AI
Saturday, January 01, 2011 6:56:15 PM
This Year, Change Your Mind
Valero Doval
By OLIVER SACKS
Published: December 31, 2010
NEW Year’s resolutions often have to do with eating more healthfully, going to the gym more, giving up sweets, losing weight — all admirable goals aimed at improving one’s physical health. Most people, though, do not realize that they can strengthen their brains in a similar way.
While some areas of the brain are hard-wired from birth or early childhood, other areas — especially in the cerebral cortex, which is central to higher cognitive powers like language and thought, as well as sensory and motor functions — can be, to a remarkable extent, rewired as we grow older. In fact, the brain has an astonishing ability to rebound from damage — even from something as devastating as the loss of sight or hearing. As a physician who treats patients with neurological conditions, I see this happen all the time.
For example, one patient of mine who had been deafened by scarlet fever at the age of 9, was so adept at lip-reading that it was easy to forget she was deaf. Once, without thinking, I turned away from her as I was speaking. “I can no longer hear you,” she said sharply.
“You mean you can no longer see me,” I said.
“You may call it seeing,” she answered, “but I experience it as hearing.”
Lip-reading, seeing mouth movements, was immediately transformed for this patient into “hearing” the sounds of speech in her mind. Her brain was converting one mode of sensation into another.
In a similar way, blind people often find ways of “seeing.” Some areas of the brain, if not stimulated, will atrophy and die. (“Use it or lose it,” neurologists often say.) But the visual areas of the brain, even in someone born blind, do not entirely disappear; instead, they are redeployed for other senses. We have all heard of blind people with unusually acute hearing, but other senses may be heightened, too.
For example, Geerat Vermeij, a biologist at the University of California-Davis who has been blind since the age of 3, has identified many new species of mollusks based on tiny variations in the contours of their shells. He uses a sort of spatial or tactile giftedness that is beyond what any sighted person is likely to have.
The writer Ved Mehta, also blind since early childhood, navigates in large part by using “facial vision” — the ability to sense objects by the way they reflect sounds, or subtly shift the air currents that reach his face. Ben Underwood [ http://www.benunderwood.com/ ], a remarkable boy who lost his sight at 3 and died at 16 in 2009, developed an effective, dolphin-like strategy of emitting regular clicks with his mouth and reading the resulting echoes from nearby objects. He was so skilled at this that he could ride a bike and play sports and even video games.
People like Ben Underwood and Ved Mehta, who had some early visual experience but then lost their sight, seem to instantly convert the information they receive from touch or sound into a visual image — “seeing” the dots, for instance, as they read Braille with a finger. Researchers using functional brain imagery have confirmed that in such situations the blind person activates not only the parts of the cortex devoted to touch, but parts of the visual cortex as well.
One does not have to be blind or deaf to tap into the brain’s mysterious and extraordinary power to learn, adapt and grow. I have seen hundreds of patients with various deficits — strokes, Parkinson’s and even dementia — learn to do things in new ways, whether consciously or unconsciously, to work around those deficits.
That the brain is capable of such radical adaptation raises deep questions. To what extent are we shaped by, and to what degree do we shape, our own brains? And can the brain’s ability to change be harnessed to give us greater cognitive powers? The experiences of many people suggest that it can.
One patient I knew became totally paralyzed overnight from a spinal cord infection. At first she fell into deep despair, because she couldn’t enjoy even little pleasures, like the daily crossword she had loved.
After a few weeks, though, she asked for the newspaper, so that at least she could look at the puzzle, get its configuration, run her eyes along the clues. When she did this, something extraordinary happened. As she looked at the clues, the answers seemed to write themselves in their spaces. Her visual memory strengthened over the next few weeks, until she found that she was able to hold the entire crossword and its clues in her mind after a single, intense inspection — and then solve it mentally. She had had no idea, she later told me, that such powers were available to her.
This growth can even happen within a matter of days. Researchers at Harvard found, for example, that blindfolding sighted adults for as few as five days could produce a shift in the way their brains functioned: their subjects became markedly better at complex tactile tasks like learning Braille.
