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Wan LixinOpinion deputy editor of Shanghai Daily
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Learning new tricks improves the brain
Source: Agencies |
October 13, 2009, Tuesday
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Print Edition
Print Edition
ADULTS who learn new tricks such as juggling can improve the "wiring" of their brains, British scientists said on Sunday.
The scientists said their research showed newly trained jugglers had better connectivity in parts of the brain involved in movements needed to catch the balls - and the improvement lasted for weeks, even after they stopped practising juggling.
"We tend to think of the brain as being static, or even beginning to degenerate, once we reach adulthood," said Heidi Johansen-Berg of Oxford University's department of clinical neurology, whose study was published in the journal Nature Neuroscience.
"We've shown that it is possible for the brain to condition its own wiring system to operate more efficiently."
White matter consists of bundles of long nerve fibres that conduct electrical signals between nerve cells, while grey matter consists of nerve cell bodies where the processing and computation is done.
Scientists have already shown that grey matter function can be improved by learning or experiencing new things, but improvements in white matter have not previously been shown.
The scientists took two groups of 24 adults, none of whom could juggle. One group had weekly juggling training sessions for six weeks and was asked to practice 30 minutes a day. The particpants' brains were scanned before and after the six-week period.
All of them could juggle three balls for at least two cascades, but some could juggle five balls and do other tricks.
But all the newly trained jugglers showed changes in white matter - suggesting the benefit was down to time practising rather than ability.
The scientists said their research showed newly trained jugglers had better connectivity in parts of the brain involved in movements needed to catch the balls - and the improvement lasted for weeks, even after they stopped practising juggling.
"We tend to think of the brain as being static, or even beginning to degenerate, once we reach adulthood," said Heidi Johansen-Berg of Oxford University's department of clinical neurology, whose study was published in the journal Nature Neuroscience.
"We've shown that it is possible for the brain to condition its own wiring system to operate more efficiently."
White matter consists of bundles of long nerve fibres that conduct electrical signals between nerve cells, while grey matter consists of nerve cell bodies where the processing and computation is done.
Scientists have already shown that grey matter function can be improved by learning or experiencing new things, but improvements in white matter have not previously been shown.
The scientists took two groups of 24 adults, none of whom could juggle. One group had weekly juggling training sessions for six weeks and was asked to practice 30 minutes a day. The particpants' brains were scanned before and after the six-week period.
All of them could juggle three balls for at least two cascades, but some could juggle five balls and do other tricks.
But all the newly trained jugglers showed changes in white matter - suggesting the benefit was down to time practising rather than ability.
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