Along these lines, my brother-in-law gets autism headaches where he hears a guitar riff and can copy it instantly, and can look at a row of lockers and say how many there are without counting. Was I ever shocked to be talking with him one day, he pauses, says "48", says he has a headache, and goes home. It turns out there were 48 chairs in that room.
If that kind of autism can be turned on with a "switch", why not other aspects?
I have borderline high-functioning autism myself. Regarding "special talents" (with me anyway) - it comes and goes. I can't switch it on/ off. Regarding the chairs if there were 6 rows of 8 chairs it isn't that hard to count. The ability to remember musical melodies isn't that difficult - and can be learned. It's part of most musician's training to be able to memorise not just a riff but entire pages of music. If you've taken a music exam you have to sing back a few phrases played to you - which is not far off playing them. I get the tension headaches too - one of the downsides of the frustration caused by having a communication disorder and being misunderstood.
In my own experience I remember a migraine I had come on at work and it transformed me into a savant (of sorts) by giving me a mini Tourette's episode. I couldn't actually tell my colleagues in so many words why I was being a bit odd (apparently muttering "motherfucker" every third word is normal for me when I'm working on something tricky - who knew?) but I developed an amazing ability to communicate my predicament by pointing at my head, grimacing, and saying "shit motherfucker gnnn!"
Who knew that talent lay latent within me, just waiting for its release through the method of blinding and nauseating pain?
Isn't that what Einstein said? Anyway, that link [nytimes.com] seems to be down, but I just saw a documentary yesterday night on the telly, where they trained people to modify their brainwave activity to move a player through a video game. I think this only scratches the surface - there's a lot of potential that we probably don't even know about... I would be glad to add a few more percent to mine, that's for sure - LOL:-)
by Anonymous Coward writes:
on Saturday June 21, 2003 @12:44PM (#6261935)
By LAWRENCE
OSBORNE
n a concrete basement at the University of Sydney,
I sat in a chair waiting to have my brain altered by an electromagnetic pulse.
My forehead was connected, by a series of electrodes, to a machine that looked
something like an old-fashioned beauty-salon hair dryer and was sunnily
described to me as a ''Danish-made transcranial magnetic stimulator.'' This was
not just any old Danish-made transcranial magnetic stimulator, however; this was
the Medtronic Mag Pro, and it was
being operated by Allan Snyder, one of the world's most remarkable scientists of
human cognition.
Nonetheless, the anticipation of electricity being beamed into my frontal
lobes (and the consent form I had just signed) made me a bit nervous. Snyder
found that amusing. ''Oh, relax now!'' he said in the thick local accent he has
acquired since moving here from America. ''I've done it on myself a hundred
times. This is Australia. Legally, it's far more difficult to damage people in
Australia than it is in the United States.''
''Damage?'' I groaned.
''You're not going to be damaged,'' he said. ''You're going to be enhanced.''
The Medtronic was originally developed as a tool for brain surgery: by
stimulating or slowing down specific regions of the brain, it allowed doctors to
monitor the effects of surgery in real time. But it also produced, they noted,
strange and unexpected effects on patients' mental functions: one minute they
would lose the ability to speak, another minute they would speak easily but
would make odd linguistic errors and so on. A number of researchers started to
look into the possibilities, but one in particular intrigued Snyder: that people
undergoing transcranial magnetic stimulation, or TMS, could suddenly exhibit
savant intelligence -- those isolated pockets of geniuslike mental ability that
most often appear in autistic people.
Snyder is an impish presence, the very opposite of a venerable professor, let
alone an internationally acclaimed scientist. There is a whiff of Woody Allen
about him. Did I really want him, I couldn't help thinking, rewiring my hard
drive? ''We're not changing your brain physically,'' he assured me. ''You'll
only experience differences in your thought processes while you're actually on
the machine.'' His assistant made a few final adjustments to the electrodes, and
then, as everyone stood back, Snyder flicked the switch.
A series of electromagnetic pulses were being directed into my frontal lobes,
but I felt nothing. Snyder instructed me to draw something. ''What would you
like to draw?'' he said merrily. ''A cat? You like drawing cats? Cats it is.''
I've seen a million cats in my life, so when I close my eyes, I have no
trouble picturing them. But what does a cat really look like, and how do you put
it down on paper? I gave it a try but came up with some sort of stick figure,
perhaps an insect.
While I drew, Snyder continued his lecture. ''You could call this a
creativity-amplifying machine. It's a way of altering our states of mind without
taking drugs like mescaline. You can make people see the raw data of the world
as it is. As it is actually represented in the unconscious mind of all of us.''
Two minutes after I started the first drawing, I was instructed to try again.
After another two minutes, I tried a third cat, and then in due course a fourth.
Then the experiment was over, and the electrodes were removed. I looked down at
my work. The first felines were boxy and stiffly unconvincing. But after I had
been subjected to about 10 minutes of transcranial magnetic stimulation, their
tails had grown more vibrant, more nervous; their faces were personable and
convincing. They were even beginning to wear clever expressions.
I could hardly recognize them as my own drawings, though I had watched myself
render each one, in all its loving detail. Somehow over the course of a very few
minutes, and with no additional instruction, I had gone from an incompetent
draftsman to a very imp
On the "10% of your brain" legend, here [urbanlegends.com] is a pretty cool writeup. The best quote from the article:
In other words, the "humans only use 10% of their brains" canard would more correctly be phrased "humans only use 10% of their brains for walking around and smelling things"...
What you have to understand is that nobody selects. I mean, an insect is really less evolved than a human, not to say an amoeba, and they are not marked for extintion per se.
Actually an insect is arguably more evolved than us, since it's generation time (and that of it's ancestors) is much smaller. An amoeba is incredibly more evolved, in the sense of total change since it's last common ancestor with mammals.
Selection is not an invisible hand striving for perfection, there's not a biologist on the planet worth his weight in salt who'll say that. Selection is a instantaneous direction, a random walk through the fitness landscape. At every given moment, the selection pressure is for what would most benifit a population (not individual) right now, with no consideration for the future or perfection. There's no appeal to a nature-god, no inferior or superior (let alone perfection), just a constant changing of directions for the immediate survival.
Since most of a modern CPU's transistor count is cache memory you'ill probably find that outside the control unit at any one time even less than 10% of the transistors are active. If you include the number of transistors present for main memory in the mix that percentage gets even lower.
"they were of normal or above-normal intelligence... their cerebral hemispheres had been compressed into a slab less than an inch thick"
If kids can lose large portions of their brains and still grow up bright and healthy, then I think that suggests pretty strongly that most of the brain is either functionally redundant or simply unused.
That's a great quote about the 10%, though.
What I want to know is why large animals need a larger brain to handle their bodies, and brain:body mass ratios are considered more important than absolute brain mass. It shouldn't require more data processing just to run a larger body, when most of its processes are regulated without the brain. Furthermore, it sounds like that wasn't the case for dinosaurs, some of which had little bird-sized brains in enormous bodies.
At first I just chalked up the down webserver to some poor schmed's server going belly-up under the weight of the slashdot effect. But no, that link is sitting on the New York Times server:
http://www.nytimes.com/2003/06/22/magazine/22S
But for some reason I can get to the NYT.com frontpage, albeit after some delay. Their search results do not show anything matching that article name ("Savant for a Day") and Google doesn't have anything either.
Ca bien. Will just have to wait for it to die off.
Synder was also featured in a Discover magazine article [discover.com] about this same device and its effects.
Additionally, the Discover article also talked about the various instances of sudden onset autism. One of the examples presented was the case of a 3 year old girl named Nadia, who was capable of drawing a picture of a horse and rider in such detail that it would've taken a experienced artist to do. The article shows one of Nadia's drawings, which IMHO is very beautifully rendered.
Now, if only to find that machine so I can calculate the Mayan calendar past 2012...
To educate a man in mind and not in morals is to educate a menace to society. -Theodore Roosevelt
A good education really needs to be earned, that way you (are more likely to?) get decent character traits like patience, dedication and sound morals instead of just facts. =Smidge=
If everyone was smart, the smart would loose their advantage. The same goes for knowledge.
Who cares if the smart lose their advantage? Given the opportunity to make everyone smarter, would we deny the less-smart people this benefit just because the "naturally smart" people somehow deserve to be smart more than anyone else does?
Even if the elitism of that idea doesn't bother, you, consider that smart people often spend a large portion of their time and energy trying to convince dumb people that their good ideas are in fact good ideas, or trying to explain their ideas to dumb people so that the dumb people can use them effectively. Being surrounded by smart people would make you (as a smart person) much more effective than trying to get your work done with the help of dumb people.
If there was a really easy way of absorbing knowledge, where would the power and fun of knowledge be?
Knowledge's main use isn't to be fun or make you powerful, it's to help get things done. And in any case, I suspect most people find the skillful application of knowledge much more rewarding then the tedious and difficult process of gaining that knowledge.
by Anonymous Coward writes:
on Saturday June 21, 2003 @11:46AM (#6261620)
The USB forum has named the two kinds of brain power 'Full Brain Power' and 'High-speed Brain Power'. Both are now collectively known as Brain Power 2.0.
