s Butler Act, which had made it illegal for teachers to teach human evolution in any state-funded school. The trial was deliberately staged in order to attract publicity to the small town of Dayton, Tennessee, where it was held. Scopes was unsure whether he had ever actually taught evolution, but he incriminated himself deliberately so the case could have a defendant.
Scopes was found guilty and was fined $100 (equivalent to $1,700 in 2023), but the verdict was overturned on a technicality. The trial served its purpose of drawing intense national publicity, as national reporters flocked to Dayton to cover the high-profile lawyers who had agreed to represent each side. William Jennings Bryan, three-time presidential candidate and former secretary of state, argued for the prosecution, while Clarence Darrow served as the defense attorney for Scopes. The trial publicized the fundamentalist–modernist controversy, which set modernists, who said evolution could be consistent with religion, against fundamentalists, who said the word of God as revealed in the Bible took priority over all human knowledge. The case was thus seen both as a theological contest and as a trial on whether evolution should be taught in schools…
… In 1958 the National Defense Education Act was passed with the encouragement of many legislators who feared the United States education system was falling behind that of the Soviet Union. The act yielded textbooks, produced in cooperation with the American Institute of Biological Sciences, which stressed the importance of evolution as the unifying principle of biology. The new educational regime was not unchallenged. The greatest backlash was in Texas where attacks were launched in sermons and in the press. Complaints were lodged with the State Textbook Commission. However, in addition to federal support, a number of social trends had turned public discussion in favor of evolution. These included increased interest in improving public education, legal precedents separating religion and public education, and continued urbanization in the South. This led to a weakening of the backlash in Texas, as well as to the repeal of the Butler Law in Tennessee in 1967…

“Truth does not do so much good in the world, as the appearance of it does evil”*…
Joshua Benton on the way that we handle misinformation as elections stakes rise…
… Giving someone a meaningful incentive on a mental problem can lead them to work harder and have a better chance of getting it right. That’s also true for a very specific kind of mental problem: figuring out whether to believe some random headline you see on social media….
[Benton cites several studies that conform this generalization…]
There’s a consistent thread here: If people don’t see a reason to bring their full mental capacity to bear on a question, they probably won’t. We’re lazy! But when the stakes are a little higher — when there’s a little more reason to bring our A-game — we can do better.
Let’s transfer that idea into politics. After all, there’s usually no direct reward for sussing out a fake headline in your News Feed, or for detecting when a claim about a politician edges from plausible to laughable. In day-to-day life, a single bit of political wrongness is unlikely to impact your life one whit. So why summon up the brain power?
But what if the stakes were suddenly higher — say, just hypothetically, if it was a presidential election season and the country is being presented with two wildly different potential futures? Would people then summon up more of their mental capacity to separate good information from bad? Pundits have long said most voters only “get serious” about an election a few weeks before the big day — maybe that new seriousness might mean a stricter adherence to the facts?
That’s one of the issues addressed by a new paper by Charles Angelucci, Michel Gutmann, and Andrea Prat — of MIT, Northwestern, and Columbia, respectively. Its title is “Beliefs About Political News in the Run-up to an Election“; here’s the abstract, emphasis mine:
This paper develops a model of news discernment to explore the influence of elections on the formation of partisan-driven parallel information universes. Using survey data from news quizzes administered during and outside the 2020 U.S. presidential election, the model shows that partisan congruence’s impact on news discernment is substantially amplified during election periods. Outside an election, when faced with a true and a fake news story and asked to select the most likely true story, an individual is 4% more likely to choose the true story if it favors their party; in the days prior to the election, this increases to 11%.
Did you catch that? People aren’t more likely to evaluate accuracy correctly during the fever pitch of an election season — they’re less likely, and by a meaningful margin…
[Benton explains the methodology of the study and explores some examples of it more specific findings…]
… In a sense, it all comes down to what you mean by “high stakes.” Yes, a presidential election is high stakes for the country at large. But believing something that supports your ideological priors is high stakes for your ego — especially at the height of an all-consuming campaign. Our brains want to believe the best about our side and the worst about the other. And it seems that overrides any extra incentive for accuracy at the moment our votes matter most…
“Are people more likely to accurately evaluate misinformation when the political stakes are high? Haha, no,” from @jbenton and @NiemanLab.
* François de la Rochefoucauld, Maximes
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As we think, we might spare a thought for Andrew Russell “Drew” Pearson; he died on this date in 1969. A journalist known for his long-running column, “Washington Merry-Go-Round.”
At the time of Pearson’s death (of a heart attack) in Washington, D.C., the column was syndicated to more than 650 newspapers, more than twice as many as any other, with an estimated 60 million readers, who devoured the investigative and “insider”-centered approach to political coverage that Pearson pioneered– and that has become the milieu for the misinformation discussed above. A Harris Poll commissioned by Time magazine at that time showed that Pearson was America’s best-known newspaper columnist. The column was continued by Jack Anderson and then by Douglas Cohn and Eleanor Clift, who combine commentary with historical perspectives. It is the longest-running syndicated column in America.

