Category: Mind & Brain

Do Screens Make Us Stupider? Time for a Rethink of Reading

By Julie Sedivy | June 17, 2014 11:30 am

reading

At the university where I teach, fewer and fewer new books are available from the library in their physical, printed form. And yet, the company that just published my textbook tells me that about 90 percent of students who buy my book choose to lug around the four-pound paper version rather than purchase the weightless e-book.

The information is exactly the same, so why would students opt for the pricier and more cumbersome version? Is the library missing something important about the nature of printed versus electronic books?

Some studies do show that information becomes more securely fixed in people’s minds when they read it from paper than when they read it from the screen (as summarized in this recent blog post). Findings like these may resonate with our subjective experience of reading, and yet still seem puzzling at an intellectual level. This is because we’re used to thinking about reading—or information processing more generally—as the metaphorical equivalent of consuming food. We talk about devouring novels, digesting a report, and absorbing information. If we’re ingesting the same material, whether it’s presented in print or electronically, how can the results be so different?

Read More

CATEGORIZED UNDER: Mind & Brain, Top Posts
MORE ABOUT: Memory & learning

Heal Yourself By Harnessing Your Mind

By Jo Marchant | May 23, 2014 10:48 am

mind harness

We tend to think of medicine as being all about pills and potions recommended to us by another person—a doctor. But science is starting to reveal that for many conditions another ingredient could be critical to the success of these drugs, or perhaps even replace them. That ingredient is nothing more than your own mind.

Here are six ways to raid your built-in medicine cabinet.

1. Better believe it

“I talk to my pills,” says Dan Moerman, an anthropologist at the University of Michigan-Dearborn. “I say, ‘Hey guys, I know you’re going to do a terrific job.’”

That might sound eccentric, but based on what we’ve learned about the placebo effect, there is good reason to think that talking to your pills really can make them do a terrific job. The way we think and feel about medical treatments can dramatically influence how our bodies respond.

Simply believing that a treatment will work may trigger the desired effect even if the treatment is inert—a sugar pill, say, or a saline injection. For a wide range of conditions, from depression to Parkinson’s, osteoarthritis and multiple sclerosis, it is clear that the placebo response is far from imaginary. Trials have shown measurable changes such as the release of natural painkillers, altered neuronal firing patterns, lowered blood pressure or heart rate and boosted immune response, all depending on the beliefs of the patient.

It has always been assumed that the placebo effect only works if people are conned into believing that they are getting an actual active drug. But now it seems this may not be true. Belief in the placebo effect itself—rather than a particular drug—might be enough to encourage our bodies to heal.

Read More

Why Superstition Works

By Joseph T. Hallinan | May 20, 2014 8:00 am

superstition

In the South Pacific there is a place so remote that few people have ever heard of it, let alone seen it: the Trobriand Islands. The Trobriands are located off the east coast of Papua New Guinea, and no white man had set foot there until the late 1700s. During World War I, however, the islands were visited by a man who would one day become a legend in the field of anthropology, Bronislaw Malinowski. Malinowski was a stork of a man—thin, pale, and balding—often seen wearing a pith helmet and socks up to his knees. He had terrible eyesight, was a hypochondriac, an insomniac, and on top of it all had a strong fear of the tropics—in particular, an abhorrence of the heat and the sultriness; to cope, he gave himself injections of arsenic.

Malinowski was, nonetheless, a keen observer of humankind. And as he watched the Trobriand Islanders go about their lives, he noticed something odd. When the islanders went fishing their behavior changed, depending on where they fished. When they fished close to shore—where the waters were calm, the fishing was consistent, and the risk of disaster was low—superstitious behavior among them was nearly nonexistent.

But when the fishermen sailed for open seas—where they were far more vulnerable and their prospects far less certain—their behavior shifted. They became very superstitious, often engaging in elaborate rituals to ensure success. In other words, a low sense of control had produced a high need for superstition. One, in effect, substituted for the other.

Read More

CATEGORIZED UNDER: Mind & Brain, Top Posts
MORE ABOUT: psychology

Talk With Your Hands? You’re Doing It Right

By Jessica Love | April 21, 2014 11:36 am

 talk with hands

This post was originally published at The American Scholar.

Gestures are simple enough. Right? A spontaneous but well-timed wave can emphasize an idea, brush aside a compliment, or point out a barely obscured bird’s nest to an obtuse friend. We use gestures to help our listeners follow along, and we make ourselves look warm and magnanimous in the process.

But on the other hand—and when you’re talking about hands, the puns come furiously—sometimes gestures seem to have nothing to do with edifying or impressing. We gesture on the phone, and in the dark, and when we talk to ourselves. Blind people gesture to other blind people. A growing body of research suggests that we gesture in part for the cognitive benefits that it affords us. Tell us not to use the letter r, or challenge us to adopt a more obscure vocabulary, and our gesture use jumps.