I looked at the 'before and after' section of the learn to draw site. It did seem that the variety of the 'before' pictures was squashed into the standard 'after' style. In particular I personally feel that the before in this picture [drawright.com] shows more promise than the after.
by Anonymous Coward writes:
on Saturday June 21, 2003 @11:53AM (#6261661)
By LAWRENCE OSBORNE
In a concrete basement at the University of Sydney, I sat in a chair waiting to have my brain altered by an electromagnetic pulse. My forehead was connected, by a series of electrodes, to a machine that looked something like an old-fashioned beauty-salon hair dryer and was sunnily described to me as a ''Danish-made transcranial magnetic stimulator.'' This was not just any old Danish-made transcranial magnetic stimulator, however; this was the Medtronic Mag Pro, and it was being operated by Allan Snyder, one of the world's most remarkable scientists of human cognition.
Nonetheless, the anticipation of electricity being beamed into my frontal lobes (and the consent form I had just signed) made me a bit nervous. Snyder found that amusing. ''Oh, relax now!'' he said in the thick local accent he has acquired since moving here from America. ''I've done it on myself a hundred times. This is Australia. Legally, it's far more difficult to damage people in Australia than it is in the United States.''
''Damage?'' I groaned.
''You're not going to be damaged,'' he said. ''You're going to be enhanced.''
The Medtronic was originally developed as a tool for brain surgery: by stimulating or slowing down specific regions of the brain, it allowed doctors to monitor the effects of surgery in real time. But it also produced, they noted, strange and unexpected effects on patients' mental functions: one minute they would lose the ability to speak, another minute they would speak easily but would make odd linguistic errors and so on. A number of researchers started to look into the possibilities, but one in particular intrigued Snyder: that people undergoing transcranial magnetic stimulation, or TMS, could suddenly exhibit savant intelligence -- those isolated pockets of geniuslike mental ability that most often appear in autistic people.
Snyder is an impish presence, the very opposite of a venerable professor, let alone an internationally acclaimed scientist. There is a whiff of Woody Allen about him. Did I really want him, I couldn't help thinking, rewiring my hard drive? ''We're not changing your brain physically,'' he assured me. ''You'll only experience differences in your thought processes while you're actually on the machine.'' His assistant made a few final adjustments to the electrodes, and then, as everyone stood back, Snyder flicked the switch.
A series of electromagnetic pulses were being directed into my frontal lobes, but I felt nothing. Snyder instructed me to draw something. ''What would you like to draw?'' he said merrily. ''A cat? You like drawing cats? Cats it is.''
I've seen a million cats in my life, so when I close my eyes, I have no trouble picturing them. But what does a cat really look like, and how do you put it down on paper? I gave it a try but came up with some sort of stick figure, perhaps an insect.
While I drew, Snyder continued his lecture. ''You could call this a creativity-amplifying machine. It's a way of altering our states of mind without taking drugs like mescaline. You can make people see the raw data of the world as it is. As it is actually represented in the unconscious mind of all of us.''
Two minutes after I started the first drawing, I was instructed to try again. After another two minutes, I tried a third cat, and then in due course a fourth. Then the experiment was over, and the electrodes were removed. I looked down at my work. The first felines were boxy and stiffly unconvincing. But after I had been subjected to about 10 minutes of transcranial magnetic stimulation, their tails had grown more vibrant, more nervous; their faces were personable and convincing. They were even beginning to wear clever expressions.
I could hardly recognize them as my own drawings, though I had watched myself render each one, in all its loving detail. Somehow over the course of a very few minutes, and with no additional instruction, I had gone from an incompetent draftsman to a very impressive artist of the feline form.
Snyder looked over my shoulder. ''Well, how about that? Leonardo would be envious.'' Or turning in his grave, I thought.
As remarkable as the cat-drawing lesson was, it was just a hint of Snyder's work and its implications for the study of cognition. He has used TMS dozens of times on university students, measuring its effect on their ability to draw, to proofread and to perform difficult mathematical functions like identifying prime numbers by sight. Hooked up to the machine, 40 percent of test subjects exhibited extraordinary, and newfound, mental skills. That Snyder was able to induce these remarkable feats in a controlled, repeatable experiment is more than just a great party trick; it's a breakthrough that may lead to a revolution in the way we understand the limits of our own intelligence -- and the functioning of the human brain in general.
Snyder's work began with a curiosity about autism. Though there is little consensus about what causes this baffling -- and increasingly common -- disorder, it seems safe to say that autistic people share certain qualities: they tend to be rigid, mechanical and emotionally dissociated. They manifest what autism's great ''discoverer,'' Leo Kanner, called ''an anxiously obsessive desire for the preservation of sameness.'' And they tend to interpret information in a hyperliteral way, using ''a kind of language which does not seem intended to serve interpersonal communication.''
For example, Snyder says, when autistic test subjects came to see him at the university, they would often get lost in the main quad. They might have been there 10 times before, but each time the shadows were in slightly different positions, and the difference overwhelmed their sense of place. ''They can't grasp a general concept equivalent to the word 'quad,''' he explains. ''If it changes appearance even slightly, then they have to start all over again.''
Despite these limitations, a small subset of autistics, known as savants, can also perform superspecialized mental feats. Perhaps the most famous savant was Dustin Hoffman's character in ''Rain Man,'' who could count hundreds of matchsticks at a glance. But the truth has often been even stranger: one celebrated savant in turn-of-the-century Vienna could calculate the day of the week for every date since the birth of Christ. Other savants can speak dozens of languages without formally studying any of them or can reproduce music at the piano after only a single hearing. A savant studied by the English doctor J. Langdon Down in 1887 had memorized every page of Gibbon's ''Decline and Fall of the Roman Empire.'' At the beginning of the 19th century, the splendidly named Gottfried Mind became famous all over Europe for the amazing pictures he drew of cats.
The conventional wisdom has long been that autistics' hyperliteral thought processes were completely separate from the more contextual, nuanced, social way that most adults think, a different mental function altogether. And so, by extension, the extraordinary skills of autistic savants have been regarded as flukes, almost inhuman feats that average minds could never achieve.
Snyder argues that all those assumptions -- about everything from the way autistic savants behave down to the basic brain functions that cause them to do so -- are mistaken. Autistic thought isn't wholly incompatible with ordinary thought, he says; it's just a variation on it, a more extreme example.
He first got the idea after reading ''The Man Who Mistook His Wife for a Hat,'' in which Oliver Sacks explores the link between autism and a very specific kind of brain damage. If neurological impairment is the cause of the autistic's disabilities, Snyder wondered, could it be the cause of their geniuslike abilities, too? By shutting down certain mental functions -- the capacity to think conceptually, categorically, contextually -- did this impairment allow other mental functions to flourish? Could brain damage, in short, actually make you brilliant?
In a 1999 paper called ''Is Integer Arithmetic Fundamental to Mental Processing? The Mind's Secret Arithmetic,'' Snyder and D. John Mitchell considered the example of an autistic infant, whose mind ''is not concept driven. . . . In our view such a mind can tap into lower level details not readily available to introspection by normal individuals.'' These children, they wrote, seem ''to be aware of information in some raw or interim state prior to it being formed into the 'ultimate picture.''' Most astonishing, they went on, ''the mental machinery for performing lightning fast integer arithmetic calculations could be within us all.''
And so Snyder turned to TMS, in an attempt, as he says, ''to enhance the brain by shutting off certain parts of it.''
''In a way, savants are the great enigma of today's neurology,'' says Prof. Joy Hirsch, director of the Functional M.R.I. Research Center at Columbia University. ''They exist in all cultures and are a distinct type. Why? How? We don't know. Yet understanding the savant will help provide insight into the whole neurophysiological underpinning of human behavior. That's why Snyder's ideas are so exciting -- he's asking a really fundamental question, which no one has yet answered.''
If Snyder's suspicions are correct, in fact, and savants have not more brainpower than the rest of us, but less, then it's even possible that everybody starts out life as a savant. Look, for example, at the ease with which children master complex languages -- a mysterious skill that seems to shut off automatically around the age of 12. ''What we're doing is counterintuitive,'' Snyder tells me. ''We're saying that all these genius skills are easy, they're natural. Our brain does them naturally. Like walking. Do you know how difficult walking is? It's much more difficult than drawing!''
To prove his point, he hooks me up to the Medtronic Mag Pro again and asks me to read the following lines:
A bird in the hand is worth two in the the bush
''A bird in the hand is worth two in the bush,'' I say.
''Again,'' Snyder says, and smiles.
So once more: ''A bird in the hand is worth two in the bush.'' He makes me repeat it five or six times, slowing me down until he has me reading each word with aching slowness.
Then he switches on the machine. He is trying to suppress those parts of my brain responsible for thinking contextually, for making connections. Without them, I will be able to see things more as an autistic might.
