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Brain surgeons are bringing artificial intelligence and new imaging techniques into the operating room, to diagnose tumors as accurately as pathologists, and much faster, according to a report in the journal Nature Medicine.

The traditional method, which requires sending the tissue to a lab, freezing and staining it, then peering at it through a microscope, takes 20 to 30 minutes or longer. The new technique takes two and a half minutes.

In addition to speeding up the process, the new technique can also detect some details that traditional methods may miss, like the spread of a tumor along nerve fibers

Twitter executives deceived federal regulators and the company’s own board of directors about “extreme, egregious deficiencies” in its defenses against hackers, as well as its meager efforts to fight spam, according to an explosive whistleblower complaint from its former security chief.

The complaint from former head of security Peiter Zatko, a widely admired hacker known as “Mudge,” depicts Twitter as a chaotic and rudderless company beset by infighting, unable to properly protect its 238 million daily users including government agencies, heads of state and other influential public figures.

Among the most serious accusations in the complaint, a copy of which was obtained by The Washington Post, is that Twitter violated the terms of an 11-year-old settlement with the Federal Trade Commission by falsely claiming that it had a solid security plan. Zatko’s complaint alleges he had warned colleagues that half the company’s servers were running out-of-date and vulnerable software and that executives withheld dire facts about the number of breaches and lack of protection for user data, instead presenting directors with rosy charts measuring unimportant changes.

Instagram’s Reels video service is designed to show users streams of short videos on topics the system decides will interest them, such as sports, fashion or humor. 

The Meta Platforms META -1.04%decrease; red down pointing triangle-owned social app does the same thing for users its algorithm decides might have a prurient interest in children, testing by The Wall Street Journal showed.

The Journal sought to determine what Instagram’s Reels algorithm would recommend to test accounts set up to follow only young gymnasts, cheerleaders and other teen and preteen influencers active on the platform.

Jimo Borjigin, a professor of neurology at the University of Michigan, had been troubled by the question of what happens to us when we die. She had read about the near-death experiences of certain cardiac-arrest survivors who had undergone extraordinary psychic journeys before being resuscitated. Sometimes, these people reported travelling outside of their bodies towards overwhelming sources of light where they were greeted by dead relatives. Others spoke of coming to a new understanding of their lives, or encountering beings of profound goodness

Borjigin didn’t believe the content of those stories was true – she didn’t think the souls of dying people actually travelled to an afterworld – but she suspected something very real was happening in those patients’ brains. In her own laboratory, she had discovered that rats undergo a dramatic storm of many neurotransmitters, including serotonin and dopamine, after their hearts stop and their brains lose oxygen. She wondered if humans’ near-death experiences might spring from a similar phenomenon, and if it was occurring even in people who couldn’t be revived

when she looked at the scientific literature, she found little enlightenment. “To die is such an essential part of life,” she told me recently. “But we knew almost nothing about the dying brain.” So she decided to go back and figure out what had happened inside the brains of people who died at the University of Michigan neurointensive care unit.

He is, on the contrary, seized by the conviction that science is beset by sloppy statistical maneuvering and, in some cases, outright fraud. He has therefore been moonlighting as a fraud-buster, developing techniques to help detect doctored data in other people’s research. Already, in the space of less than a year, he has blown up two colleagues’ careers.

In a paper called “False-Positive Psychology,” published in the prestigious journal Psychological Science, he and two colleagues—Leif Nelson, a professor at the University of California at Berkeley, and Wharton’s Joseph Simmons—showed that psychologists could all but guarantee an interesting research finding if they were creative enough with their statistics and procedures.

By going on what amounted to a fishing expedition (that is, by recording many, many variables but reporting only the results that came out to their liking); by failing to establish in advance the number of human subjects in an experiment; and by analyzing the data as they went, so they could end the experiment when the results suited them, they produced a howler of a result, a truly absurd finding. They then ran a series of computer simulations using other experimental data to show that these methods could increase the odds of a false-positive result—a statistical fluke, basically—to nearly two-thirds.

Obscurity is the idea that when information is hard to obtain or understand, it is, to some degree, safe. Safety, here, doesn't mean inaccessible. Competent and determined data hunters armed with the right tools can always find a way to get it. Less committed folks, however, experience great effort as a deterrent.

Online, obscurity is created through a combination of factors. Being invisible to search engines increases obscurity. So does using privacy settings and pseudonyms. Disclosing information in coded ways that only a limited audience will grasp enhances obscurity, too

What obscurity draws our attention to, is that while the records were accessible to any member of the public prior to the rise of big data, more effort was required to obtain, aggregate, and publish them. In that prior context, technological constraints implicitly protected privacy interests.