Neuroplasticity — the brain’s capacity to create new pathways — is a crucial part of recovery for anyone who loses a sense or a cognitive or motor ability. But it can also be part of everyday life for all of us. While it is often true that learning is easier in childhood, neuroscientists now know that the brain does not stop growing, even in our later years. Every time we practice an old skill or learn a new one, existing neural connections are strengthened and, over time, neurons create more connections to other neurons. Even new nerve cells can be generated.
I have had many reports from ordinary people who take up a new sport or a musical instrument in their 50s or 60s, and not only become quite proficient, but derive great joy from doing so. Eliza Bussey, a journalist in her mid-50s who now studies harp at the Peabody conservatory in Baltimore, could not read a note of music a few years ago. In a letter to me, she wrote about what it was like learning to play Handel’s “Passacaille”: “I have felt, for example, my brain and fingers trying to connect, to form new synapses. ... I know that my brain has dramatically changed.” Ms. Bussey is no doubt right: her brain has changed.
Music is an especially powerful shaping force, for listening to and especially playing it engages many different areas of the brain, all of which must work in tandem: from reading musical notation and coordinating fine muscle movements in the hands, to evaluating and expressing rhythm and pitch, to associating music with memories and emotion.
Whether it is by learning a new language, traveling to a new place, developing a passion for beekeeping or simply thinking about an old problem in a new way, all of us can find ways to stimulate our brains to grow, in the coming year and those to follow. Just as physical activity is essential to maintaining a healthy body, challenging one’s brain, keeping it active, engaged, flexible and playful, is not only fun. It is essential to cognitive fitness.
Oliver Sacks is the author of “The Mind’s Eye.”
© 2011 The New York Times Company
http://www.nytimes.com/2011/01/01/opinion/01sacks.html [ http://www.nytimes.com/2011/01/01/opinion/01sacks.html?pagewanted=all ]
---
(items linked in) http://investorshub.advfn.com/boards/read_msg.aspx?message_id=26706638 and preceding and following
=====
Primero Hay Que Aprender Español. Ranhou Zai Xue Zhongwen.
By NICHOLAS D. KRISTOF
Published: December 29, 2010
A quiz: If a person who speaks three languages is trilingual, and one who speaks four languages is quadrilingual, what is someone called who speaks no foreign languages at all?
Answer: an American.
Yet these days, we’re seeing Americans engaged in a headlong and ambitious rush to learn Chinese — or, more precisely, to get their kids to learn Chinese. Everywhere I turn, people are asking me the best way for their children to learn Chinese.
Partly that’s because Chinese classes have replaced violin classes as the latest in competitive parenting, and partly because my wife and I speak Chinese and I have tortured our three kids by trying to raise them bilingual. Chinese is still far less common in schools or universities than Spanish or French, but it is surging and has the “cool factor” behind it — so public and private schools alike are hastening to add Chinese to the curriculum.
In New York City alone, about 80 schools offer Chinese, with some programs beginning in kindergarten. And let’s be frank: If your child hasn’t started Mandarin classes by third grade, he or she will never amount to anything.
Just kidding. In fact, I think the rush to Chinese is missing something closer to home: the paramount importance for our children of learning Spanish.
Look, I’m a fervent believer in more American kids learning Chinese. But the language that will be essential for Americans and has far more day-to-day applications is Spanish. Every child in the United States should learn Spanish, beginning in elementary school; Chinese makes a terrific addition to Spanish, but not a substitute.
Spanish may not be as prestigious as Mandarin, but it’s an everyday presence in the United States — and will become even more so. Hispanics made up 16 percent of America’s population in 2009, but that is forecast to surge to 29 percent by 2050, according to estimates by the Pew Research Center.
As the United States increasingly integrates economically with Latin America, Spanish will become more crucial in our lives. More Americans will take vacations in Latin America, do business in Spanish, and eventually move south to retire in countries where the cost of living is far cheaper.
We’re already seeing growing numbers of Americans retire in Costa Rica, drawn by weather and lifestyle as well as low costs and good health care. We’ll also see more and more little bits of Florida that just happen to be located in Mexico, Panama or Dominican Republic.