After five minutes of electric pulses, I read the card again. Only then do I see -- instantly -- that the card contains an extra ''the.''
On my own, I had been looking for patterns, trying to coax the words on the page into a coherent, familiar whole. But ''on the machine,'' he says, ''you start seeing what's actually there, not what you think is there.''
Snyder's theories are bolstered by the documented cases in which sudden brain damage has produced savant abilities almost overnight. He cites the case of Orlando Serrell, a 10-year-old street kid who was hit on the head and immediately began doing calendrical calculations of baffling complexity. Snyder argues that we all have Serrell's powers. ''We remember virtually everything, but we recall very little,'' Snyder explains. ''Now isn't that strange? Everything is in there'' -- he taps the side of his head. ''Buried deep in all our brains are phenomenal abilities, which we lose for some reason as we develop into 'normal' conceptual creatures. But what if we could reawaken them?''
Not all of Snyder's colleagues agree with his theories. Michael Howe, an eminent psychologist at the University of Exeter in Britain who died last year, argued that savantism (and genius itself) was largely a result of incessant practice and specialization. ''The main difference between experts and savants,'' he once told New Scientist magazine, ''is that savants do things which most of us couldn't be bothered to get good at.''
Robert Hendren, executive director of the M.I.N.D. Institute at the University of California at Davis, brought that concept down to my level: ''If you drew 20 cats one after the other, they'd probably get better anyway.'' Like most neuroscientists, he doubts that an electromagnetic pulse can stimulate the brain into creativity: ''I'm not sure I see how TMS can actually alter the way your brain works. There's a chance that Snyder is right. But it's still very experimental.''
Tomas Paus, an associate professor of neuroscience at McGill University, who has done extensive TMS research, is even more dubious. ''I don't believe TMS can ever elicit complex behavior,'' he says.
But even skeptics like Hendren and Paus concede that by intensifying the neural activity of one part of the brain while slowing or shutting down others, TMS can have remarkable effects. One of its most successful applications has been in the realm of psychiatry, where it is now used to dispel the ''inner voices'' of schizophrenics, or to combat clinical depression without the damaging side effects of electroshock therapy. (NeuroNetics, an Atlanta company, is developing a TMS machine designed for just this purpose, which will probably be released in 2006, pending F.D.A. approval.)
Meanwhile, researchers at the National Institute of Neurological Disorders and Stroke found that TMS applied to the prefrontal cortex enabled subjects to solve geometric puzzles much more rapidly. Alvaro Pascual-Leone, associate professor of neurology at the Beth Israel Deaconess Medical Center in Boston (who, through his work at the Laboratory for Magnetic Brain Stimulation, has been one of the American visionaries of TMS), has even suggested that TMS could be used to ''prep'' students' minds before lessons.
None of this has gone unnoticed by canny entrepreneurs and visionary scientists. Last year, the Brain Stimulation Laboratory at the Medical University of South Carolina received a $2 million government grant to develop a smaller TMS device that sleep-deprived soldiers could wear to keep them alert. ''It's not 'Star Trek' at all,'' says Ziad Nahas, the laboratory's medical director. ''We've done a lot of the science on reversing cognitive deficiencies in people with insomnia and sleep deficiencies. It works.'' If so, it could be a small leap to the day it boosts soldiers' cognitive functioning under normal circumstances.
And from there, how long before Americans are walking around with humming antidepression helmets and math-enhancing ''hair dryers'' on their heads? Will commercially available TMS machines be used to turn prosaic bank managers into amateur Rembrandts? Snyder has even contemplated video games that harness specialized parts of the brain that are otherwise inaccessible.
''Anything is possible,'' says Prof. Vilayanur Ramachandran, director of the Center for Brain and Cognition at the University of California at San Diego and the noted author of ''Phantoms in the Brain.'' Snyder's theories have not been proved, he allows, but they are brilliantly suggestive: ''We're at the same stage in brain research that biology was in the 19th century. We know almost nothing about the mind. Snyder's theories may sound like 'The X-Files,' but what he's saying is completely plausible. Up to a point the brain is open, malleable and constantly changing. We might well be able to make it run in new ways.'' Of those who dismiss Snyder's theories out of hand, he shrugs: ''People are often blind to new ideas. Especially scientists.''
Bruce L. Miller, the A.W. and Mary Margaret Claussen distinguished professor in neurology at the University of California at San Francisco, is intrigued by Snyder's experiments and his attempts to understand the physiological basis of cognition. But he points out that certain profound questions about artificially altered intelligence have not yet been answered. ''Do we really want these abilities?'' he asks. ''Wouldn't it change my idea of myself if I could suddenly paint amazing pictures?''
It probably would change people's ideas of themselves, to say nothing of their ideas of artistic talent. And though that prospect might discomfort Miller, there are no doubt others whom it would thrill. But could anyone really guess, in advance, how their lives might be affected by instant creativity, instant intelligence, instant happiness? Or by their disappearance, just as instantly, once the TMS is switched off?
As he walked me out of the university -- a place so Gothic that it could be Oxford, but for the intensely flowering jacaranda in one corner and the strange Southern Hemisphere birds flitting about -- and toward the freeway back to downtown Sydney, Snyder for his part radiated the most convincingly ebullient optimism. ''Remember that old saw which says that we only use a small part our brain? Well, it might just be true. Except that now we can actually prove it physically and experimentally. That has to be significant. I mean, it has to be, doesn't it?''
We stopped for a moment by the side of the roaring traffic and looked up at a haze in the sky. Snyder's eyes contracted inquisitively as he pieced together the unfamiliar facts (brown smoke, just outside Sydney) and eased them into a familiar narrative framework (the forest fires that had been raging all week). It was an effortless little bit of deductive, nonliteral thinking -- the sort of thing that human beings, unaided by TMS, do a thousand times a day. Then, in an instant, he switched back to our conversation and picked up his train of thought. ''More important than that, we can change our own intelligence in unexpected ways. Why would we not want to explore that?''
When I was in high school, this Book Drawing on the Right of the Brain was quite popular with the art teachers. It was said to be a new way to teach people to draw. From what I remember it worked quite nicely for me and did not require magnetic fields.
To use the technique, we were told to lay out our drawing pads, place our hands into the middle of the pad and never to look at our hands as we were drawing. We were supposed to focus on what we were drawing and then try to remember where we left our hands in space without actually seeing where they were. I was told that I could glance down at my hand from time to time, but that I should not look at my hands while actually drawing.
Whatever the technique did do my cognitive process seemed to work. My normal drawing style looked like figures 1 and 2. While I used the right side technique, my drawing looked like figure 3, with my lines conveying more movement and being more a stylized reproduction.
Maybe this guyâ(TM)s apparatus is simply forcing the participants not to look at their hands while drawing. Seems a lot more controls would be needed to say magnetic fields have anything to do with this phenomenon.
As I recall from college anthropology, human childbirth is painful (and sometimes even fatal) precisely because our craniums are so large, relative to other mammals and relative to the size of our frames. (Humans have the highest ratio of brain mass to body mass; whales come in second.) If so much of our brain mass were hypothetically unnecessary, then humans with smaller brains would be more likely to pass on their genes, as those childbirths would less frequently be fatal. Over time, humans would come to have much smaller craniums (90% smaller, if the urban myth were true), not the large craniums that we currently possess. The fact that evolution is willing to pay such a high penalty (increased childbirth fatalities) for large brains indicates that there must be an offsetting evolutionary advantage to having large brains. The notion that much of our brain is therefore "unused" doesn't really make sense from an evolutionary standpoint.
The fact that evolution is willing to pay such a high penalty (increased childbirth fatalities) for large brains indicates that there must be an offsetting evolutionary advantage to having large brains. The notion that much of our brain is therefore "unused" doesn't really make sense from an evolutionary standpoint.
Then why do I have an appendix? (Or slim body hairs?)
Evolution does not look at any one characteristic. It looks at the whole of the being. And, between equally fit species, there's still a measure of chance.
Let's ignore the obvious rebuttal to your point (use of the brain's savant abilities is proportional; if we have a brain half the design, we might have half of the all-around intelligence) and focus on the evolutionary advantages of having unused brain tissue.
First off, we're able to survive brain damage much easier. Being able to be thwacked in the head and still bring food home--and maybe go out and hunt some more the next day--is an obvious evolutionary advantage.
Secondly, it increases mating. Having a bigger brain means our heads are shaped different--in a more asthetically pleasing fashion. The face is a human's primary means of identification and emotional communication--a clearer face is an obvious evolutionary advantage, within the species.
Thirdly, it's entirely possible that over the uncounted generations of prehistory, human-ancestor-groups who had savants among them simply outperformed other human-ancestor-groups who did not, thus neccistating a retention of the savant abilities. Not a clear evolutionary advantage, but a distinct possibility.
While your childbirth arugment is a good one, for it to work we'd need to have some mechanism to actually shrink brain mass at the start. Bugger me if I can think of one that'd work--larger hips would be a much easier evolutionary adaptation.