In learning any art the important things to learn are, first, Principles, and second, Method. This is true of the art of producing ideas. Particular bits of knowledge are nothing, because they are made up [of] so called rapidly aging facts. Principles and method are everything.

So with the art of producing ideas. What is most valuable to know is not where to look for a particular idea, but how to train the mind in the method by which all ideas are produced and how to grasp the principles which are at the source of all ideas.

Every really good creative person…whom I have ever known has always had two noticeable characteristics. First, there was no subject under the sun in which he could not easily get interested — from, say, Egyptian burial customs to modern art. Every facet of life had fascination for him. Second, he was an extensive browser in all sorts of fields of information.

Although algorithms are growing ever more powerful, fast and precise, the computers themselves are literal-minded, and context and nuance often elude them. Capable as these machines are, they are not always up to deciphering the ambiguity of human language and the mystery of reasoning.

And so, while programming experts still write the step-by-step instructions of computer code, additional people are needed to make more subtle contributions as the work the computers do has become more involved. People evaluate, edit or correct an algorithm’s work. Or they assemble online databases of knowledge and check and verify them — creating, essentially, a crib sheet the computer can call on for a quick answer. Humans can interpret and tweak information in ways that are understandable to both computers and other humans.

Even at Google, where algorithms and engineers reign supreme in the company’s business and culture, the human contribution to search results is increasing. Google uses human helpers in two ways. Several months ago, it began presenting summaries of information on the right side of a search page when a user typed in the name of a well-known person or place, like “Barack Obama” or “New York City.” These summaries draw from databases of knowledge like Wikipedia, the C.I.A. World Factbook and Freebase, whose parent company, Metaweb, Google acquired in 2010. These databases are edited by humans.

an approach developed at Stanford's Graduate School of Education that's rapidly gaining adherents across the country

trial studies of the Stanford program demonstrated that when high school students engage regularly with challenging primary source documents, they not only make significant gains learning and retaining historical material, they also markedly improve their reading comprehension and critical thinking.

Colglazier builds his thought-provoking classes using an online tool called Reading Like a Historian. Designed by the Stanford History Education Group under Professor Sam Wineburg, the website offers 87 flexible lesson plans featuring documents from the Library of Congress

. In his 2004 book, The Paradox of Choice, the psychologist Barry Schwartz indicts a society that “sanctifies freedom of choice so profoundly that the benefits of infinite options seem self-evident.” On the contrary, he argues, “a large array of options may diminish the attractiveness of what people actually choose, the reason being that thinking about the attractions of some of the unchosen options detracts from the pleasure derived from the chosen one.”

Psychologists who study relationships say that three ingredients generally determine the strength of commitment: overall satisfaction with the relationship; the investment one has put into it (time and effort, shared experiences and emotions, etc.); and the quality of perceived alternatives. Two of the three—satisfaction and quality of alternatives—could be directly affected by the larger mating pool that the Internet offers.

as the range of options grows larger, mate-seekers are liable to become “cognitively overwhelmed,” and deal with the overload by adopting lazy comparison strategies and examining fewer cues. As a result, they are more likely to make careless decisions than they would be if they had fewer options,

people who want to argue that racism is natural have tried to buttress their position with evidence that racism is in some sense biological. For example: studies have found that when whites see black faces there is increased activity in the amygdala, a brain structure associated with emotion and, specifically, with the detection of threats.

researchers report that they've performed these amygdala studies--which had previously been done on adults--on children. And they found something interesting: the racial sensitivity of the amygdala doesn't kick in until around age 14.

What's more: once it kicks in, it doesn't kick in equally for everybody. The more racially diverse your peer group, the less strong the amygdala effect. At really high levels of diversity, the effect disappeared entirely. The authors of the study write that ''these findings suggest that neural biases to race are not innate and that race is a social construction, learned over time.''

That’s what researchers in a classic study from 1998 found when they put female and male undergraduates in dressing rooms with a mirror and either swimsuits or sweaters in a range of sizes. The students were instructed to try on the assigned clothing and wear it for a while before filling out a sham evaluation of the apparel.

To confirm that they were detecting a detrimental effect of wearing a bathing suit, and not anxieties about math, researchers ran a second study. This time, instead of math questions, they used a test of the capacity for focused attention and again found that women wearing swimsuits scored lower than women wearing sweaters

In short, when young women are prompted to reflect on their physical appearance, they seem to lose intellectual focus.

As part of a lifelong experiment on circadian rhythms, Sothern, now 69, is trying to confirm or reject a widely held belief: Many people feel that time flies by more quickly as they age.

