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Thread: Brain Power

  1. #1 Brain Power 
    Forum Freshman Lee W's Avatar
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    I wasn't sure where to put this topic but as i think this might be under evolution i decided to put it in here. Humans only use around 10% of there brain. In this 10% humans have tackled the sea, air land and have just started to tackle the wonders of space. But what if humans could use more then 10%, what do you think would happen.


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    If this is true...the wonders which could still yet to be unearthed by human thinking and development could be unbelievable...


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    Find a reliable source that backs up your assertation. Go on, I bet you can't! :P
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    Who me? Or the 10% thing? I would be interested to know where that cam from...
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    The 10% thing I meant. It's widely told but rarely (actually, never!) backed up.

    http://faculty.washington.edu/chudler/tenper.html
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  7. #6 Re: Brain Power 
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    Quote Originally Posted by Lee W
    I wasn't sure where to put this topic but as i think this might be under evolution i decided to put it in here. Humans only use around 10% of there brain. In this 10% humans have tackled the sea, air land and have just started to tackle the wonders of space. But what if humans could use more then 10%, what do you think would happen.
    A third world war and the earth would have come to an end
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    I think the general jist is that human brains only use 10% (that's a dodgy figure!) at any one time, this is simply because there isnt a sufficient blood supply to the brain to maintain all areas going at once. (Also we dont have sufficient energy to maintain such a high level of activity.)

    even so, what would be the benefit in doing so... people often misinterpret this to mean that more use of the brain means greater intelligence, "intelligence" (I use the term VERY loosely) is only one area of the brain, many others are involved in tasks we arent aware we need, eg heart rate, balance, face recognition, things we may consider trivial. Also, some areas of the brain if all turned on at once would conflict with each other. Basically the brain is never meant to work all at once. (my neuroscience isnt all that concrete yet, next semester material!!!)
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    We use 100 % of our brain, in case of epilepsia. Needless to say that it's not very good
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    let me make thigns clear here
    we humans uses 100% of our brain if we didnt it would have evovled to become just as big as we needed else it would be a waste of energy.

    as for the history of this myth and its origin:
    we humans uses approximently 10% of our brain AT ANY GIVEN TIME, but during a entire day about 100% is used. the first scans showed exacly this 10% usage at any time and from this the myth has come.

    so we dont get better with additional 10% usage, since this happen if you stay awake for to long the brain begins bieng used more and more and requires more and more energy and oxygen and the body is unable after sometime to give the brain the amount of energy it requires. You collapses and your brain begin to fix things so the information is stored but the energy usage decreases to its ordinary 20% if all energy the body has.

    No telekinetic, telepathy or anything is gained by additional usage only problems arrive.
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    Let me put it this way, we never use all of our muscles at any one time yet they all get used at some point. Why does it suddenly seem complicated when you say that about the brain!
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  12. #11  
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    i thought that brain usage was around 17% and not 10%?
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  13. #12  
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    Quote Originally Posted by Nevyn
    i thought that brain usage was around 17% and not 10%?
    its 10% approximently and increases as youre awake more time and is less intelligent :S
    but the energy consumtion is about 20% of total
    I am zelos. Destroyer of planets, exterminator of life, conquerer of worlds. I have come to rule this uiniverse. And there is nothing u pathetic biengs can do to stop me

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    the generally accepted idea is we do use all of our brain. they call it a myth brought on by Margaret Mead and her advertising of some product, referencing Albert Einsteins brain. google *brain usage* and pick your poison.

    i would contest this, however admit, my first recollection of this subject did referenced Einstein and 5%, many years ago. i have also argued for the pro-lessor use or 100% not possible. apparently i was wrong...

    my contention was the human is limited with control; remember that body functions are also controled by the brain. so i felt that if a person ran on a tread mill, reading a book, while giving a lecture on thermal dynamics and maybe watching an intricate documentary on physics, more of the brain was used. even if the went on for ten 30 minutes and a test given after wards with 100% accuracy, this person would use no more of his/her brain, than i am sitting here typing in silence and alone. also i guess the person with no sight, hearing, both or even with any number of other body functions, uses these parts w/o realization.
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  15. #14 Re: Brain Power 
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    Quote Originally Posted by Lee W
    I wasn't sure where to put this topic but as i think this might be under evolution i decided to put it in here. Humans only use around 10% of there brain. In this 10% humans have tackled the sea, air land and have just started to tackle the wonders of space. But what if humans could use more then 10%, what do you think would happen.
    If this was true, President Kennedy would have been sent home with a packet of aspirin.