I don't think I agree with anything you wrote:-) Just reading through, and this is longer than I intended, but what the hell...
Then why do I have an appendix? (Or slim body hairs?)
Because there is very little selective pressure to remove these low-cost (in evolutionary terms) additions to the body. This is assuming that you can get rid of X without affecting Y, which is a heck of an assumption - most of our body parts are created/regulated by the interaction over time of *lots* of different genetic codes, your overall genetic code is not a blueprint you can just erase part of... Besides, they're not useful *now*. They presumably were *once*, and they may yet be again. Not in our lifetime, I suspect:-) but possibly in the future...
Let's ignore the obvious rebuttal to your point (use of the brain's savant abilities is proportional; if we have a brain half the design, we might have half of the all-around intelligence) and focus on the evolutionary advantages of having unused brain tissue.
How do you *know* it's proportional ? It may be highly non-linear in nature. Intelligence could be an emergent property, as opposed to intrinsic. There could be a minimum (or maximum) neuron-quantity threshold for intelligence to occur, the decision-surface for relative intelligence could be as complex as a fractal plane. We don't know.
First off, we're able to survive brain damage much easier. Being able to be thwacked in the head and still bring food home--and maybe go out and hunt some more the next day--is an obvious evolutionary advantage.
I think you're overlooking the incredibly difficult process humans go through in childbirth. The non-assisted mortality rate (for both mother and child) is far higher than any other mammalian species on the planet. Primate females almost always give birth without excessive labour. Human females labour can last over several hours, although today the child is more likely to be induced or surgically delivered. Only 200 years ago, death in childbirth was commonplace for those who could not afford assistance.
In contrast, being hit on the head hard enough to significantly break the skull will pretty much cause damage whatever size brain you have. Since all the higher-order functionality is on the outside of the brain (grey matter), that's the area that would be damaged anyway. If you don't break the skull, you're likely to just get a bruise either way, so long as you don't make a habit of it...
Don't forget that (unless our ancestors were particularly keen on headbutting cliffs) this would be an effect on 1 person. The do-or-die childbirth thing is an issue for every human born. I suspect nature might come down on the side of the majority...
Secondly, it increases mating. Having a bigger brain means our heads are shaped different--in a more asthetically pleasing fashion. The face is a human's primary means of identification and emotional communication--a clearer face is an obvious evolutionary advantage, within the species.
Um. No. If we all had faces the size of pygmy monkeys, we'd probably have designs on our chests or backs, or some other method of recognition. Sexual preference is closely tied to genetic fitness, not the other way around.
Consider that healthy-but-pug-ugly A has a 85% chance of surviving to breeding-age (and hanging around afterwards for protection etc.) because he's got strong arms. Handsome bigheaded B has only a 50% chance of making it, but he looks really cool. Unfortunately for B, the numbers are against him. No matter how many doting females are queueing up (hah!), if he only has a 50% chance of making it, his genes (and those of the doting females, since they choose B) are far more likely to be swept down evolution's sewer. The corollary is that the female
From the article: "While I drew, Snyder continued his lecture. ''You could call this a creativity-amplifying machine. It's a way of altering our states of mind without taking drugs like mescaline. You can make people see the raw data of the world as it is. As it is actually represented in the unconscious mind of all of us.''"
What I find seriously funny is the fact that while drug use is seriously shunned around most of the so-called "developed" world, there will be no such outcry over such mental manipulation utilizing this method. So it isn't the end we're concerned about, it's the vehicle.
Do you realize that roughly 6x as many people have died either outright or by drowning after inhaling fumes while behind a motorboat since 1991 than have while taking MDMA (ecstacy)? And that doesn't even include the people who drowned and nobody suspected the poisoning.
Do you realize that between cirrhosis of the liver (alcohol) and deaths resulting from drunk driving accidents there are 60,000 killed in the US every year? And ephedra, creatine and ecstacy are the problems?
Sorry for going off on a rant here. I welcome this sort of research. But it does point out that what Americans are against is not people doing things to their own bodies. What people fear is a boogeyman that has been fueled by a multi-billion dollar industry that they need to maintain. Ie, jobs.
That's because most of the "drugs are bad, mmkay" stem from traditions based on people trying to further their own importance. Marijuana was banned not because it gets you high, but because it makes good rope. Speed was a drug dealt out often for various illnesses and weight loss, but if you have a heart condition and you take a shitload, you can die. No shit? Ecstacy and cocaine, were medicines, until the moral police decided they needed some floor space and "won't somebody think of the children" filled the air.
Cocaine is actually pretty similar in danger to caffeine, except that it is usually found in the US in a purified form. If you got caffeine in a similar form, it would probably kill you. Most cultures use one stimulant and prohibit others; it's pretty random that ours picks caffeine as good and cocaine as bad.
MDMA is quite safe: the main danger is that it encourages activity and suppresses thirst. If you take it at an all-night party without a lot of non-diuretic drinks, you can easily cause severe dehydration. It also causes a temporary burnout if you don't take an SSRI with it. If you try to take it frequently, it has no effect, and taking more than the appropriate dose doesn't matter.
Cannabis makes you think unclearly. If you spend too much time thinking unclearly, you can learn to do so all the time. It is therefore about as bad for you as listening to presidential addresses.
I'm not familiar with what is necessary for safe use of heroine. Most likely, a trained anaesthesiologist.
Things on fire cause cancer and burns; snorting and injecting things makes it easy to surpass the safe dosage (which is much harder to do by ingesting things).
Most controlled substances don't really require more responsibility than legal ones. Of course, street drugs are more dangerous than packaged ones, due to concentration and impurity, and street drug administration methods are more dangerous than using your stomach. Some controlled substances will impair driving, but plenty of OTC drugs do, too, and in worse ways.
I'm saying that people should be allowed to do to themselves what they want. This is not to suggest that people should be allowed to do things like drive while intoxicated. Then you begin to create a hazard for other people. If you want to do ecstacy, go ahead. And if you want to shower your brain with electromagnetic stimulation, go bonkers.
One might object that drug use creates a burden upon the rest of society. Well, so does a belief in a god yet that isn't made illegal.
Please reply with some proof that believe in God, in and of itself, creates a burden on society. I don't get Presbyterian Welfare, last I checked. Religious institutions are supported by their believers. In fact, they draw in money which is used for charitable purposes, thus aiding society. Tithing is part of both Christianity and Islam, and possibly others. It seems like you just threw that in because it's a popular opinion to have around here.
I'm not talking about misguided people who misinterpret their chosen belief system and use that as justification to harm others. That has almost nothing to do with belief; in some cases it's a result of _religion_, but other things could be substituted.
Plenty of hostility around towards people who believe in God.
There people who believe it's a great idea to spend tons of money to overclock their CPUs (when they can just buy a faster one). And they don't get as much hostility around here.
"Two minutes after I started the first drawing, I was instructed to try again. After another two minutes, I tried a third cat, and then in due course a fourth. Then the experiment was over, and the electrodes were removed. I looked down at my work. The first felines were boxy and stiffly unconvincing. But after I had been subjected to about 10 minutes of transcranial magnetic stimulation, their tails had grown more vibrant, more nervous; their faces were personable and convincing. They were even beginning to wear clever expressions. I could hardly recognize them as my own drawings, though I had watched myself render each one, in all its loving detail. Somehow over the course of a very few minutes, and with no additional instruction, I had gone from an incompetent draftsman to a very impressive artist of the feline form."
I would think a more convincing experiment would be to start with the machine turned on for the full "10 minutes", the cat drawing made, then the machine turned off and another made. If this is correct then the second should actually be worse than the first.
The idea that the ability to draw better cats improves as you practice doesn't seem terribly startling.
I can think of all sorts of variations on this experiment. I really want one of these machines!
For example, do the experiment they did on one group. Do a control group. Then do a pre-treatment on both groups (control and experimental). Does the machine actually cause you to learn faster? Can the author actually draw at a vastly superior level now that he not connected to the machine?
Or does the machine provide temporary amplification. I imagine that it is something in between. Often, when I have studied a problem, I gain a huge amount of insight into it. Afterwards, I look back upon the work I have done, am *very* surprised that it turned out so well, but end up at a higher level of skill overall.
If this machine is anything like the way it is described, I'll trade a kidney for one.
And FWIW, which often isn't much in the realm of science, it makes sense that it could be important from a survival standpoint to hide some hypothetical lower structures which, say, count 87 toothpicks, and just send to the upper level an exectutive summary, like 'lots of toothpicks'. Considering what kludges biological things are, it wouldn't surprise me if researchers found that's what was going on.
Having been in a position to...ahem...stare at such textures...I agree with you. Tuning out the detail makes it easier to see the 'that lion's about to eat me' picture.