Read More

CATEGORIZED UNDER: Mind & Brain, Top Posts

Picking Sides: How Genes Help Us Decide Between Left and Right

By Sharon Moalem | April 15, 2014 8:30 am

genes of handedness

Some people call left-handers southpaws. Others call them mollydookers or corky dobbers. Scientists still often call lefties sinister, which in Latin originally just meant “left” but later came to be associated with evil.

Wondering about the medical implications of being born a corky dobber? It may surprise you that left-handed women were found to be twice or more likely to develop premenopausal breast cancer than right-handers. And a few researchers believe this effect may be linked to exposure to certain chemicals in utero, affecting your genes and then setting the stage for both left-handedness and cancer susceptibility, thus opening up another probability of nurture changing nature.

Goofy Feet

When it comes to our hands, feet, and even our eyes, most human beings are right-side dominant. Now, you might think that footedness and handedness are always aligned, but as it turns out that’s not always the case for right-handed people, and it’s even more infrequent for left-handed people. Lots of people aren’t congruent.

In board sports, being left-foot dominant is termed goofy – a goofy-footed surfer stands with her left foot on the back of board instead of her right. There are an amazing number of theories as to why some of us are goofy-footed. But the term itself is often said to have originated with an eight-minute long Walt Disney animated short, called Hawaiian Holiday, that was first released to theaters in 1937. The color cartoon stars the usual suspects: Mickey and Minnie, Pluto and Donald, and, of course, Goofy. During the gang’s vacation in Hawaii, Goofy attempts to surf, and when he finally catches a wave and heads back to shore atop its short-lived crest, he’s standing with his right foot forward and his left foot back.

If you’re wondering if you might be goofy and would like to find out before hitting the beach, then imagine yourself at the bottom of a staircase that you’re about to ascend. Which foot moves first? If you’re taking that first imaginary step with your left foot, then it’s likely that you’re a member of the goofy-footed club. And if you find out that you aren’t goofy, then you’re in the majority.

Read More

MORE ABOUT: genes & health

Genetic Screening to Enhance IQ Should Be Embraced

By Julian Savulescu, Monash University | March 27, 2014 8:00 am

intelligence

A version of this article originally appeared at The Conversation.

There could be a way of predicting – and preventing – which children will go on to have low intelligence, according to the findings of a study researchers at Cardiff University presented on Monday. They discovered that children with two copies of a common gene (Thr92Ala), together with low levels of thyroid hormone are four times more likely to have a low IQ. This combination occurs in about 4% of the UK population.

Importantly, if you had just one of these factors, but not both, there did not appear to be an increased risk of low intelligence. These are early results, but suggest that it might be possible to treat children early with thyroid hormone supplementation to enhance their intelligence. This raises many ethical issues.

IQ and Quality of Life

A common objection is that being smarter does not make your life better. In this study, researchers were concerned with those with an IQ between 70-85. Below 70 is classified as intellectual disability but an IQ of 70 to 75 is similar to mild intellectual disability.

Even for individuals with an IQ between 75 and 90 there are still significant disadvantages. Job opportunities tend to be the least desirable and least financially rewarding, requiring significant oversight. More than half the people with this IQ level fail to reach the minimum recruitment standards for the US military. Individuals with this lower level of intelligence are at significant risk of living in poverty (16%), being a chronic welfare dependent (17%) and dropping out of school (35%) compared to individuals with average intelligence. Studies show that they also face an increased risk of incarceration and being murdered.

Linda Gottfredson, who’s undertaken much of this research, concludes that at the very least, “an IQ of 75 is perhaps the most important threshold in modern life”. So it is clear that those of low-normal intelligence, although not classified as disabled, are significantly disadvantaged.

If we could enhance their intelligence, say with thyroid hormone supplementation, we should.

Read More

MORE ABOUT: genetics, intelligence

Turncoat Employees Reveal Their Intentions in Subtle Word Choices

By Paul Taylor, Lancaster University | February 18, 2014 1:49 pm

office email

This article was originally published on The Conversation.

Most office workers send dozens of electronic communications to colleagues in any given working day, through email, instant messaging and intranet systems. So many in fact that you might not notice subtle changes in the language your fellow employees use.

Instead of ending their email with “See ya!”, they might suddenly offer you “Kind regards.” Instead of talking about “us,” they might refer to themselves more. Would you pick up on it if they did?

These changes are important and could hint at a disgruntled employee about to go rogue. Our findings demonstrate how language may provide an indirect way of identifying employees who are undertaking an insider attack.