Another reason to bet on Spanish is that Latin America is, finally, getting its act together. Of all regions of the world, it was arguably Latin America that rode the recent economic crisis most comfortably. That means that Spanish study does more than facilitate piña coladas on the beach at Cozumel. It’ll be a language of business opportunity in the coming decades. We need to turn our competitive minds not only east, but also south.
Moreover, Spanish is easy enough that kids really can emerge from high school with a very useful command of the language that they will retain for life, while Mandarin takes about four times as long to make the same progress. Chinese has negligible grammar — no singular or plural, no verb conjugations, no pesky masculine and feminine nouns — but there are thousands of characters to memorize as well as the landmines of any tonal language.
The standard way to ask somebody a question in Chinese is “qing wen,” with the “wen” in a falling tone. That means roughly: May I ask something? But ask the same “qing wen” with the “wen” first falling and then rising, and it means roughly: May I have a kiss?
That’s probably why trade relations are so strained between our countries. Our negotiators think they’re asking questions about tariffs, and the Chinese respond indignantly that kissing would be inappropriate. Leaving both sides confused.
In effect, Chinese is typically a career. Spanish is a practical add-on to your daily life, meshing with whatever career you choose. If you become a mechanic, you’ll be able to communicate better with some customers. If you’re the president, you’ll campaign more effectively in Texas and Florida.
China will probably be the world’s largest economy within our children’s lifetimes and a monumental force in every dimension of life. Studying Chinese gives you insight into one of the world’s great civilizations and creates a wealth of opportunities — plus, it’ll be a godsend if you’re ever called upon to pronounce a name like, say, Qin Qiuxue.
So, by all means, have your kids dive into the glamorous world of Mandarin. But don’t forget the language that will likely be far more important in their lives: el idioma más importante es Español!
(In case you were wondering, that headline says: First learn Spanish. Then study Chinese.)
© 2010 The New York Times Company
http://www.nytimes.com/2010/12/30/opinion/30kristof.html [comments at http://community.nytimes.com/comments/www.nytimes.com/2010/12/30/opinion/30kristof.html ]
Valero Doval
By OLIVER SACKS
Published: December 31, 2010
NEW Year’s resolutions often have to do with eating more healthfully, going to the gym more, giving up sweets, losing weight — all admirable goals aimed at improving one’s physical health. Most people, though, do not realize that they can strengthen their brains in a similar way.
While some areas of the brain are hard-wired from birth or early childhood, other areas — especially in the cerebral cortex, which is central to higher cognitive powers like language and thought, as well as sensory and motor functions — can be, to a remarkable extent, rewired as we grow older. In fact, the brain has an astonishing ability to rebound from damage — even from something as devastating as the loss of sight or hearing. As a physician who treats patients with neurological conditions, I see this happen all the time.
For example, one patient of mine who had been deafened by scarlet fever at the age of 9, was so adept at lip-reading that it was easy to forget she was deaf. Once, without thinking, I turned away from her as I was speaking. “I can no longer hear you,” she said sharply.
“You mean you can no longer see me,” I said.
“You may call it seeing,” she answered, “but I experience it as hearing.”
Lip-reading, seeing mouth movements, was immediately transformed for this patient into “hearing” the sounds of speech in her mind. Her brain was converting one mode of sensation into another.
In a similar way, blind people often find ways of “seeing.” Some areas of the brain, if not stimulated, will atrophy and die. (“Use it or lose it,” neurologists often say.) But the visual areas of the brain, even in someone born blind, do not entirely disappear; instead, they are redeployed for other senses. We have all heard of blind people with unusually acute hearing, but other senses may be heightened, too.
For example, Geerat Vermeij, a biologist at the University of California-Davis who has been blind since the age of 3, has identified many new species of mollusks based on tiny variations in the contours of their shells. He uses a sort of spatial or tactile giftedness that is beyond what any sighted person is likely to have.
The writer Ved Mehta, also blind since early childhood, navigates in large part by using “facial vision” — the ability to sense objects by the way they reflect sounds, or subtly shift the air currents that reach his face. Ben Underwood [ http://www.benunderwood.com/ ], a remarkable boy who lost his sight at 3 and died at 16 in 2009, developed an effective, dolphin-like strategy of emitting regular clicks with his mouth and reading the resulting echoes from nearby objects. He was so skilled at this that he could ride a bike and play sports and even video games.