Repeat after me: the idea that you only use 10% of your brain is a myth. That's right, it's complete bullshit, utter crap. It makes me angry to hear it so often. It's odd really, this is not a case where there is a small group on the fringe claiming this is the fact, no one in the field (mine is computational/integrative neuroscience, which as you can see from just its name is full of buzz-words:P) has held this theory for as long as I've been in it (maye even ever but I don't know that). It's quite non-sensical really, 10% of what? Of the brain's potential? Do you really think we have a quantitative way of measuring that, or of "how much of it you're using even? Do you only count cognition or subconscious functions as well? Which method do you use to measure these and how do you differentiate between the cognitive and the non-cognitive? This pissed Stephen Gould (rest his soul) off enough that he penned an entire article about myths concerning evolution that opened by bitching about this stupid idea. Please, for the love of all that is scientific and good, STOP PROPAGATING THIS STUPID MYTH! At very least on slashdot, you're supposed to be a geek damn it, you ought to know better. *grumbles* 10%, I gotcher 10% right here bub.
Come on, guys. Every single one of us has seen brain scan images of people remembering or doodling. In those images, different parts of the brain do different tasks.
For example, I don't use my occipital lobe when I'm not looking at stuff. Once I start doing visual work, ol' occy goes to work.
The idea that we only use 10% of our brain is silly. We're not latent psychics or telekinetics, nor does the other 90% hold penguins. We just don't use all of our brain all of the time. Throughout the day, though, you'll use all of your brain, unless part has been removed via surgery, accident, or believing the US "President".
This is almost certainly garbage. I'm working in a transcranial magnetic stimulation lab right now, and I've never even heard of the guy doing this stuff. However, the people who criticize his work are basically the most respected people doing TMS right now. I get the sense that he's trying to infer a meaningful pattern from a small number of poorly designed tests.
The usual effect of TMS is just to slow you down by a couple seconds at whatever you're doing. For example, right now we're doing this experiment where we flash words on a screen and have the subject read them out loud. Then eventually we just put a * up on the screen, and they have to recall the last word they saw. By changing the device to send pulses into different parts of the brain, you can find out what is responsible for what. The subjects slow down a bit when you're hitting the right part of the brain.
I mean, this guy could be insanely revolutionary and in five years we'll all be using his machines on our heads to make us geniuses... but I don't think so.
If this kind of stuff gives you a charge, you HAVE to check out Paul Pietsch's work [indiana.edu] on trying to relate brain to mind. He swaps brains in amphibians, mushes them up, etc., and watches the wee beasties more or less get along.
I thought of this because of the question raised in the article about identity: "It probably would change people's ideas of themselves, to say nothing of their ideas of artistic talent."
Another interesting angle is to look into the way the brain may rely on quantum processes... Apollo 14 astronaut Dr. Edgar Mitchell [edmitchellapollo14.com] has done some interesting, if nigh-kooky, summaries of work on this.
This reminded me of two things. First, Larry Niven came up with the idea of a tasp, a device which can remotely stimulate the pleasure center of someone's brain. He also came up with the idea of people running wires directly to the pleasure centers of their brains and thus achieving perpetual electric happiness (like a drug addiction). This might be around the corner.
Second, I am reminded of the "focused" people in Vernor Vinge's A Deepness In The Sky. They were basically slaves, but their masters made them into savants by using machines to permanently disable parts of their brains. That, too, might be around the corner.
Cool in a scary sort of way; science fiction still has predictive power.
Screw that (Score:5, Funny)
Re:Screw that (Score:5, Interesting)
If that kind of autism can be turned on with a "switch", why not other aspects?
Re:Screw that (Score:5, Insightful)
Re:Screw that (Score:5, Funny)
Who knew that talent lay latent within me, just waiting for its release through the method of blinding and nauseating pain?
I always new: Queen rulez! (Score:4, Funny)
Szo
Now if they only had a switch... (Score:5, Funny)
Re:Now if they only had a switch... (Score:5, Funny)
God dammit - I must stop reading Slashdot!
Re:I'm afraid not (Score:5, Funny)
Re:Now if they only had a switch... (Score:5, Funny)
There already is. You don't use IRC allot do you?
10% of brain power and 2% of talents (Score:5, Insightful)
Re:(Was the link dead?) (Score:4, Informative)
n a concrete basement at the University of Sydney, I sat in a chair waiting to have my brain altered by an electromagnetic pulse. My forehead was connected, by a series of electrodes, to a machine that looked something like an old-fashioned beauty-salon hair dryer and was sunnily described to me as a ''Danish-made transcranial magnetic stimulator.'' This was not just any old Danish-made transcranial magnetic stimulator, however; this was the Medtronic Mag Pro, and it was being operated by Allan Snyder, one of the world's most remarkable scientists of human cognition.
Nonetheless, the anticipation of electricity being beamed into my frontal lobes (and the consent form I had just signed) made me a bit nervous. Snyder found that amusing. ''Oh, relax now!'' he said in the thick local accent he has acquired since moving here from America. ''I've done it on myself a hundred times. This is Australia. Legally, it's far more difficult to damage people in Australia than it is in the United States.''
''Damage?'' I groaned.
''You're not going to be damaged,'' he said. ''You're going to be enhanced.''
The Medtronic was originally developed as a tool for brain surgery: by stimulating or slowing down specific regions of the brain, it allowed doctors to monitor the effects of surgery in real time. But it also produced, they noted, strange and unexpected effects on patients' mental functions: one minute they would lose the ability to speak, another minute they would speak easily but would make odd linguistic errors and so on. A number of researchers started to look into the possibilities, but one in particular intrigued Snyder: that people undergoing transcranial magnetic stimulation, or TMS, could suddenly exhibit savant intelligence -- those isolated pockets of geniuslike mental ability that most often appear in autistic people.
Snyder is an impish presence, the very opposite of a venerable professor, let alone an internationally acclaimed scientist. There is a whiff of Woody Allen about him. Did I really want him, I couldn't help thinking, rewiring my hard drive? ''We're not changing your brain physically,'' he assured me. ''You'll only experience differences in your thought processes while you're actually on the machine.'' His assistant made a few final adjustments to the electrodes, and then, as everyone stood back, Snyder flicked the switch.
A series of electromagnetic pulses were being directed into my frontal lobes, but I felt nothing. Snyder instructed me to draw something. ''What would you like to draw?'' he said merrily. ''A cat? You like drawing cats? Cats it is.''
I've seen a million cats in my life, so when I close my eyes, I have no trouble picturing them. But what does a cat really look like, and how do you put it down on paper? I gave it a try but came up with some sort of stick figure, perhaps an insect.
While I drew, Snyder continued his lecture. ''You could call this a creativity-amplifying machine. It's a way of altering our states of mind without taking drugs like mescaline. You can make people see the raw data of the world as it is. As it is actually represented in the unconscious mind of all of us.''
Two minutes after I started the first drawing, I was instructed to try again. After another two minutes, I tried a third cat, and then in due course a fourth. Then the experiment was over, and the electrodes were removed. I looked down at my work. The first felines were boxy and stiffly unconvincing. But after I had been subjected to about 10 minutes of transcranial magnetic stimulation, their tails had grown more vibrant, more nervous; their faces were personable and convincing. They were even beginning to wear clever expressions.
I could hardly recognize them as my own drawings, though I had watched myself render each one, in all its loving detail. Somehow over the course of a very few minutes, and with no additional instruction, I had gone from an incompetent draftsman to a very imp
Great writep (Score:5, Interesting)
In other words, the "humans only use 10% of their brains" canard would more correctly be phrased "humans only use 10% of their brains for walking around and smelling things"...
Re: Great writep (Score:5, Insightful)
Actually an insect is arguably more evolved than us, since it's generation time (and that of it's ancestors) is much smaller. An amoeba is incredibly more evolved, in the sense of total change since it's last common ancestor with mammals.
Selection is not an invisible hand striving for perfection, there's not a biologist on the planet worth his weight in salt who'll say that. Selection is a instantaneous direction, a random walk through the fitness landscape. At every given moment, the selection pressure is for what would most benifit a population (not individual) right now, with no consideration for the future or perfection. There's no appeal to a nature-god, no inferior or superior (let alone perfection), just a constant changing of directions for the immediate survival.
And what about modern CPU's? (Score:5, Insightful)
Re:And what about modern CPU's? (Score:5, Funny)
We are more efficient than silicon so they use us.
It doesn't make it sound like a legend... (Score:4, Interesting)
If kids can lose large portions of their brains and still grow up bright and healthy, then I think that suggests pretty strongly that most of the brain is either functionally redundant or simply unused.
That's a great quote about the 10%, though.
What I want to know is why large animals need a larger brain to handle their bodies, and brain:body mass ratios are considered more important than absolute brain mass. It shouldn't require more data processing just to run a larger body, when most of its processes are regulated without the brain. Furthermore, it sounds like that wasn't the case for dinosaurs, some of which had little bird-sized brains in enormous bodies.
Re:It doesn't make it sound like a legend... (Score:4, Funny)
Forget dinsaurs. I know people who have half their brains in their ass.
-
Slashdot Effect (Score:5, Interesting)
http://www.nytimes.com/2003/06/22/magazine/22S
But for some reason I can get to the NYT.com frontpage, albeit after some delay. Their search results do not show anything matching that article name ("Savant for a Day") and Google doesn't have anything either.
