The rise and fall of cognitive skills. Scientists have long known that our ability to think quickly and recall information, also known as fluid intelligence, peaks around age 20 and then begins a slow decline.
However, more recent findings, including a new study from neuroscientists at MIT and Massachusetts General Hospital (MGH), suggest that the real picture is much more complex. The study, which appears in the journal Psychological Science, finds that different components of fluid intelligence peak at different ages, some as late as age 40.
Proc Nat Inst Sci: Calvin and Hobbes. September 12, 2014 Matt J.
Human cognition-affecting virus discovered. Researchers at the John Hopkins Medical School and the University of Nebraska have discovered a virus that infects our brains and "makes us more stupid.
" In a study published in the Proceedings of the National Academy of Sciences (PNAS) journal, researchers describe coming across the virus by chance, while conducting a different study altogether into throat microbes. Readers absorb less on Kindles than on paper, study finds. The whole truth. Children learn a great deal about the world from their own exploration, but they also rely on what adults tell them.
Studies have shown that children can figure out when someone is lying to them, but cognitive scientists from MIT recently tackled a subtler question: Can children tell when adults are telling them the truth, but not the whole truth? Cool Kids Lose, Though It May Take A Few Years. Hide captionAs Lindsay Lohan's character (far left) learned in the movie Mean Girls, popularity comes at a price.
The Kobal Collection As Lindsay Lohan's character (far left) learned in the movie Mean Girls, popularity comes at a price. The Power (and Peril) of Praising Your Kids. Introducing the SuperAgers - the elderly people whose brains have stayed young. They say the slow inevitable decline sets in during our early twenties.
Like a rocket reaching its apogee, once the brain is fully developed there is the briefest lull, and then it's all downhill, the last neural areas to develop being the first to start unravelling. By the time of old age, so certain are the impairments in mental processing that psychological tests are age-adjusted - "You're slow Bob, but not for your age. For an 80-year-old you're doing just fine. " But wait. The Truth About the Effect of Pregnancy on Women's Brains.
“When I was pregnant,” Guardian columnist and feminist Zoe Williams recalled in 2010 , “I managed to lose the dog's lead, between the common and the house. So I took my jumper off and tied him to that, only I forgot that I wasn't wearing a proper top underneath – I was wearing something in the region of a string vest. How could I not notice? Why was I even wearing a string vest?”. Be careful when comforting struggling students. Previous research tells us that students who see intelligence and ability as fixed will tend to give up when confronted by a difficult problem, whereas those who see intelligence as growable will persevere.
If We Feel Too Busy, It's Probably Due to Too Much Free Time: Scientific American Podcast. Objectively time is constant.
A minute is a minute. But when we have a lot to do, it usually feels like we have less time. Now a study finds an interesting wrinkle in time: when we busy ourselves with selfless tasks, time seems to expand. The work will be published the journal Psychological Science. Researchers interrupted more than 200 students in class and asked them to complete different five-minute tasks. Guitar Zero: A Neuroscientist Debunks the Myth of "Music Instinct" By Maria Popova On nature, nurture, and the neural pathways of possibility.
Are musicians born or made? Genes for Intelligence - Back to Square One. Here's a paper - soon to appear in Psychological Science - which says that Most Reported Genetic Associations with General Intelligence Are Probably False Positives The authors tried to replicate published associations between particular genetic variants (SNPs) and IQ (specifically the g factor).
They looked at three datasets, a total of about 10,000 people, and didn't confirm any of the 12 associations. As Razib Khan says in his post on this, "My hunch is that these results will be unsatisfying to many people. " I'd go further and say that no-one will be happy with these. For those who believe that IQ is purely environmental and not genetic, any satisfaction they might feel will be short lived because these authors did replicate the recent finding that genetic variants explain about 50% of the variance in IQ. Hearing about scientists' struggles helps inspire students and boosts their learning. Science suffers from an image problem. Out-of-body experience: Master of illusion. N. Larsson/AP for Nature. What Does Your Web Browser Say About Your I.Q.? (Hint: I.E. Users Won’t Like the Answer)
(iStockphoto) See ADDENDUM (8-3-11; 9:13am EDT) below A study by AptiQuant Psychometric Consulting finds that people who use Internet Explorer as their web browser are, on average, less smart than those who use other browers. The first ever experimental investigation of laughing at oneself. To be capable of laughing at oneself is usually considered a mark of good character and the foundation of a robust sense of humour.
When four is not four, but rather two plus two. When it comes to working memory, the brain’s mental sketchpad, studies have largely converged on four as the magic number: It’s how many objects average adults can successfully hold in mind at once. NERS Review of the year Part 5 – Best mind hacks. Body Under General Anesthesia Tracks Closer to Coma than Sleep. How long is a severed head conscious for? Why Do People Confess to Crimes They Didn’t Commit? The Way We Live Now - Living to Be a Parent. The Memory Doctor. - By William Saletan.
Blog Archive » …A Toast to the Host with the Least Cognitive Decline! A while ago I decided that I needed to cut back my drinking. Neuroscience Cases: The Man Who Could Not Forget « B Good Science Blog. Children in formal child care have better language skills. Tool Use and Extended Mind - The Post-Cognitivist Blog.