Can everyone be an Einstein?
Can everyone be an Einstein? - Times Online: Via Times Online(UK)
Science is getting ever closer to solving the complex puzzle that is the human brain. And it’s beginning to look as if there’s genius in all of us
Time to buff up your brain, to send your synapses to the spa. How about a couple of hours of sudoku? No? Well, fire up your Nintendo DS and pump up your neurons with Dr Kawashima’s Brain Training games — “Keep your brain sharp and in shape.” Nicole Kidman says she does it and she’s always right about everything. Or go on the net and test your brain out at brainmetrix.com before going for a real synapse sauna at braingle.com . Stave off senility by signing up at happy-neuron.com , massage the grey matter between your ears by joining lumosity.com (the “fast, fun and effective way to take care of your brain”), or go to sharpbrains.com to get “high-quality, research-based information and guidance to navigate the brain-training and cognitive-fitness market.” Or, better still, read a good book.
“There’s no empirical evidence that these games produce improvements,” says Nancy Andreasen, one of the world’s most distinguished neuroscientists and author of The Creative Brain. “Saying you spend half an hour a day playing sudoku and you won’t get Alzheimer’s, or playing any of these brain games and you’ll lose less grey matter than somebody who doesn’t — well, nobody has ever done that study.”
“These games definitely work because you get better at playing them,” says Earl Miller, professor of neuroscience at the Massachusetts Institute of Technology. “The big question is: do these skills generalise to normal everyday thoughts? That hasn’t been studied.”
But don’t despair: Susanne Jaeggi, a psychologist at the University of Michigan, may be able to help. She has devised a brain-training game that actually works. It’s a strange, complex game involving sequences of squares on a computer screen, and it definitely improves “fluid intelligence” — the part of your mind that deals directly with the raw newness of experience or, as defined by Jaeggi, “the ability to reason and to solve new problems independently of previously acquired knowledge”.
And there is some evidence that the games in MindFit (mindweavers.com ) do work. Baroness (Susan) Greenfield, director of the Royal Institution, says it does. Short-term memory and basic reaction time are said to be improved by 20 minutes’ play three times a week.
The brain is not, as the brain trainers like to say, a muscle. It is a 1.3-kilogram crème caramel-like mix of fat, water and proteins driven by electricity and chemicals called neurotransmitters. As far as we know, it is, unless it belongs to Kerry Katona, the most complex thing in the universe. It’s made to last, at best, about 100 years. It shrinks and deteriorates with age. By the time you’re 30 you’re probably past your intellectual peak. This is a problem, as we’re living longer and longer, and the danger is that we’ll just get stupider and stupider.
It’s a particular problem for baby-boomers, the large, rich, spoilt generation born after the second world war. They’ve had everything, they run the world, but now they’re in their fifties and sixties. They love themselves to bits. But the selves they love are just so many crème caramels soon to pass their sell-by date. Already they can see the signs. Why did you leave your phone in the freezer? Why do you lose your glasses six times a day? These are symptoms of age-associated memory impairment (AAMI). It happens to everybody, but the boomers didn’t think it would happen to them. If brain- enhancing tactics are suddenly fashionable, it’s because of boomer self-love.
Perhaps, in desperation, they’ll take supplements said to improve brain function — co-enzyme Q10, ginseng, bacopa. Or perhaps they’ll look on the bright side: the brain, though unquestionably mortal, is surprisingly resilient. We’ve known this since 4.30pm on September 13, 1848. It was at that moment than an iron rod an inch-and-a-quarter thick and 3ft 8in long was blasted through the head of an American railroad worker called Phineas P Gage. Large parts of his brain were destroyed, but his recovery was almost complete. Much about this story is controversial. But what is clear is that it inspired all subsequent investigations of the brain, from surgery to neuroscience. Gage’s survival, more or less intact, also shows the brain’s staggering ability to work around problems.
There’s one more bright spot. If we work the brain, we can grow new brain cells.
“There is a gradual growing awareness that challenging your brain can have positive effects,” says Dr Gene Cohen, director of the Center on Aging, Health & Humanities at George Washington University. “Every time you challenge your brain, it will actually modify the brain. We can indeed form new brain cells, despite a century of being told it’s impossible.”
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