Ca bien. Will just have to wait for it to die off.
Snyder featured in article over a year ago... (Score:5, Informative)
Additionally, the Discover article also talked about the various instances of sudden onset autism. One of the examples presented was the case of a 3 year old girl named Nadia, who was capable of drawing a picture of a horse and rider in such detail that it would've taken a experienced artist to do. The article shows one of Nadia's drawings, which IMHO is very beautifully rendered.
Now, if only to find that machine so I can calculate the Mayan calendar past 2012...
-Cyc
This is from the NY Times? (Score:5, Funny)
Re:I want intelligence for everybody (Score:4, Insightful)
To educate a man in mind and not in morals is to educate a menace to society. -Theodore Roosevelt
A good education really needs to be earned, that way you (are more likely to?) get decent character traits like patience, dedication and sound morals instead of just facts.
=Smidge=
Re:I want intelligence for everybody (Score:5, Insightful)
Who cares if the smart lose their advantage? Given the opportunity to make everyone smarter, would we deny the less-smart people this benefit just because the "naturally smart" people somehow deserve to be smart more than anyone else does?
Even if the elitism of that idea doesn't bother, you, consider that smart people often spend a large portion of their time and energy trying to convince dumb people that their good ideas are in fact good ideas, or trying to explain their ideas to dumb people so that the dumb people can use them effectively. Being surrounded by smart people would make you (as a smart person) much more effective than trying to get your work done with the help of dumb people.
If there was a really easy way of absorbing knowledge, where would the power and fun of knowledge be?
Knowledge's main use isn't to be fun or make you powerful, it's to help get things done. And in any case, I suspect most people find the skillful application of knowledge much more rewarding then the tedious and difficult process of gaining that knowledge.
I'd rather flip a switch... (Score:5, Funny)
Now, off to watch Wapner. Six minutes till Wapner.
Newsflash! (Score:5, Funny)
I bet (Score:5, Funny)
Learn to draw, in a generic style (Score:4, Insightful)
text (Score:4, Informative)
In a concrete basement at the University of Sydney, I sat in a chair waiting to have my brain altered by an electromagnetic pulse. My forehead was connected, by a series of electrodes, to a machine that looked something like an old-fashioned beauty-salon hair dryer and was sunnily described to me as a ''Danish-made transcranial magnetic stimulator.'' This was not just any old Danish-made transcranial magnetic stimulator, however; this was the Medtronic Mag Pro, and it was being operated by Allan Snyder, one of the world's most remarkable scientists of human cognition.
Nonetheless, the anticipation of electricity being beamed into my frontal lobes (and the consent form I had just signed) made me a bit nervous. Snyder found that amusing. ''Oh, relax now!'' he said in the thick local accent he has acquired since moving here from America. ''I've done it on myself a hundred times. This is Australia. Legally, it's far more difficult to damage people in Australia than it is in the United States.''
''Damage?'' I groaned.
''You're not going to be damaged,'' he said. ''You're going to be enhanced.''
The Medtronic was originally developed as a tool for brain surgery: by stimulating or slowing down specific regions of the brain, it allowed doctors to monitor the effects of surgery in real time. But it also produced, they noted, strange and unexpected effects on patients' mental functions: one minute they would lose the ability to speak, another minute they would speak easily but would make odd linguistic errors and so on. A number of researchers started to look into the possibilities, but one in particular intrigued Snyder: that people undergoing transcranial magnetic stimulation, or TMS, could suddenly exhibit savant intelligence -- those isolated pockets of geniuslike mental ability that most often appear in autistic people.
Snyder is an impish presence, the very opposite of a venerable professor, let alone an internationally acclaimed scientist. There is a whiff of Woody Allen about him. Did I really want him, I couldn't help thinking, rewiring my hard drive? ''We're not changing your brain physically,'' he assured me. ''You'll only experience differences in your thought processes while you're actually on the machine.'' His assistant made a few final adjustments to the electrodes, and then, as everyone stood back, Snyder flicked the switch.
A series of electromagnetic pulses were being directed into my frontal lobes, but I felt nothing. Snyder instructed me to draw something. ''What would you like to draw?'' he said merrily. ''A cat? You like drawing cats? Cats it is.''
I've seen a million cats in my life, so when I close my eyes, I have no trouble picturing them. But what does a cat really look like, and how do you put it down on paper? I gave it a try but came up with some sort of stick figure, perhaps an insect.
While I drew, Snyder continued his lecture. ''You could call this a creativity-amplifying machine. It's a way of altering our states of mind without taking drugs like mescaline. You can make people see the raw data of the world as it is. As it is actually represented in the unconscious mind of all of us.''
Two minutes after I started the first drawing, I was instructed to try again. After another two minutes, I tried a third cat, and then in due course a fourth. Then the experiment was over, and the electrodes were removed. I looked down at my work. The first felines were boxy and stiffly unconvincing. But after I had been subjected to about 10 minutes of transcranial magnetic stimulation, their tails had grown more vibrant, more nervous; their faces were personable and convincing. They were even beginning to wear clever expressions.
I could hardly recognize them as my own drawings, though I had watched myself render each one, in all its loving detail. Somehow over the course of a very few minutes, and with no additional instruction, I had gone from an incompetent draftsman to a very impressive artist of the feline form.
Snyder looked over my shoulder. ''Well, how about that? Leonardo would be envious.'' Or turning in his grave, I thought.
As remarkable as the cat-drawing lesson was, it was just a hint of Snyder's work and its implications for the study of cognition. He has used TMS dozens of times on university students, measuring its effect on their ability to draw, to proofread and to perform difficult mathematical functions like identifying prime numbers by sight. Hooked up to the machine, 40 percent of test subjects exhibited extraordinary, and newfound, mental skills. That Snyder was able to induce these remarkable feats in a controlled, repeatable experiment is more than just a great party trick; it's a breakthrough that may lead to a revolution in the way we understand the limits of our own intelligence -- and the functioning of the human brain in general.
Snyder's work began with a curiosity about autism. Though there is little consensus about what causes this baffling -- and increasingly common -- disorder, it seems safe to say that autistic people share certain qualities: they tend to be rigid, mechanical and emotionally dissociated. They manifest what autism's great ''discoverer,'' Leo Kanner, called ''an anxiously obsessive desire for the preservation of sameness.'' And they tend to interpret information in a hyperliteral way, using ''a kind of language which does not seem intended to serve interpersonal communication.''
For example, Snyder says, when autistic test subjects came to see him at the university, they would often get lost in the main quad. They might have been there 10 times before, but each time the shadows were in slightly different positions, and the difference overwhelmed their sense of place. ''They can't grasp a general concept equivalent to the word 'quad,''' he explains. ''If it changes appearance even slightly, then they have to start all over again.''
Despite these limitations, a small subset of autistics, known as savants, can also perform superspecialized mental feats. Perhaps the most famous savant was Dustin Hoffman's character in ''Rain Man,'' who could count hundreds of matchsticks at a glance. But the truth has often been even stranger: one celebrated savant in turn-of-the-century Vienna could calculate the day of the week for every date since the birth of Christ. Other savants can speak dozens of languages without formally studying any of them or can reproduce music at the piano after only a single hearing. A savant studied by the English doctor J. Langdon Down in 1887 had memorized every page of Gibbon's ''Decline and Fall of the Roman Empire.'' At the beginning of the 19th century, the splendidly named Gottfried Mind became famous all over Europe for the amazing pictures he drew of cats.
The conventional wisdom has long been that autistics' hyperliteral thought processes were completely separate from the more contextual, nuanced, social way that most adults think, a different mental function altogether. And so, by extension, the extraordinary skills of autistic savants have been regarded as flukes, almost inhuman feats that average minds could never achieve.
Snyder argues that all those assumptions -- about everything from the way autistic savants behave down to the basic brain functions that cause them to do so -- are mistaken. Autistic thought isn't wholly incompatible with ordinary thought, he says; it's just a variation on it, a more extreme example.
He first got the idea after reading ''The Man Who Mistook His Wife for a Hat,'' in which Oliver Sacks explores the link between autism and a very specific kind of brain damage. If neurological impairment is the cause of the autistic's disabilities, Snyder wondered, could it be the cause of their geniuslike abilities, too? By shutting down certain mental functions -- the capacity to think conceptually, categorically, contextually -- did this impairment allow other mental functions to flourish? Could brain damage, in short, actually make you brilliant?
In a 1999 paper called ''Is Integer Arithmetic Fundamental to Mental Processing? The Mind's Secret Arithmetic,'' Snyder and D. John Mitchell considered the example of an autistic infant, whose mind ''is not concept driven. . . . In our view such a mind can tap into lower level details not readily available to introspection by normal individuals.'' These children, they wrote, seem ''to be aware of information in some raw or interim state prior to it being formed into the 'ultimate picture.''' Most astonishing, they went on, ''the mental machinery for performing lightning fast integer arithmetic calculations could be within us all.''