“The worst part about having a mental illness is people expect you to behave as if you don’t”*…
Trends across all causes and risks of disease/disability show that there have been substantial declines in infectious diseases, malnutrition, cardiovascular diseases, and several cancers. But even as we make strides in addressing physical health, mental health challenges are on the rise. In sharp contrast, mental health disorders and alcohol-related disability adjusted life years (DALYS) have increased sharply over the last few decades, especially among people aged 25 to 74.
The WHO found that the two most common mental disorders, anxiety and depression, cost global GDP
$1 trillion in 2010. Lost output for the same time period attributed to mental, neurological, and substance
abuse disorders – which often intersect – was estimated between $2.5-$8.5 trillion. This is expected to double by 2030.
A report from the Aspen Institute and Dalberg explores the global rise of mental illness through economics, lived experiences, and expert insights…
According to the World Health Organization (WHO), 450 million people suffer from some form of mental illness over the course of their lives. So, it’s no surprise that many of us have experienced, or know some-one who has experienced, severe struggles with mental health. This is a full-blown crisis exacerbated by a lack of infrastructure, lack of funding, and a lack of health equity. This is despite the fact that mental health issues are the leading cause of disability globally. Also, according to the WHO, mental health conditions are the primary cause of suicide. And suicide is the second leading cause of death for people age 15to 29. This is a crisis of our time.
In this report, we offer a snapshot into both the magnitude and the scope of the mental health crisis facing humanity. In addition to briefly framing the issues, we share summaries of dozens of interviews we held with both “expert practitioners” working both in the public and private sectors and individuals with a “lived experience” touched by mental health struggles.
In the course of our work, we looked for recurring themes that could promote a dialogue about seeking sustainable, scalable solutions to the crisis. Among those themes are the challenges of building an infrastructure for access to quality mental healthcare, the continued lack of parity between the provision of services for mental health versus physical health, and the pervasiveness of stigma associated with diseases of the mind.
Further, although most of us do not think of mental health as related to investing, and if we do, we might find the notion distasteful, there are indeed a growing number of developing technologies and treatment modalities that hold promise for expanding access to mental health services and offering innovative practices. We highlight a handful of examples. The individuals who generously shared their personal struggles also shared the resources and practices that they found most helpful.
We acknowledge the global nature of the crisis and the role that both the pandemic and other contextual factors have played in substantial increases in anxiety disorders and other mental health issues. Further, we are seeing increases in specific demographics, such as poorer mental health among women, with one in five women experience a more common mental disorder (such as anxiety or depression), compared with one in eight men. No demographic is immune.
Given the crisis at hand, it is our hope that offering greater transparency to the world of mental health will stimulate a search for solutions…
Bracing– but important– reading: “A Crisis of Our Time.”
(Image above from a series of photos illustrating mental illness, from Christian Sampson.)
* from the notebook of Arthur Fleck (AKA, The Joker), via Todd Phillips 2019 film Joker
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As we care about care, we might recall that it was on this date in 2019 that the first presentation print of Todd Phillip’s film Joker was shipped to Italy, where it premiered at the Venice International Film Festival and won the Golden Lion, the fest’s top prize. The film went on to box office success and set records for an October release. It grossed over $1 billion; the first R-rated to do so. It received numerous accolades, including two Academy Award wins at the 92nd Academy Awards for Best Actor (Joaquin Phoenix) & Best Original Score (Hildur Guðnadóttir) out of 11 nominations including Best Picture, first DC film to score.







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