How Wim Hof, "The Iceman," withstands such extreme temperatures

Dutch extreme athlete Wim Hof is known for chilly feats like the world's longest ice bath and climbing Mount Kilimanjaro in just a pair of shorts. (Hof is the subject of the recent New York Times bestseller "What Doesn't Kill Us: How Freezing Water, Extreme Altitude, and Environmental Conditioning Will Renew Our Lost Evolutionary Strength" by Scott Carney.) Now, researchers from Wayne State University’s School of Medicine recently used an MRI scanner to explore the science behind Hof's dangerous stunts. From Smithsonian:

Hof attributes his success to what he has dubbed the Wim Hof Method, a type of conditioning that involves a series of breathing exercises he says anyone can replicate. Rather than by luck or accident, Hof says he learned his technique by trial and error while going out into nature: “I had to find the interconnection of my brain together with my physiology...."

Musik found that, when exposed to cold, Hof activates a part of the brain that releases opioids and cannabinoids into the body. These components can inhibit the signals responsible for telling your body you are feeling pain or cold, and trigger the release of dopamine and serotonin. The result, Musik says, is a kind of euphoric effect on the body that lasts for several minutes.

“Your brain has the power to modify your pain perception,” he says, adding that this mechanism is particularly important for human survival. Pain, and the feeling of cold, are basically your body’s way of telling you something is wrong.

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Secret history of classic TV's laugh tracks

When I watched the Brady Bunch as a youngster, there was one particular deep guffaw that always caught my attention. I knew the laughs were pre-recorded but always assumed that there was just a laugh track tape and they'd press play at the appropriate times. I liked (and still like) the faux communal experience that laugh tracks provide when watching the Bradys, Bewitched, the Beverly Hillbillies, and other great vintage sitcoms from the 1960s an early 1970s.

Turns out, that the rise of the laugh track was due to Charles Douglass (1910-2003), a Navy-trained electronics engineer/maker who went on to build a custom "Laff Box" of several dozen tape loops triggered by keys and dials. After its initial use on the Jack Benny Program, the machine, officially called the "Audience Reaction Duplicator," took the TV industry by storm. Douglass "played" the Laff Box like a proto-sampler and for years had the monopoly on TV laugh tracks. It was a process that the TV show producers and Douglass himself liked to keep secret.

It wasn't until 1992 that Douglass and his pioneering work at the intersection of media, psychology, and technology was recognized with a lifetime Emmy award for technical achievement.

For the whole story on Douglass and the Laff Box, don't miss this episode of the Decoder Ring podcast.

And here is an Antiques Roadshow segment appraising a Laff Box.

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MDMA can help treat PTSD, yet another study shows

The active ingredient in Ecstasy, MDMA, is safe and can help to treat post-traumatic stress disorder, a new clinical psychotherapy trial shows. Read the rest

Why humans are so enchanted with cats

We think cats are our pets but we are mistaken. The New Yorker interviews Abigail Tucker, author of The Lion in the Living Room: How House Cats Tamed Us and Took Over the World:

She explains how “cats domesticated themselves”—essentially by choosing proximity to people as their survival strategy—and then proceeded to infect one in three humans on Earth with a parasite called Toxoplasma gondii, which affects our behavior in ways that are still not entirely understood, although there is speculation that one of the symptoms might be an attraction to cats. Scientists estimate that there could be as many as a billion cats in the world, and their number continues to grow. So, if you feel like you live under your cat’s paw, you might as well get used to it. As Tucker says, “We’re never going to get control over these animals.”

(The New Yorker) Read the rest

Why swearing can be a good fucking way to sound convincing

Emma Byrne, a science writer and artificial intelligence researcher, has just published a new book called Swearing is Good for You: The Amazing Science of Bad Language and it sounds fucking great. "If you ask people what they think about swearing, they tend to insist that it diminishes the speaker’s credibility and persuasiveness—-especially if the speaker is a woman," Byrne writes. But actually, a presenter's swears can sometimes make them damn more convincing. From Smithsonian:

In the book, Byrne cites one study that examined the rhetorical effects of swearing on an audience that was already sympathetic to the speaker’s message. For the study, psychologists Cory Scherer of Penn State University and Brad Sagarin from Northern Illinois University showed videotaped speeches to 88 undergraduate students. Participants listened to one of three different versions of a speech about lowering tuition rates at a university—one with no swearing, one that had a “damn” thrown in the middle, and one that opened with a “damn.” The rest of the speech was unchanged.

“The students who saw the video with the swearing at the beginning or in the middle rated the speaker as more intense, but no less credible, than the ones who saw the speech with no swearing,” Byrne summarizes in her book. “What’s more, the students who saw the videos with the swearing were significantly more in favor of lowering tuition fees after seeing the video than the students who didn’t hear the swear word.”

Byrne delineates between what she calls propositional swearing, which is deliberate and planned, and non-propositional swearing, which can happen when we’re surprised, or among friends or confidants.

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What is the slowest music humanly possible?

