brain

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Science Probes 'Senior Moments'

Researchers discover why an aging brain is prone to distraction

(Newser) - Science has found clues to why older people tend to lose their train of thought so easily: Slower internal brain communications are behind those misplaced names, words, keys, and other “senior moments,” the Wall Street Journal reports. A 200-millisecond difference in an older person’s ability to quickly...

Left-Handed Men Earn More: Study
Left-Handed
Men Earn
More: Study
Nov 29, 2008 4:27 AM CST

Left-Handed Men Earn More: Study

Southpaws struggle in school but surpass righties at work

(Newser) - Left-handed men earn an average of 5% more than right-handed men, two British and Irish studies have discovered. The studies found that southpaw males tended to do worse in school—possibly because of trouble adapting to a right-handed world—but were more successful as adults. Female lefties, however, did worse...

Jacko Needed $350K 'Mind Guru'

Bahraini prince paid consultant to help juice singer's creative process

(Newser) - The sheikh who is suing Michael Jackson says he spent nearly $350,000 on a brain guru for the star, the New York Daily News reports. Mind-mapping and motivational guru Tony Buzan spent one week with the King of Pop in an effort to unlock his creativity, thus allowing him...

Warning Labels Can Be Hazardous to Your Health

Prescription labels, doctor's cues can trigger symptoms

(Newser) - Ignorance truly is bliss when it comes to prescription drugs. The side effects listed on warning labels have a self-fulfilling quality, researchers tell the Wall Street Journal. People sensitive to this "nocebo effect" should think twice before reading that their pills can cause nausea, vomiting, irritability, or difficulty concentrating....

It's a Fine Line Between Love, Hate in the Brain

But hate appears to be a more calculating, rational emotion

(Newser) - Areas of the brain involved in hatred are also activated by love, a study suggests. Researchers took images of brain activity when subjects looked at a photo of someone they despised, ABC News reports. While not identical, the pattern of brain activation those images triggered involved some of the same...

Scientists Wipe Mouse Memories

Treatment selectively erased memories of electric shocks

(Newser) - Scientists have succeeded in blanking selected memories from the brains of mice, Reuters reports. After brain protein levels were manipulated, the mice lost the memory of an electric shock but didn't forget anything else. The researchers said it was doubtful that it would be possible—or desirable—to do the...

Even Moderate Drinking May Shrink Your Brain

Study links alcohol to brain shrinkage

(Newser) - That nightly glass of wine may be good for the heart, but apparently not for the brain. Researchers say that those who imbibe, even in moderate amounts, end up with slightly smaller brains, Health.com reports. The finding surprised scientists, who were seeking evidence that alcohol actually prevented such shrinkage....

Multitasking Can Melt Your Brain

Scientists warn of dangers of doing too much at once

(Newser) - Multitasking isn’t as productive as you may think—in fact, our brains just can’t handle it. Scientists say working on many tasks at once slows all of them down, NPR reports. “No matter how good you have become at multitasking, you’re still going to suffer hits...

Autism-Reversing Drugs Show Promise

MIT scientists stumbled onto workaround for misfiring brain system

(Newser) - MIT scientists have discovered one of the mechanisms of Fragile X Syndrome, one cause of autism, and are developing drugs to treat it, NPR reports. The disorder, triggered by a genetic mutation, interferes with the normal links between brain cells, making those networks something like a car without a brakes....

'Social Siberia' Isn't Just a Metaphor

Icy behavior cools body temperatures: study

(Newser) - Icy stares and chilly receptions can leave you feeling—well, cold. Metaphors about social behavior, like "warm welcome" and "cold shoulder," seem to relate to physical reality, new research finds. People who had experienced and recalled social rejection perceived a 5-degree temperature drop in the lab and...

Low B12 Levels Tied to Brain Shrinkage, Memory Loss

Many adults deficient in crucial nutrient

(Newser) - Vitamin B12 deficiency can cause memory loss, particularly in the elderly, reports the BBC. People short on the nutrient were 6 times more likely than individuals with normal levels to experience brain shrinkage, which is strongly linked to dementia, a new study shows. Forty percent of people are believed to...

Busy Brain May Mean Big Belly
 Busy Brain May Mean Big Belly 
Sep 5, 2008 12:50 PM CDT

Busy Brain May Mean Big Belly

(Newser) - Does thinking make us fat? Researchers say that intellectual activity just might cause us to pig out, LiveScience reports. Volunteers who performed a series of problem-solving tasks in a study consumed almost 30% more calories afterward than those who just sat around and took it easy. One theory: The body...

Brain Doesn't Remember Events—It Relives Them

Study records evidence supporting long-suspected memory pathway

(Newser) - Scientists for the first time have observed how brain cells drum up a memory, and the findings buttress the notion that our minds don't so much remember events as relive them. When recalling short film clips they had seen, patients' brains repeated the same pattern of neuron activity they experienced...

Children Can Count Without Numbers
Children Can Count Without Numbers
Aug 19, 2008 8:30 AM CDT

Children Can Count Without Numbers

Study suggests that kids have innate math abilities

(Newser) - A study sure to fan a fiery disagreement among developmental psychologists has found that children can count objects even if their language lacks words for the numbers involved. Researchers found that Australian Aboriginal children, who know words for only a few small numbers, did just as well as English-speaking children...

Staying Sharp While Aging: It Has a Price

Exercising the brain can stem tide of memory loss

(Newser) - Fighting the aging process is more about hard work than anti-wrinkle cream and hair dye, Jonah Lehrer writes in the Washington Post. The issue for most of us is not to dance like Madonna or swim like US Olympian Dara Torres; it's to remember names and places and find the...

Roots of Speech Found in Humming Fish

All vocalizing creatures share common brain circuit, researchers find

(Newser) - The songs of birds, the hums and grunts of toadfish, and the lofty speech of humans all use the same ancient brain circuit, despite an evolutionary split 400 million years ago, reports National Geographic. Researchers have discovered that the base of the hindbrain and upper spinal cord is the starting...

That Irritating Itch? It May Just Be Your Brain

In fact, our noodles could be inventing 90% of what we call real

(Newser) - A woman suffers from an itch so severe that she scratches right through to her brain—yet doctors find no medical ailment. War victims feel the sensations of a real limb—but from phantom appendages. What does it all add up to? Perhaps a new understanding of how our brains...

Brains Look Alike in Gay Men, Straight Women

Findings add to evidence that sexual orientation is innate

(Newser) - Gay men and straight women have similarly shaped brains, new research shows. Homosexual men and heterosexual women both have relatively symmetrical brains, while heterosexual men and lesbians have significantly larger right hemispheres, reports the Guardian. The research provides new evidence that sexual orientation is hardwired into the brain.

Dude! Harsh! Weed Shrinks Your Brain

Long-term smokers show abnormalities, damage to emotions

(Newser) - Heavy marijuana use over a number of years can cause significant brain abnormalities, damage memory and emotional processing, and even shrink parts of the brain, the Age reports. All cannabis smokers—not just high-risk groups such as the young and those susceptible to mental illness—can experience effects equivalent to...

New Trust Drug: Good for Shyness, Bad for Investing

Natural hormone makes people dumb with their money in experiment

(Newser) - Scientists have created a nasal spray that makes its users more trusting, the BBC reports. Made up mostly of oxytocin, alternatively nicknamed the “love hormone” or “cuddle chemical,” the spray decreases social fears by lowering activity in the amygdala. That should be great news for social phobics;...

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