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wow - all the way to october for the last post! " and in the interim, nothing happened...."
so i'm reading this book called "the brain that changes itself" by norman doige.
it's chock full of somewhat gruesome experiments performed on helpless creatures to reveal how brains wire and rewire themselves. it's also full of inspired stories about people with severe brain damage who overcome what science would insist are specific limitations in the brain. the book asks: are these limitations real?
apparently not so much.
i especially am digging merzenich's work on the nucleus basilis, a brain part that secretes acetylcholine by the bucketful when we're very young and allows babies to, for instance, learn language without studious effort. he's come up with brain exercises that stimulate this area, and render even old brains vastly improved capacity to learn.
"Their work is indeed mind-bending, miracle-making, reality-busting stuff, with implications, as Dr. Doidge notes, not only for individual patients with neurologic disease but for all human beings, not to mention human culture, human learning and human history."
basic findings:
- Neurons that fire together wire together.
- Neurons that wire apart fire apart. This is also stated as Neurons out of sync fail to link.
- Use it or lose it.
obviously, the implications are good news, yet ,"...neuroplasticity may prove a curse as well. The brain can think itself into ruts, with electrical habits as difficult to eradicate as if it were, in fact, the immutable machine of yore."
and points back to the spaciousness that appears between thoughts and clung-to beliefs. not that we don't inevitably make the connections we make....but this work implies that flexibility of thought is similar to keeping any muscle stretched and toned....
www.nytimes.com/2007/05/29...29book.html
so i'm reading this book called "the brain that changes itself" by norman doige.
it's chock full of somewhat gruesome experiments performed on helpless creatures to reveal how brains wire and rewire themselves. it's also full of inspired stories about people with severe brain damage who overcome what science would insist are specific limitations in the brain. the book asks: are these limitations real?
apparently not so much.
i especially am digging merzenich's work on the nucleus basilis, a brain part that secretes acetylcholine by the bucketful when we're very young and allows babies to, for instance, learn language without studious effort. he's come up with brain exercises that stimulate this area, and render even old brains vastly improved capacity to learn.
"Their work is indeed mind-bending, miracle-making, reality-busting stuff, with implications, as Dr. Doidge notes, not only for individual patients with neurologic disease but for all human beings, not to mention human culture, human learning and human history."
basic findings:
- Neurons that fire together wire together.
- Neurons that wire apart fire apart. This is also stated as Neurons out of sync fail to link.
- Use it or lose it.
obviously, the implications are good news, yet ,"...neuroplasticity may prove a curse as well. The brain can think itself into ruts, with electrical habits as difficult to eradicate as if it were, in fact, the immutable machine of yore."
and points back to the spaciousness that appears between thoughts and clung-to beliefs. not that we don't inevitably make the connections we make....but this work implies that flexibility of thought is similar to keeping any muscle stretched and toned....
www.nytimes.com/2007/05/29...29book.html
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Re: neuroplasticity
Thu, January 15, 2009 - 12:02 AMHi Sul...
"he's come up with brain exercises that stimulate this area"
Could you share any of these? I'd settle for a few extra drops. -
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Re: neuroplasticity
Thu, January 15, 2009 - 9:48 AMdid i mention that the brain exercises are being marketed with typical capitalist flare? i had heard it was featured on a PBS special, and when i went looking for it, i actually found an hour program on the QVC channel!
some info is here, on merzenich's website:
www.positscience.com/science..._design/
i also found this "test your brain speed" app:
bfc.positscience.com/eval/bst.php
- tho i have to get to work and haven't taken it yet. frankly, i'm a bit afraid to find out! but you go ahead, charles, i'm sure you'll do fine!
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Re: neuroplasticity
Sat, January 17, 2009 - 2:05 AM"frankly, i'm a bit afraid to find out! but you go ahead"
Yeah, that was the first thought I had when I saw, "test your brain speed".