And so Snyder turned to TMS, in an attempt, as he says, ''to enhance the brain by shutting off certain parts of it.''
''In a way, savants are the great enigma of today's neurology,'' says Prof. Joy Hirsch, director of the Functional M.R.I. Research Center at Columbia University. ''They exist in all cultures and are a distinct type. Why? How? We don't know. Yet understanding the savant will help provide insight into the whole neurophysiological underpinning of human behavior. That's why Snyder's ideas are so exciting -- he's asking a really fundamental question, which no one has yet answered.''
If Snyder's suspicions are correct, in fact, and savants have not more brainpower than the rest of us, but less, then it's even possible that everybody starts out life as a savant. Look, for example, at the ease with which children master complex languages -- a mysterious skill that seems to shut off automatically around the age of 12. ''What we're doing is counterintuitive,'' Snyder tells me. ''We're saying that all these genius skills are easy, they're natural. Our brain does them naturally. Like walking. Do you know how difficult walking is? It's much more difficult than drawing!''
To prove his point, he hooks me up to the Medtronic Mag Pro again and asks me to read the following lines:
A bird in the hand
is worth two in the
the bush
''A bird in the hand is worth two in the bush,'' I say.
''Again,'' Snyder says, and smiles.
So once more: ''A bird in the hand is worth two in the bush.'' He makes me repeat it five or six times, slowing me down until he has me reading each word with aching slowness.
Then he switches on the machine. He is trying to suppress those parts of my brain responsible for thinking contextually, for making connections. Without them, I will be able to see things more as an autistic might.
After five minutes of electric pulses, I read the card again. Only then do I see -- instantly -- that the card contains an extra ''the.''
On my own, I had been looking for patterns, trying to coax the words on the page into a coherent, familiar whole. But ''on the machine,'' he says, ''you start seeing what's actually there, not what you think is there.''
Snyder's theories are bolstered by the documented cases in which sudden brain damage has produced savant abilities almost overnight. He cites the case of Orlando Serrell, a 10-year-old street kid who was hit on the head and immediately began doing calendrical calculations of baffling complexity. Snyder argues that we all have Serrell's powers. ''We remember virtually everything, but we recall very little,'' Snyder explains. ''Now isn't that strange? Everything is in there'' -- he taps the side of his head. ''Buried deep in all our brains are phenomenal abilities, which we lose for some reason as we develop into 'normal' conceptual creatures. But what if we could reawaken them?''
Not all of Snyder's colleagues agree with his theories. Michael Howe, an eminent psychologist at the University of Exeter in Britain who died last year, argued that savantism (and genius itself) was largely a result of incessant practice and specialization. ''The main difference between experts and savants,'' he once told New Scientist magazine, ''is that savants do things which most of us couldn't be bothered to get good at.''
Robert Hendren, executive director of the M.I.N.D. Institute at the University of California at Davis, brought that concept down to my level: ''If you drew 20 cats one after the other, they'd probably get better anyway.'' Like most neuroscientists, he doubts that an electromagnetic pulse can stimulate the brain into creativity: ''I'm not sure I see how TMS can actually alter the way your brain works. There's a chance that Snyder is right. But it's still very experimental.''
Tomas Paus, an associate professor of neuroscience at McGill University, who has done extensive TMS research, is even more dubious. ''I don't believe TMS can ever elicit complex behavior,'' he says.
But even skeptics like Hendren and Paus concede that by intensifying the neural activity of one part of the brain while slowing or shutting down others, TMS can have remarkable effects. One of its most successful applications has been in the realm of psychiatry, where it is now used to dispel the ''inner voices'' of schizophrenics, or to combat clinical depression without the damaging side effects of electroshock therapy. (NeuroNetics, an Atlanta company, is developing a TMS machine designed for just this purpose, which will probably be released in 2006, pending F.D.A. approval.)
Meanwhile, researchers at the National Institute of Neurological Disorders and Stroke found that TMS applied to the prefrontal cortex enabled subjects to solve geometric puzzles much more rapidly. Alvaro Pascual-Leone, associate professor of neurology at the Beth Israel Deaconess Medical Center in Boston (who, through his work at the Laboratory for Magnetic Brain Stimulation, has been one of the American visionaries of TMS), has even suggested that TMS could be used to ''prep'' students' minds before lessons.
None of this has gone unnoticed by canny entrepreneurs and visionary scientists. Last year, the Brain Stimulation Laboratory at the Medical University of South Carolina received a $2 million government grant to develop a smaller TMS device that sleep-deprived soldiers could wear to keep them alert. ''It's not 'Star Trek' at all,'' says Ziad Nahas, the laboratory's medical director. ''We've done a lot of the science on reversing cognitive deficiencies in people with insomnia and sleep deficiencies. It works.'' If so, it could be a small leap to the day it boosts soldiers' cognitive functioning under normal circumstances.
And from there, how long before Americans are walking around with humming antidepression helmets and math-enhancing ''hair dryers'' on their heads? Will commercially available TMS machines be used to turn prosaic bank managers into amateur Rembrandts? Snyder has even contemplated video games that harness specialized parts of the brain that are otherwise inaccessible.
''Anything is possible,'' says Prof. Vilayanur Ramachandran, director of the Center for Brain and Cognition at the University of California at San Diego and the noted author of ''Phantoms in the Brain.'' Snyder's theories have not been proved, he allows, but they are brilliantly suggestive: ''We're at the same stage in brain research that biology was in the 19th century. We know almost nothing about the mind. Snyder's theories may sound like 'The X-Files,' but what he's saying is completely plausible. Up to a point the brain is open, malleable and constantly changing. We might well be able to make it run in new ways.'' Of those who dismiss Snyder's theories out of hand, he shrugs: ''People are often blind to new ideas. Especially scientists.''
Bruce L. Miller, the A.W. and Mary Margaret Claussen distinguished professor in neurology at the University of California at San Francisco, is intrigued by Snyder's experiments and his attempts to understand the physiological basis of cognition. But he points out that certain profound questions about artificially altered intelligence have not yet been answered. ''Do we really want these abilities?'' he asks. ''Wouldn't it change my idea of myself if I could suddenly paint amazing pictures?''
It probably would change people's ideas of themselves, to say nothing of their ideas of artistic talent. And though that prospect might discomfort Miller, there are no doubt others whom it would thrill. But could anyone really guess, in advance, how their lives might be affected by instant creativity, instant intelligence, instant happiness? Or by their disappearance, just as instantly, once the TMS is switched off?
As he walked me out of the university -- a place so Gothic that it could be Oxford, but for the intensely flowering jacaranda in one corner and the strange Southern Hemisphere birds flitting about -- and toward the freeway back to downtown Sydney, Snyder for his part radiated the most convincingly ebullient optimism. ''Remember that old saw which says that we only use a small part our brain? Well, it might just be true. Except that now we can actually prove it physically and experimentally. That has to be significant. I mean, it has to be, doesn't it?''
We stopped for a moment by the side of the roaring traffic and looked up at a haze in the sky. Snyder's eyes contracted inquisitively as he pieced together the unfamiliar facts (brown smoke, just outside Sydney) and eased them into a familiar narrative framework (the forest fires that had been raging all week). It was an effortless little bit of deductive, nonliteral thinking -- the sort of thing that human beings, unaided by TMS, do a thousand times a day. Then, in an instant, he switched back to our conversation and picked up his train of thought. ''More important than that, we can change our own intelligence in unexpected ways. Why would we not want to explore that?''
Drawing on the right side of the Brain (Score:5, Interesting)
To use the technique, we were told to lay out our drawing pads, place our hands into the middle of the pad and never to look at our hands as we were drawing. We were supposed to focus on what we were drawing and then try to remember where we left our hands in space without actually seeing where they were. I was told that I could glance down at my hand from time to time, but that I should not look at my hands while actually drawing.
Whatever the technique did do my cognitive process seemed to work. My normal drawing style looked like figures 1 and 2. While I used the right side technique, my drawing looked like figure 3, with my lines conveying more movement and being more a stylized reproduction.
Maybe this guyâ(TM)s apparatus is simply forcing the participants not to look at their hands while drawing. Seems a lot more controls would be needed to say magnetic fields have anything to do with this phenomenon.
Large cranium... (Score:5, Insightful)
Re:Large cranium... (Score:5, Insightful)
Then why do I have an appendix? (Or slim body hairs?)
Evolution does not look at any one characteristic. It looks at the whole of the being. And, between equally fit species, there's still a measure of chance.
Let's ignore the obvious rebuttal to your point (use of the brain's savant abilities is proportional; if we have a brain half the design, we might have half of the all-around intelligence) and focus on the evolutionary advantages of having unused brain tissue.
First off, we're able to survive brain damage much easier. Being able to be thwacked in the head and still bring food home--and maybe go out and hunt some more the next day--is an obvious evolutionary advantage.