    The 10-20% figure is complete and utter garbage, which 80% would you like me carve out?
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  16. #15 The 10% Brain Use Myth 
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    The statement, "We use only 10% of our brains" is false; it's a myth. We use all of our brain. Somehow, somewhere, someone started this myth and the popular media keep on repeating this false statement. Soon, everyone believes the statement regardless of the evidence. I have not been able to track down the exact source of this myth, and I have never seen any scientific data to support it.

    According to the believers of this myth, if we used more of our brain, then we could perform super memory feats and have other fantastic mental abilities—maybe we could even move objects with a single thought. Again, I do not know of any data that would support any of this.

    What data were used to come up with the number—10%? Does this mean that you would be just fine if 90% of your brain was removed? If the average human brain weighs 1,400 grams (about 3 lb) and 90% of it was removed, that would leave 140 grams (about 0.3 lb) of brain tissue. That's about the size of a sheep's brain. It is well known that damage to a relatively small area of the brain, such as that caused by a stroke, may cause devastating disabilities. Certain neurological disorders, such as Parkinson's Disease, also affect only specific areas of the brain. The damage caused by these conditions is far less than damage to 90% of the brain.

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    Great direction of this thread. It restores my faith in the prevalence of scientific scrutiny. As a geologist I cringe when I hear similar common 'facts' put out as scientiic gospel in the earth sciences.

    What can be called 'throw away speculation' gets picked up and printed and then reprinted and soon becomes 'a fact' even though it had no original scientific basis. We all are victims of this cycle...usually in areas outside of our field of study.

    There have been articles and books written on the danger of 'assuming' that some commonly known tidbit is based in science and not often repeated misinformation. It's why almost every statement in a scientific paper needs to be referenced and those references themselves have been printed in peer reviewed publications.
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  18. #17  
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    Quote Originally Posted by Jellyologist
    What can be called 'throw away speculation' gets picked up and printed and then reprinted and soon becomes 'a fact' even though it had no original scientific basis. We all are victims of this cycle...usually in areas outside of our field of study.
    'Tis why we must use 100% of our brains and be invovledwith every field of study we can.
    Do not try and bend the spoon. That's impossible. Instead... only realize the truth. There is no spoon. Then you'll see that it is not the spoon that bends, it is only yourself. -Spoon Boy
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  19. #18  
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    The previous two posters would do well to read the thread "Is modern Science losing it?" it deals with speculation and trend becoming scientific fact, a must if you care about science.
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    Several people so far, on this thread have stated how much of the brain they think we use. But, not a single one of them have supplied links to any possible sites that contain concrete evidence. Or, any evidence for that fact.

    Maybe I skimmed the posts too quickly. But, I don't recall any statements that gave any real proof. It's all been speculation, as far as I am so far concerned. Someone could at least back their statements up with a link(s) to a site(s) detailing any experiments that have taken place. This would give them a more solid reason for stating the 'facts' that they have.
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  21. #20  
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    Well Nanobrain, if you believe you use any less than 100% which part would you like to donate to research whilst still alive?

    Let's put it another way, how much of your hands do you use - or any other part of your body?

    There have been enough head injuries resulting in brain damage to know that all the areas are used, in fact adding in minor injuries I think the evidence is quite substantial, not to many people shot through the brain seem to get up and shake it off.
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  22. #21  
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    I think, question hasnt been raised correctly enought to understand it in the same manner. We can be using about 3, maybe more % to think, but another percentage is used by functions that we are not aware of (for example cerebellum functions, afferent stimules by vagus, of when sleeping), and another for movement, etc. . . . But Im for statment, we are using 100% of the brain, not just 10%

    I guess Megabrain is angry by every post that doest make sence, but we all are not into biology or medicine . . . I recommend slighter way of saying, that it is not true . . .
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  23. #22  
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    NO - it's not intended to show 'anger' - I just say what I think, - not always right either - pls don't take offence NB - though I'm sure some people only use a few percent of their brains, eg Bush Blair etc.
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  24. #23  
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    Quote Originally Posted by Megabrain
    NO - it's not intended to show 'anger' - I just say what I think, - not always right either - pls don't take offence NB - though I'm sure some people only use a few percent of their brains, eg Bush Blair etc.
    OK, but couple weaks earlier, you used "utter garbage" also on my post, which I thing was not. But Im glad you´re aware . . .
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  25. #24  
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    Well others might have described it with profanity, for example "What a load of F#####G shite" (expletive deleted) - I sometimes say utter garbage, that is I know it's false.

    "yaa as the flux gets cut, the magnetic field is created!!"