My team has tested whether it’s possible to detect insider threats within a company just by looking at how employees communicate with each other. If a person is planning to act maliciously to damage their employer or sneak out commercially sensitive material, the way they interact with their co-workers changes.

Read More

CATEGORIZED UNDER: Mind & Brain, Top Posts
MORE ABOUT: language, psychology

Smug Couples Patronize Singles to Feel Better About Themselves

By Guest Blogger | January 7, 2014 11:01 am

By Samantha Joel, University of Toronto

engagement ring

People tend to see their own lifestyle as being the ideal lifestyle. A single person may question why anyone would choose to shackle themselves to one partner rather than live it up with the single life. Then there is that smug married couple who pushes for other couples to also tie the knot, so they can similarly bask in wedded bliss.

This phenomenon is called “normative idealization”, which is the tendency to idealize one’s own lifestyle and believe others would benefit from it too.

Where does such insufferable behavior come from? It has been suggested that people might idealize their own relationship status not because they are actually confident that it is ideal, but rather because they are trying to feel better about their own lives.

Psychologists at Stanford University and the University of Waterloo tested whether people were more judgmental of others’ lifestyles when they felt threatened regarding their own. Their results are published in the journal Psychological Science.

Read More

CATEGORIZED UNDER: Mind & Brain, Top Posts
MORE ABOUT: psychology

The Infested Mind: An Entomologist’s Crippling Fear of Insects

By Jeffrey A. Lockwood | December 16, 2013 11:44 am

grasshopper

On July 11th 1998, my life was ominously transformed by an encounter with the once-familiar subjects of my research. Having been hired by the University of Wyoming a decade earlier to study the ecology and management of rangeland grasshoppers, I thought that I pretty much knew these insects.

I had spent that fateful morning gathering data from research plots. A week earlier, my field crew reported that to the north, where deep draws were etched into the prairie, the grasshoppers were reaching biblical proportions. I decided to see for myself.

The earthen banks rose above my head as I descended into the gulch, where the insects had massed into a bristling carpet of wings and legs. My arrival incited pandemonium. Grasshoppers ricocheted off my face, tangled their spiny legs into my hair, and began to crawl into the gaps between shirt buttons.

Read More

CATEGORIZED UNDER: Mind & Brain, Top Posts
MORE ABOUT: emotions, insects

Love in The Hunger Games: Why Katniss Falls for Peeta

By Guest Blogger | December 6, 2013 3:34 pm

By Wind Goodfriend

pscyhology

This article originally appeared on Dr. Goodfriend’s blog “A Psychologist at the Movies.”

I’m completely obsessed with The Hunger Games. I’m not sure why. Maybe it’s because I have visited North Korea, a real country where millions of people really are dying of hunger. Maybe it’s the ironic meta-experience of watching the movie’s violence on a huge screen, when the movie’s point is that people shouldn’t watch violence on a huge screen. Regardless, The Hunger Games is chock-full of possible psychological analysis. Today I’m focusing on the fascinatingly weird emotions that spark between the The Hunger Games’ two main protagonists, Peeta and Katniss.

At home, Katniss has a boyfriend, a young man named Gale. He has rugged good looks, he’s brave, and they are perfectly matched in many ways. Both Katniss and Gale fight against the system in their own way (which is increasingly seen as the trilogy continues), and he is always successful at making Katniss feel comforted in a world with no comforts.

So why does Katniss later fall for Peeta? Peeta certainly has lovable qualities – he’s smart, nurturing, and can frost a cake like nobody’s business – but he and Katniss are not exactly a natural pair. Their personalities clash, their goals in life are different, and Katniss really isn’t interested in any kind of frivolous romance. Sure, in the first movie she is ambivalent about her feelings for Peeta, the kind-hearted boy with a sexy baby-faced look. But psychology would have predicted their blossoming feelings for each other due to their experiences together in the Hunger Games. It’s all because of a phenomenon called misattribution of arousal. Read More

CATEGORIZED UNDER: Mind & Brain, Top Posts
MORE ABOUT: movies, psychology
NEW ON DISCOVER
OPEN
CITIZEN SCIENCE
ADVERTISEMENT

Discover's Newsletter

Sign up to get the latest science news delivered weekly right to your inbox!

The Crux

A collection of bright and big ideas about timely and important science from a community of experts.
ADVERTISEMENT

See More

ADVERTISEMENT
Collapse bottom bar
+

Login to your Account

X
E-mail address:
Password:
Remember me
Forgot your password?
No problem. Click here to have it e-mailed to you.

Not Registered Yet?

Register now for FREE. Registration only takes a few minutes to complete. Register now »