Secondly, it increases mating. Having a bigger brain means our heads are shaped different--in a more asthetically pleasing fashion. The face is a human's primary means of identification and emotional communication--a clearer face is an obvious evolutionary advantage, within the species.
Thirdly, it's entirely possible that over the uncounted generations of prehistory, human-ancestor-groups who had savants among them simply outperformed other human-ancestor-groups who did not, thus neccistating a retention of the savant abilities. Not a clear evolutionary advantage, but a distinct possibility.
While your childbirth arugment is a good one, for it to work we'd need to have some mechanism to actually shrink brain mass at the start. Bugger me if I can think of one that'd work--larger hips would be a much easier evolutionary adaptation.
Re:Large cranium... (Score:5, Insightful)
Because there is very little selective pressure to remove these low-cost (in evolutionary terms) additions to the body. This is assuming that you can get rid of X without affecting Y, which is a heck of an assumption - most of our body parts are created/regulated by the interaction over time of *lots* of different genetic codes, your overall genetic code is not a blueprint you can just erase part of... Besides, they're not useful *now*. They presumably were *once*, and they may yet be again. Not in our lifetime, I suspect :-) but possibly in the future...
How do you *know* it's proportional ? It may be highly non-linear in nature. Intelligence could be an emergent property, as opposed to intrinsic. There could be a minimum (or maximum) neuron-quantity threshold for intelligence to occur, the decision-surface for relative intelligence could be as complex as a fractal plane. We don't know.
I think you're overlooking the incredibly difficult process humans go through in childbirth. The non-assisted mortality rate (for both mother and child) is far higher than any other mammalian species on the planet. Primate females almost always give birth without excessive labour. Human females labour can last over several hours, although today the child is more likely to be induced or surgically delivered. Only 200 years ago, death in childbirth was commonplace for those who could not afford assistance.
In contrast, being hit on the head hard enough to significantly break the skull will pretty much cause damage whatever size brain you have. Since all the higher-order functionality is on the outside of the brain (grey matter), that's the area that would be damaged anyway. If you don't break the skull, you're likely to just get a bruise either way, so long as you don't make a habit of it...
Don't forget that (unless our ancestors were particularly keen on headbutting cliffs) this would be an effect on 1 person. The do-or-die childbirth thing is an issue for every human born. I suspect nature might come down on the side of the majority...
Um. No. If we all had faces the size of pygmy monkeys, we'd probably have designs on our chests or backs, or some other method of recognition. Sexual preference is closely tied to genetic fitness, not the other way around.
Consider that healthy-but-pug-ugly A has a 85% chance of surviving to breeding-age (and hanging around afterwards for protection etc.) because he's got strong arms. Handsome bigheaded B has only a 50% chance of making it, but he looks really cool. Unfortunately for B, the numbers are against him. No matter how many doting females are queueing up (hah!), if he only has a 50% chance of making it, his genes (and those of the doting females, since they choose B) are far more likely to be swept down evolution's sewer. The corollary is that the female
Brain Wars (Score:5, Interesting)
"While I drew, Snyder continued his lecture. ''You could call this a creativity-amplifying machine. It's a way of altering our states of mind without taking drugs like mescaline. You can make people see the raw data of the world as it is. As it is actually represented in the unconscious mind of all of us.''"
What I find seriously funny is the fact that while drug use is seriously shunned around most of the so-called "developed" world, there will be no such outcry over such mental manipulation utilizing this method. So it isn't the end we're concerned about, it's the vehicle.
Do you realize that roughly 6x as many people have died either outright or by drowning after inhaling fumes while behind a motorboat since 1991 than have while taking MDMA (ecstacy)? And that doesn't even include the people who drowned and nobody suspected the poisoning.
Do you realize that between cirrhosis of the liver (alcohol) and deaths resulting from drunk driving accidents there are 60,000 killed in the US every year? And ephedra, creatine and ecstacy are the problems?
Sorry for going off on a rant here. I welcome this sort of research. But it does point out that what Americans are against is not people doing things to their own bodies. What people fear is a boogeyman that has been fueled by a multi-billion dollar industry that they need to maintain. Ie, jobs.
w00t.
Re:Brain Wars (Score:5, Insightful)
Re:Brain Wars (Score:4, Insightful)
MDMA is quite safe: the main danger is that it encourages activity and suppresses thirst. If you take it at an all-night party without a lot of non-diuretic drinks, you can easily cause severe dehydration. It also causes a temporary burnout if you don't take an SSRI with it. If you try to take it frequently, it has no effect, and taking more than the appropriate dose doesn't matter.
Cannabis makes you think unclearly. If you spend too much time thinking unclearly, you can learn to do so all the time. It is therefore about as bad for you as listening to presidential addresses.
I'm not familiar with what is necessary for safe use of heroine. Most likely, a trained anaesthesiologist.
Things on fire cause cancer and burns; snorting and injecting things makes it easy to surpass the safe dosage (which is much harder to do by ingesting things).
Most controlled substances don't really require more responsibility than legal ones. Of course, street drugs are more dangerous than packaged ones, due to concentration and impurity, and street drug administration methods are more dangerous than using your stomach. Some controlled substances will impair driving, but plenty of OTC drugs do, too, and in worse ways.
Re:Brain Wars (Score:5, Insightful)
One might object that drug use creates a burden upon the rest of society. Well, so does a belief in a god yet that isn't made illegal.
Re:Brain Wars (Score:4, Insightful)
I'm not talking about misguided people who misinterpret their chosen belief system and use that as justification to harm others. That has almost nothing to do with belief; in some cases it's a result of _religion_, but other things could be substituted.
Re:Brain Wars (Score:5, Insightful)
There people who believe it's a great idea to spend tons of money to overclock their CPUs (when they can just buy a faster one). And they don't get as much hostility around here.
And why is that?
The Experiment in Reverse (Score:5, Insightful)
I would think a more convincing experiment would be to start with the machine turned on for the full "10 minutes", the cat drawing made, then the machine turned off and another made. If this is correct then the second should actually be worse than the first.
The idea that the ability to draw better cats improves as you practice doesn't seem terribly startling.
Re:The Experiment in Reverse (Score:4, Insightful)
For example, do the experiment they did on one group. Do a control group. Then do a pre-treatment on both groups (control and experimental). Does the machine actually cause you to learn faster? Can the author actually draw at a vastly superior level now that he not connected to the machine?
Or does the machine provide temporary amplification. I imagine that it is something in between. Often, when I have studied a problem, I gain a huge amount of insight into it. Afterwards, I look back upon the work I have done, am *very* surprised that it turned out so well, but end up at a higher level of skill overall.
If this machine is anything like the way it is described, I'll trade a kidney for one.
interesting (Score:5, Interesting)
Re:interesting (Score:4, Funny)
NO!! (Score:5, Informative)
We use 100% of our brains - just not all at once. (Score:5, Interesting)
For example, I don't use my occipital lobe when I'm not looking at stuff. Once I start doing visual work, ol' occy goes to work.
The idea that we only use 10% of our brain is silly. We're not latent psychics or telekinetics, nor does the other 90% hold penguins. We just don't use all of our brain all of the time. Throughout the day, though, you'll use all of your brain, unless part has been removed via surgery, accident, or believing the US "President".
CAUTION ! (Score:4, Insightful)
-- (but in fact only ÂAPT has Super Cow PowersÂ)
Download to brain (Score:5, Funny)
I would rather get on my cell phone and say "Tank, I need a pilot program for a V-212 helicopter."
BS (Score:5, Informative)
The usual effect of TMS is just to slow you down by a couple seconds at whatever you're doing. For example, right now we're doing this experiment where we flash words on a screen and have the subject read them out loud. Then eventually we just put a * up on the screen, and they have to recall the last word they saw. By changing the device to send pulses into different parts of the brain, you can find out what is responsible for what. The subjects slow down a bit when you're hitting the right part of the brain.
I mean, this guy could be insanely revolutionary and in five years we'll all be using his machines on our heads to make us geniuses... but I don't think so.
btm
I've known about this for years (Score:5, Funny)
Will power baby.
Works everytime!
shufflebrain: where is the mind? (Score:4, Interesting)
I thought of this because of the question raised in the article about identity: "It probably would change people's ideas of themselves, to say nothing of their ideas of artistic talent."
Another interesting angle is to look into the way the brain may rely on quantum processes... Apollo 14 astronaut Dr. Edgar Mitchell [edmitchellapollo14.com] has done some interesting, if nigh-kooky, summaries of work on this.
Coming Soon (Score:5, Insightful)
This reminded me of two things. First, Larry Niven came up with the idea of a tasp, a device which can remotely stimulate the pleasure center of someone's brain. He also came up with the idea of people running wires directly to the pleasure centers of their brains and thus achieving perpetual electric happiness (like a drug addiction). This might be around the corner.
Second, I am reminded of the "focused" people in Vernor Vinge's A Deepness In The Sky. They were basically slaves, but their masters made them into savants by using machines to permanently disable parts of their brains. That, too, might be around the corner.
Cool in a scary sort of way; science fiction still has predictive power.