So far, Sothern's results are inconclusive

"I'm tending now to overestimate the minute more than I used to," he tells me. But then again, he had detected a similar pattern — more overestimates — in the 1990s, only to have his estimates fall in the 2000s. "Time estimation isn't a perfect science," he says.

"Most neuroscientific research has been devoted to negative symptoms — depression and addiction, instead of joy," says Donatella Marazziti, an Italian psychiatrist who has studied neurotransmitter levels in the brains of people who've recently fallen in love.

And she's found that a brain in the initial stage of love looks surprisingly like a brain experiencing a drug addiction.

This, Fisher says, explains the feeling of obsession many people experience when falling in love. "It's what gives you the elation and the craving that is basic to romantic love.

On Wednesday, the scientists at NASA kind of freaked out. They announced the discovery of some seemingly Earth-like planets outside of our solar system, a group of rocky globes they're calling 'TRAPPIST-1.'

To be completely blunt, the most exiting thing for actual scientists is that these planets are close enough that we're actually going to be able to study them – particularly when the James Webb Space Telescope launches (October 2018.) When that launches, it will have a real shot at actually taking a look at the atmospheres of these planets – or if they have atmospheres at all. So it's like a promise of future excitement

The closer the system is to our solar system – the more the star is like the Sun and the planet is like the Earth, the more likely we are to understand what we're looking at. That's what makes it exciting.

but this has come with the side effect of a toxic combination of confirmation bias and Google, enabling us to easily find a study to support whatever it is that we already believe, without bothering to so much as look at research that might challenge our position

Indeed, this is a statement oft-used by fans of pseudoscience who take the claim at face value, without applying the principles behind it to their own evidence.

at present, most published findings are likely to be incorrect.

"A MAN WITH A CONVICTION is a hard man to change. Tell him you disagree and he turns away. Show him facts or figures and he questions your sources. Appeal to logic and he fails to see your point." So wrote the celebrated Stanford University psychologist Leon Festinger (PDF), in a passage that might have been referring to climate change denial—the persistent rejection, on the part of so many Americans today, of what we know about global warming and its human causes. But it was too early for that—this was the 1950s—and Festinger was actually describing a famous case study in psychology.

The theory of motivated reasoning builds on a key insight of modern neuroscience (PDF): Reasoning is actually suffused with emotion (or what researchers often call "affect"). Not only are the two inseparable, but our positive or negative feelings about people, things, and ideas arise much more rapidly than our conscious thoughts, in a matter of milliseconds—fast enough to detect with an EEG device, but long before we're aware of it. That shouldn't be surprising: Evolution required us to react very quickly to stimuli in our environment.

In other words, when we think we're reasoning, we may instead be rationalizing. Or to use an analogy offered by University of Virginia psychologist Jonathan Haidt: We may think we're being scientists, but we're actually being lawyers (PDF). Our "reasoning" is a means to a predetermined end—winning our "case"—and is shot through with biases. They include "confirmation bias," in which we give greater heed to evidence and arguments that bolster our beliefs, and "disconfirmation bias," in which we expend disproportionate energy trying to debunk or refute views and arguments that we find uncongenial.

While researchers have known for decades that the body undergoes various metabolic and hormonal changes while it’s losing weight, the Australian team detected something new. A full year after significant weight loss, these men and women remained in what could be described as a biologically altered state. Their still-plump bodies were acting as if they were starving and were working overtime to regain the pounds they lost. For instance, a gastric hormone called ghrelin, often dubbed the “hunger hormone,” was about 20 percent higher than at the start of the study. Another hormone associated with suppressing hunger, peptide YY, was also abnormally low. Levels of leptin, a hormone that suppresses hunger and increases metabolism, also remained lower than expected. A cocktail of other hormones associated with hunger and metabolism all remained significantly changed compared to pre-dieting levels. It was almost as if weight loss had put their bodies into a unique metabolic state, a sort of post-dieting syndrome that set them apart from people who hadn’t tried to lose weight in the first place.

we need a new way of thinking about our informational milieu. What we need is a concept of infopolitics that would help us understand the increasingly dense ties between politics and information

Infopolitics encompasses not only traditional state surveillance and data surveillance, but also “data analytics” (the techniques that enable marketers at companies like Target to detect, for instance, if you are pregnant), digital rights movements (promoted by organizations like the Electronic Frontier Foundation), online-only crypto-currencies (like Bitcoin or Litecoin), algorithmic finance (like automated micro-trading) and digital property disputes (from peer-to-peer file sharing to property claims in the virtual world of Second Life)

Surveying this iceberg is crucial because atop it sits a new kind of person: the informational person. Politically and culturally, we are increasingly defined through an array of information architectures: highly designed environments of data, like our social media profiles, into which we often have to squeeze ourselves