    50 years in electronics, your statement is in error, Perhaps I should have asked if you meant "As the conductor cuts the flux, electricity is generated" - that is true, but flux is a property of the magnetic field so the field has to be there.

    So don't take it to seriously, remember when questions are asked on this site people want the correct answer, I'd always prefer people to say [as I often do] " I think it's because..... but that could all be bollocks" to indicate to the poser of the question they should seek clarification.

    :wink:
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  26. #25  
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    Megabrain,

    I'm not offended. That's one thing I try not to do on forums. I hope that noone is offended by me either. Anyhow, around the emotional junk. Here are two images pulled from http://topofmyhead.blog-city.com/an_...comparison.htm. The first is of a healthy 20 year old. The second, an Alzheimers patient. I'm not going to throw my judgment on these. But, maybe someone can pull a practical statement from them. Maybe this shows nothing useful when it comes to this subject. I figured I would take the chance, and place them for others to judge that.


    Normal PET scan


    Alzheimers PET scan
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  27. #26  
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    As well as alzheimers - have alook around for Huntington's chorea, in that disease the higher brain loses cells at a much faster rate and at random, from all parts of the brain, as a person succumbs to this one gradually sees deterioration in all aspects of brain functions, eventually losing the battle anywhere between the age of 20-60 (it's an hereditary disease).
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  28. #27  
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    Quote Originally Posted by Megabrain
    The previous two posters would do well to read the thread "Is modern Science losing it?" it deals with speculation and trend becoming scientific fact, a must if you care about science.
    I have seen your thread on it but I am preparing for a math exam and don't yet have the time to read it. I will in a day or two though. :wink:
    Do not try and bend the spoon. That's impossible. Instead... only realize the truth. There is no spoon. Then you'll see that it is not the spoon that bends, it is only yourself. -Spoon Boy
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  29. #28  
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    Let me just point out something, does everyone know about the autoregulation of vaculature in the brain? The bosdy basically cannot provide a "full supply" of blood to every nook and cranny in the brain, hence the brain controls where it allocates blood to. (Obviously it all gets SOME blood)

    There were experiments done where it was observed that if you flash a bright suddenly at someone in a dark room, the blood supply to their visual cortex increased (as there was suddenly greater activity there and a demand for oxygen). There have been other experiments done in this way but these days fMRI, has replaced this technique as it s more fun toy for neuroscientists to play with!
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  30. #29  
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    I would bet there is some connection here to migraines since they are caused by blood vessel dilation that is thought to have something to do with overactive nerves.
    Do not try and bend the spoon. That's impossible. Instead... only realize the truth. There is no spoon. Then you'll see that it is not the spoon that bends, it is only yourself. -Spoon Boy
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  31. #30  
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    Migraine is thought to be caused (a least partially) by serotonin levels increasing, that's why drugs target the 5-HT receptor. Byu serotonin in the brain doe cause vasodilation so there's your connection: but that doesnt mean vasodilation causes migraine
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  32. #31  
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    what's seratonin?
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  33. #32  
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    Quote Originally Posted by Nevyn
    what's seratonin?
    Her muscles probably.
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  34. #33  
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    Its a neurotransmitter... deosnt matter that's way off the topic!
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  35. #34  
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    Quote Originally Posted by Robbie
    Migraine is thought to be caused (a least partially) by serotonin levels increasing, that's why drugs target the 5-HT receptor. Byu serotonin in the brain doe cause vasodilation so there's your connection: but that doesnt mean vasodilation causes migraine
    Yes it is getting off topic but just to finish that thought: it's the vasodilation that causes the pain of a migraine. Like swelling of the brain. Thanks for the input by the way, I have not heard of this serotonin idea yet. I shall look into it.
    Do not try and bend the spoon. That's impossible. Instead... only realize the truth. There is no spoon. Then you'll see that it is not the spoon that bends, it is only yourself. -Spoon Boy
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  36. #35  
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    OK, I see t have let on that I know more than I do! I had a look up on pubmed and basically it is established that serotonin plays some role in migraine, but nobody seems to pin down which way around it is.

    In migraine, the blood vessels dilate, there is a drop in serotonin it seems due to this, this leads to the development of a headache. It then seems the body seems to try to replace this by releasing serotonin from other regions in the body, eg the platelets release some serotonin but this is quickly taken up (Im not sure if this is by just the brain or other sources, neurotransmitters tend not to have very large halflives in systemic circulation.)

    then the pharmacological role is the development of 5-HT1 (a type of serotonin receptor) agonists which mimic serotonin which seem to provide some relief, but its still not the full story!

    Swelling of the brain is VERY different and is a different type of headache; trust me!
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