People like Ben Underwood and Ved Mehta, who had some early visual experience but then lost their sight, seem to instantly convert the information they receive from touch or sound into a visual image — “seeing” the dots, for instance, as they read Braille with a finger. Researchers using functional brain imagery have confirmed that in such situations the blind person activates not only the parts of the cortex devoted to touch, but parts of the visual cortex as well.
One does not have to be blind or deaf to tap into the brain’s mysterious and extraordinary power to learn, adapt and grow. I have seen hundreds of patients with various deficits — strokes, Parkinson’s and even dementia — learn to do things in new ways, whether consciously or unconsciously, to work around those deficits.
That the brain is capable of such radical adaptation raises deep questions. To what extent are we shaped by, and to what degree do we shape, our own brains? And can the brain’s ability to change be harnessed to give us greater cognitive powers? The experiences of many people suggest that it can.
One patient I knew became totally paralyzed overnight from a spinal cord infection. At first she fell into deep despair, because she couldn’t enjoy even little pleasures, like the daily crossword she had loved.
After a few weeks, though, she asked for the newspaper, so that at least she could look at the puzzle, get its configuration, run her eyes along the clues. When she did this, something extraordinary happened. As she looked at the clues, the answers seemed to write themselves in their spaces. Her visual memory strengthened over the next few weeks, until she found that she was able to hold the entire crossword and its clues in her mind after a single, intense inspection — and then solve it mentally. She had had no idea, she later told me, that such powers were available to her.
This growth can even happen within a matter of days. Researchers at Harvard found, for example, that blindfolding sighted adults for as few as five days could produce a shift in the way their brains functioned: their subjects became markedly better at complex tactile tasks like learning Braille.
Neuroplasticity — the brain’s capacity to create new pathways — is a crucial part of recovery for anyone who loses a sense or a cognitive or motor ability. But it can also be part of everyday life for all of us. While it is often true that learning is easier in childhood, neuroscientists now know that the brain does not stop growing, even in our later years. Every time we practice an old skill or learn a new one, existing neural connections are strengthened and, over time, neurons create more connections to other neurons. Even new nerve cells can be generated.
I have had many reports from ordinary people who take up a new sport or a musical instrument in their 50s or 60s, and not only become quite proficient, but derive great joy from doing so. Eliza Bussey, a journalist in her mid-50s who now studies harp at the Peabody conservatory in Baltimore, could not read a note of music a few years ago. In a letter to me, she wrote about what it was like learning to play Handel’s “Passacaille”: “I have felt, for example, my brain and fingers trying to connect, to form new synapses. ... I know that my brain has dramatically changed.” Ms. Bussey is no doubt right: her brain has changed.
Music is an especially powerful shaping force, for listening to and especially playing it engages many different areas of the brain, all of which must work in tandem: from reading musical notation and coordinating fine muscle movements in the hands, to evaluating and expressing rhythm and pitch, to associating music with memories and emotion.
Whether it is by learning a new language, traveling to a new place, developing a passion for beekeeping or simply thinking about an old problem in a new way, all of us can find ways to stimulate our brains to grow, in the coming year and those to follow. Just as physical activity is essential to maintaining a healthy body, challenging one’s brain, keeping it active, engaged, flexible and playful, is not only fun. It is essential to cognitive fitness.
Oliver Sacks is the author of “The Mind’s Eye.”
© 2011 The New York Times Company
http://www.nytimes.com/2011/01/01/opinion/01sacks.html [ http://www.nytimes.com/2011/01/01/opinion/01sacks.html?pagewanted=all ]
---
(items linked in) http://investorshub.advfn.com/boards/read_msg.aspx?message_id=26706638 and preceding and following
=====
Primero Hay Que Aprender Español. Ranhou Zai Xue Zhongwen.
By NICHOLAS D. KRISTOF
Published: December 29, 2010
A quiz: If a person who speaks three languages is trilingual, and one who speaks four languages is quadrilingual, what is someone called who speaks no foreign languages at all?