While the typical answer is 33 beats per minute, musician Adam Neely's answer morphs into a great primer on the "perceptual present," a concept widely discussed in both the philosophy of music and of consciousness. Read the rest

Why incompetent people think they're amazing

People have a tendency towards "illusory superiority," that is, they imagine themselves to be better than others. Interestingly, the more incompetent you are, the more superior you feel. It comes down to the fact that people who are bad at something "lack the very expertise needed to recognize how badly they're doing." This phenomenon is known as the Dunning-Kruger effect, and is explained in this TED-Ed video.

[via Open Culture] Read the rest

Scientist builds remote-controlled collapsing chair to study fear in people

At the University of Chicago in the early 1920s, psychology grad student William Blatz built a remote-controlled trick chair that would collapse when he pressed a switch. (It was padded to avoid injury.) Then he had subjects sit in the chair while wearing electrodes to measure heart rate and other vital signs. Blatz's goal was to "study the physiology of fear under controlled, repeatable conditions." I think he also probably just wanted to build a remote-controlled trick chair. From Weird Universe:

Blatz offered this description of their reactions:

"The observations of the subjects after the fall, of course, varied, but they were sufficiently in agreement to indicate the arousal of genuine fear in naive subjects. Some examples of these remarks were, 'startled,' 'surprised,' 'frightened,' scared,' etc. In most cases the subjects cried out, and some called the experimenter by name. They all made some effort to escape, thinking an accident had happened. In all cases they acknowledged that they had not anticipated 'anything like it at all.' From these statements, it was concluded that the stimulus was wholly unexpected, and unsuspected."

The electrodes registered the effect of the fright. The hearts of the subjects began hammering, and their breathing rapidly increased. Blatz also observed "striking changes in the electrical conditions of the body in the nature of an increased development of the electromotive force."

"Dr. Blatz’s Trick Chair of Terror" (Weird Universe) Read the rest

Algorithms analyze brain scans to identify people with suicidal thoughts

In a small-scale study, researchers have shown that algorithms can analyze brain scans to determine whether an individual has suicidal thoughts. During the study, the University of Pittsburgh and Carnegie Mellon University scientists mentioned words like "death," "trouble," and "carefree" to individuals undergoing fMRI scans of their brains. Apparently those kinds of words spur different brain activity in people who have suicidal thoughts compared to those who don't. The hope is that a better understanding of brain function in suicidal people could lead to better tests to assess risk of suicide and improved psychotherapy. From IEEE Spectrum:

For the study, the researchers recruited 34 volunteers between the ages of 18 and 30—half of them at risk, and the other half not at risk, of suicide. They showed the participants a series of words related to positive and negative facets of life, or words related to suicide, and asked them to think about those words.

Then the researchers recorded, with fMRI, the cerebral blood flow in the volunteers as they thought about those words, and fed the data to the algorithms, indicating which volunteers were at risk of suicide and which weren’t. The algorithms then learned what the neural signatures in the brain of a suicidal person tend to look like.

Then they tested the algorithms by giving them new neural signatures to see how well they could predict, based on learning from other subjects, whether someone was suicidal or not. The classifier did it with 91% accuracy. Separately, the classifier was able to identify, with 94% accuracy, which volunteers had actually made an attempt at suicide, versus having only thought about it.

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New gamblers who see a short video about slot-machine psychology don't get tricked

Video slot machines pull a lot of tricks to make it hard to tell how fair the game is; one of them is to ring up "wins" that are actually losses (you put in $1 and get $0.75 back, say), with a lot of fanfare and hoo-rah. These tricks are calculated to hook players into the game by stimulating their reward centers with intermittent stimulus, a powerfully addictive combination. Read the rest

Some thoughts on whether intelligence is linked to anxiety and depression

In High intelligence: A risk factor for psychological and physiological overexcitabilities, a group of academic and industry neuroscientists survey a self-selected group of 3,715 MENSA members about their mental health history and find a correlation between high IQ and clinical anxiety and depression disorders, an effect they attribute to "overexitabilities" -- "the same heightened awareness that inspires an intellectually gifted artist to create can also potentially drive that same individual to withdraw into a deep depression." Read the rest

Psychological asymmetry - why we feel lonley and odd

This new video from the School of Life present the concept of psychological asymmetry, and why we aren't as odd or special as we might think.

The solutions to psychological asymmetry lie in two places -- art and love art provides us with accurate portrayals of the inner lives of strangers, and with grace and compelling charm shows us how much they share in troubles and hopes we thought we might be alone in experiencing. And love gives us an occasional deeply precious sense of security to reveal who we really are to another person and the opportunity to learn about their reality from a position of extreme secure proximity. To overcome the effects of psychological asymmetry we must constantly trust, especially in the absence of any evidence, that everyone is likely to be far closer to what we are -- that is, far shyer more scared more worried and more incomplete than they are to resemble the personas they show to the world.