Some stones are maybe best left unturned ;-) -
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Re: neuroplasticity
Sat, January 17, 2009 - 10:27 AMha - well, i took it anyway, morbidly curious as i am, making myself slightly late for work, rushing thru the test, making several stoopid clicking errors and scoring a 40 anyway (which i gather isn't too terrible for my, ahem, age group.)
and then, coincidentally, the QVC infomercial aired last night, i think new this month judging from the commentary.
so it turns out the online test, tho an audio test rather than a visual test, is an example of the exercises offered in the amazing, cutting-edge, scientifically proven way to improve *your* brain!!!! (the audio version tests for certain skills, the visual for another, according to what i read.)
i dunno....
now, granted, i am utterly turned off by the commercial hawking method on QVC, but i can't say i was all that impressed. they're selling it with typical oh-so-bush-years fear tactics, primarily how it can improve your driving skills and save you from the inevitable terrible accident that awaits you if you let your brain get lazy. ick.
the exercise themselves, which were featured in short demonstrations by one of the scientists who helped develop them, remind me of simple hand-eye coordination contests, not unlike most video games. if this is what it takes to keep a brain sharp, our kids are all going to be middle age geniuses by today's standards.
but they claim not. they claim, of course, that their tests are specifically designed to improve the way your brain works, by continually adjusting to your specific aptitude as you go along. this is why each person has to pay for the software, and you can't just share it with the whole family. great marketing design, and scientifically proven! as was repeated every few minutes.
they do claim the benefits last up to five years too, so presumably you can slack off inbetween buying the next, improved edition, which will be coming out within that time frame, i have no doubt.
snark, snark.
anyway, i still find the book itself a fascinating read.....tho really what i take away from it (and from everything, more and more lately) is the malleable nature of reality itself, with the brain symbiotically involved in a feedback loop so intimate the notion of discreet entities dissolves. i mean, chicken or egg? all the way down, if ya know what i mean....
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Re: neuroplasticity
Sun, January 18, 2009 - 1:58 PMTook the tests. I guess I did OK, and I still remember I took them - that's a plus.
Did you take the 'word recognition in the noisy environment' test? I did about average but found that one to be the most interesting. -
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Re: neuroplasticity
Sun, January 18, 2009 - 5:53 PMno, i haven;t, but i'll look that one up later tonight. got a meeting to run to....
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Re: neuroplasticity
Tue, February 10, 2009 - 11:02 AMhey charles, sorry i only got back to this now, and discovered that test is meant to run on PC only, unless you have boot camp or parallels, which evidently i don't.
i have been watching the brain series on PBS, tho, and saw some more examples of the software, but basically the 2 main things i found useful for stimulating new neuronal growth are physical exercise and learning new tasks. evidently, as we grow old we tend to do more and more things by rote, because we've already got the skills, and that makes the brain fat and lazy. so it's important to keep challenging it....and i'm guessing doing so also increases one's general ideological flexibility....at least one hopes.
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Re: neuroplasticity
Tue, February 10, 2009 - 11:16 PM"physical exercise and learning new tasks"
Yeah, Sul, I think you hit that on the head. I'm doin' what I think I ought to be doin' - but I guess that could be part of the problem. Maybe what we think we should be doing, however those thoughts might seem to us, is letting those neural coasters glide down the same ole tracks. Or, of course, maybe those tracks had already been laid down - whichever twists and turns we find ourselves rolling along. It never ends.
Great hearing from you. -
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Re: neuroplasticity
Wed, February 11, 2009 - 6:27 AMThanks for posting this information, I have been lurking since you started & really enjoyed reading it. -
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Re: neuroplasticity
Wed, February 11, 2009 - 9:52 AMhi gemma ! good to see you here!
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Re: neuroplasticity
Wed, February 11, 2009 - 9:52 AMyou too, charles. i'm lurking on your tribe a bit myself. :-)
try to catch that PBS series if you can. i just find it fascinating that the default template has gone from thinking the brain is a really HARD-wired mechanism to this fluid, malleable, ever-adjustiing soup of energetic connections. i like it. on a metaphorical level, it throws me into a space of considering reality as malleable in a way.....
as i say that, i realize i can't articulate how that reads to me. it's not about wishing something true, but has a more organic, indirect kinda feel.....
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