Answer: an American.
Yet these days, we’re seeing Americans engaged in a headlong and ambitious rush to learn Chinese — or, more precisely, to get their kids to learn Chinese. Everywhere I turn, people are asking me the best way for their children to learn Chinese.
Partly that’s because Chinese classes have replaced violin classes as the latest in competitive parenting, and partly because my wife and I speak Chinese and I have tortured our three kids by trying to raise them bilingual. Chinese is still far less common in schools or universities than Spanish or French, but it is surging and has the “cool factor” behind it — so public and private schools alike are hastening to add Chinese to the curriculum.
In New York City alone, about 80 schools offer Chinese, with some programs beginning in kindergarten. And let’s be frank: If your child hasn’t started Mandarin classes by third grade, he or she will never amount to anything.
Just kidding. In fact, I think the rush to Chinese is missing something closer to home: the paramount importance for our children of learning Spanish.
Look, I’m a fervent believer in more American kids learning Chinese. But the language that will be essential for Americans and has far more day-to-day applications is Spanish. Every child in the United States should learn Spanish, beginning in elementary school; Chinese makes a terrific addition to Spanish, but not a substitute.
Spanish may not be as prestigious as Mandarin, but it’s an everyday presence in the United States — and will become even more so. Hispanics made up 16 percent of America’s population in 2009, but that is forecast to surge to 29 percent by 2050, according to estimates by the Pew Research Center.
As the United States increasingly integrates economically with Latin America, Spanish will become more crucial in our lives. More Americans will take vacations in Latin America, do business in Spanish, and eventually move south to retire in countries where the cost of living is far cheaper.
We’re already seeing growing numbers of Americans retire in Costa Rica, drawn by weather and lifestyle as well as low costs and good health care. We’ll also see more and more little bits of Florida that just happen to be located in Mexico, Panama or Dominican Republic.
Another reason to bet on Spanish is that Latin America is, finally, getting its act together. Of all regions of the world, it was arguably Latin America that rode the recent economic crisis most comfortably. That means that Spanish study does more than facilitate piña coladas on the beach at Cozumel. It’ll be a language of business opportunity in the coming decades. We need to turn our competitive minds not only east, but also south.
Moreover, Spanish is easy enough that kids really can emerge from high school with a very useful command of the language that they will retain for life, while Mandarin takes about four times as long to make the same progress. Chinese has negligible grammar — no singular or plural, no verb conjugations, no pesky masculine and feminine nouns — but there are thousands of characters to memorize as well as the landmines of any tonal language.
The standard way to ask somebody a question in Chinese is “qing wen,” with the “wen” in a falling tone. That means roughly: May I ask something? But ask the same “qing wen” with the “wen” first falling and then rising, and it means roughly: May I have a kiss?
That’s probably why trade relations are so strained between our countries. Our negotiators think they’re asking questions about tariffs, and the Chinese respond indignantly that kissing would be inappropriate. Leaving both sides confused.
In effect, Chinese is typically a career. Spanish is a practical add-on to your daily life, meshing with whatever career you choose. If you become a mechanic, you’ll be able to communicate better with some customers. If you’re the president, you’ll campaign more effectively in Texas and Florida.
China will probably be the world’s largest economy within our children’s lifetimes and a monumental force in every dimension of life. Studying Chinese gives you insight into one of the world’s great civilizations and creates a wealth of opportunities — plus, it’ll be a godsend if you’re ever called upon to pronounce a name like, say, Qin Qiuxue.
So, by all means, have your kids dive into the glamorous world of Mandarin. But don’t forget the language that will likely be far more important in their lives: el idioma más importante es Español!
(In case you were wondering, that headline says: First learn Spanish. Then study Chinese.)
© 2010 The New York Times Company
http://www.nytimes.com/2010/12/30/opinion/30kristof.html [comments at http://community.nytimes.com/comments/www.nytimes.com/2010/12/30/opinion/30kristof.html ]
Greensburg, KS - 5/4/07
"Eternal vigilance is the price of Liberty."
from John Philpot Curran, Speech
upon the Right of Election, 1790
F6
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