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Trump and the psychology of doom and gloom

Even if people are content with their own lives, their "a collectively shared sense of doom and gloom about society" is a major influence on their "decisions about divisive societal issues, such as voting for extremist parties" and Trump, according to psychological research from the University of Groningen, the Netherlands, and elsewhere. From Scientific American:

Commentators have argued that people voted for Trump because of economic anxiety, negative attitudes toward immigration, religion and race, and “a class rebellion against educated elitists.” While many of these insights may contribute to an explanation, they do not reveal the whole story. For instance, the popular belief that Trump’s voters were mainly working class turns out to be inaccurate.

Instead, new psychological research suggests that it is not necessarily citizens’ personal (dis)content with their lives that matters as much as the perceived Zeitgeist of our time: a powerful shared feeling that society is taking a turn for the worse...

Recent research has found a way to capture, at least in part, the “spirit of the time.” We proposed that while Zeitgeist was originally a concept used by philosophers, it essentially describes a psychological experience. As such, in its broadest sense, the Zeitgeist can be defined as a collection of shared values, attitudes, norms, and ideas that exist within a society at a certain time. Measuring such a general phenomenon is difficult, but we found a way to capture the one aspect we were specifically interested in: our collectively shared awareness about the state of society, which currently is characterized by a sense of doom and gloom.

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People buy products with faces to stop from feeling so lonely

People prefer products that have faces on the packaging, especially when they are lonely, according to a study published online this month in the European Journal of Social Psychology.

From University of Oregon:

This finding, published online this month in the European Journal of Social Psychology, is rooted in people’s fundamental need to belong and their desire to form and sustain relationships. When humans lack these social connections, they often attempt to fill the void in other ways, including through their purchasing habits.

“Previous research linked our need for social connection with consumer behavior and judgment, but very little was understood about the role that visuals play in social connection and brand likability,” [Prof. Dr. Ulrich] Orth explained. “Our study builds on prior research by demonstrating that seeing a face in a brand visual increases a consumer’s liking of the brand, especially if they feel lonely.”

To be effective, the face on the label does not need to be as obvious as the one smiling back at [University of Oregon professor Bettina] Cornwell from the bag of potato chips in the hotel gift shop. Consumers often imagine humanlike characteristics in nonhuman visuals, a process also known as anthropomorphism. Orth explains that loneliness can enhance people’s tendency to exhibit this kind of “wishful seeing” and is most apparent in the case of faces.

“A lack of interpersonal relationships motivates people to actively search for sources of connection,” Cornwell said. “Individuals who are lonely are more likely to find faces in visuals because they so greatly desire this social connection.”

Image: Kevin Harber/Flickr Read the rest

Great deal on book about cognitive biases: You Are Not So Smart -- $2 Kindle edition

If you like David McRaney's You Are Not So Smart podcast, which explores human psychology in all its quirkiness, I think you'll enjoy his book, You Are Not So Smart: Why You Have Too Many Friends on Facebook, Why Your Memory Is Mostly Fiction, and 46 Other Ways You're Deluding Yourself.

You believe you are a rational, logical being who sees the world as it really is, but journalist David McRaney is here to tell you that you're as deluded as the rest of us. But that's OK- delusions keep us sane. You Are Not So Smart is a celebration of self-delusion. It's like a psychology class, with all the boring parts taken out, and with no homework.

Based on the popular blog of the same name, You Are Not So Smart collects more than 46 of the lies we tell ourselves everyday, including:

Dunbar's Number - Humans evolved to live in bands of roughly 150 individuals, the brain cannot handle more than that number. If you have more than 150 Facebook friends, they are surely not all real friends.

Hindsight bias - When we learn something new, we reassure ourselves that we knew it all along.

Confirmation bias - Our brains resist new ideas, instead paying attention only to findings that reinforce our preconceived notions.

Brand loyalty - We reach for the same brand not because we trust its quality but because we want to reassure ourselves that we made a smart choice the last time we bought it.

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Religious leaders tripping balls... for science

Psychologists at Johns Hopkins University are currently giving two dozen religious leaders psilocybin, the psychedelic drug in magic mushrooms, to, y'know, see what happens. From The Guardian:

Despite most organised religions frowning on the use of illicit substances, Catholic, Orthodox and Presbyterian priests, a Zen Buddhist and several rabbis were recruited. The team has yet to persuade a Muslim imam or Hindu priest to take part, but “just about all the other bases are covered,” according to (study co-leader Dr. William) Richards....

“It is too early to talk about results, but generally people seem to be getting a deeper appreciation of their own religious heritage,” he said. “The dead dogma comes alive for them in a meaningful way. They discover they really believe this stuff they’re talking about.”

There is also a suggestion that after their psychedelic journey, the leaders’ notions of religion shifted away from the sectarian towards something more universal. “They get a greater appreciation for other world religions. Other ways up the mountain, if you will,” said Richards.

“In these transcendental states of consciousness, people seem to get to levels of consciousness that seem universal,” he added. “So a good rabbi can encounter the Buddha within him.”

"Religious leaders get high on magic mushrooms ingredient – for science" (The Guardian) Read the rest

Here’s why people hate the word “moist”

Mashable explains why so many people can’t stand the word “moist.” It turns out it has to do with both word association and the bandwagon effect. Read the rest

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