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Thread: Human Brain

  1. #1 Human Brain 
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    Aproximitly how much of our brain are we using? I was under the assumption it was 5% but I was recently told that they found out it was much diffrent now sure how much....


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  3. #2  
    Forum Sophomore NimaRahnemoon's Avatar
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    Heh I just found out that it is a myth. :P At least I'm convinced it is. This website explains it all. http://faculty.washington.edu/chudler/tenper.html


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    Forum Radioactive Isotope cosmictraveler's Avatar
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    The way humans are destroying their planet and its environment it seems they are using less than 1 percent in my opinion.
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    Universal Mind John Galt's Avatar
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    Natural selection would not permit the evolution of an organ that was so demanding of quality and quantity of resources, yet was only partially used. Nature simply does not work like that.
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  6. #5  
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    your all wrong.

    we were using 100%
    problem: we got so far ... we are right back at the start!!!!
    :P
    well i dunno, i supose one way to interpet how much we use it.. is how much we want to use it.
    like somone wants a good job, they study, and use more,
    while somone else wants to be a carpenter, so they go and work.

    as for the other things we dont know bout, like supposing we have psycic abilitys! who knows till we figure it out!

    which leaves me in a bind >> if we need to be smarter to figure it out... we need the smarts that we are trying to figure out.. to make it work! ah .. the code for the safe are locked in the fridge! no one will ever think to look there!
    Stumble on through life.
    Feel free to correct any false information, which unknown to me, may be included in my posts. (also - let this be a disclaimer)
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  7. #6  
    Forum Professor wallaby's Avatar
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    perhaps we just use a small fraction of our mental capacity for things like thinking, study etc.
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  8. #7 ... 
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    When applying my concentrating in a given space of 100 minutes I find that after 10 mintes a blonde lady in a red dress wonders in.
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    One must understand how the brains works to get any kind of understanding about this silly assertion 'we use only 10% of our brain".

    The statement, first of all, is not well defined. What does 'use" mean?

    Facts are, all normal brain cells are all the time metabolizing, and, basically, 'on', that is functioning. The brain has specialized functions, such as speech, hearing, vision, sensation, and many, many others primarily motor functions such as eye movements, coordination, moving of limbs and face, etc., too many to name them all.

    When we speak, the left hemisphere motor, sensory and speech centers light up on MRI scan. There are at least 7 known brain areas which are activated with speech/language, and many of them outside the standard 'speech' centers.

    When we do not use a function, the brain cells are still working, but they are on 'idle'. Within a few hundred ms., they can be used again. The same is true of the other areas, many of which, such as those which subsume breathing, BP, heart rate, and so forthe never really rest.

    So, yes, the brain is on all the time, and it's working all the time. But parts of it are used for special, mainly cortical functions from time to time. But to say that we do not use but 10% of our brain, is simply false. We use all of it, most times, within several minutes intervals every hour, at least. Even while asleep & dreaming.

    So this "10% myth' is just that. Some dam fool belief which got into the popular consciousness and has been misleading people for decades.

    "Popular religion is a mass of superstitions and inconsistencies." Cicero, 1st C. BCE Roman
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    Why woul the evolution create a creature that uses only small piece of his capabillity?
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  11. #10  
    Forum Radioactive Isotope cosmictraveler's Avatar
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    Quote Originally Posted by latehorn
    Why woul the evolution create a creature that uses only small piece of his capabillity?
    Because nature has a sense of humor I' d think...
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    [Why woul the evolution create a creature that uses only small piece of his capabillity?]
    it didn't man used that 100% brain mass and invented beer "hello happyness good bye brain"[/quote]
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  13. #12  
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    Quote Originally Posted by Ophiolite
    Natural selection would not permit the evolution of an organ that was so demanding of quality and quantity of resources, yet was only partially used. Nature simply does not work like that.
    Reproductive organs.
    Why do they want us to believe Conspiracy Theories?
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  14. #13  
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    Quote Originally Posted by latehorn
    Why woul the evolution create a creature that uses only small piece of his capabillity?
    This is a falacy. A common untruth made up by ignorant religious preachers about 70 years ago, and which gets repeated so many times by uneducated people, that the myth begins to be confused with fact and science. A classic urban legend.

    Man uses 100% of his brain.

    Not always at the same time (usually not), but 100% is used in the course of normal living. Different parts of the brain are specialized for different purposes. Depending upon which activity one is doing, different parts are being used. In the end, the entire brain is used.
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  15. #14  
    Universal Mind John Galt's Avatar
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    Quote Originally Posted by j
    Quote Originally Posted by Ophiolite
    Natural selection would not permit the evolution of an organ that was so demanding of quality and quantity of resources, yet was only partially used. Nature simply does not work like that.
    Reproductive organs.
    Not exactly true. These are dual use structures with a waste disposal system running through a recreational area. So much for intelligent design.
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    Forum Masters Degree invert_nexus's Avatar
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    It seems this urban myth came about as follows.
    Let's assume that there is a tumor growing in the motor strip. The portion of the motor strip devoted to the right hand, say.
    It takes damage amounting to 80% of the space devoted to the hand before it really starts to become weakened or paralyzed.
    Thus, it was inferred that we only use 20% of our brains.
    Quite faulty logic, yes?

    The problem is, of course, that someone who uses their hand in fine ways, say a fingerpicking guitar player or some other skill requiring supreme manual dexterity, would notice the damage much sooner.

    It's all a matter of degree.


    So. As has been said many times.
    We use 100% of our brains.
    (Actually, we use about 200% of our brains... Astrocytes are now being looked at as a facilitator of our thought processes rather than mere janitors.
    http://apu.sfn.org/content/Publicati...strocytes.html )
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  17. #16  
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    Interesting link Invert. The article notes that "These [the glial cells] rarely receive attention, yet they are the brain's main inhabitants, outnumbering neurons by about ten to one."
    It is reminiscent of the so-called 'junk DNA" that we are gradually recognising may have a role(s) after all.
    Science, quite properly, only investigates the questions it can reasonably expect to answer. Scientists need to remember, however, that the scope of what is answerable changes continuously. I suspect, contrary to normal expectation, that most scientists are rather unimaginative - solid journeymen, rather than skilled crafstmen. Well capable of the basic leg work that adds a detail here and a decimal point there, but lacking the inventiveness to deliver a whole new perspective.
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  18. #17 ... 
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    Im curious, does the statement "using only 10% of our brain", refer to the capacity at which our brain is active, kinda like CPU usage where everythiong freezes at 100%.
    Or does it refer to the portion of 'time', that our brain is actively doing something? say like calculating or performing arithmetic.
    If this is so, then it sounds fair to say that human beings really only make use of our brain less than ten percent of any given day.
    I havent read through the extra links but I have scanned through the threads so feel free to dispute, im a fresh new and opened mind.
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  19. #18  
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    The perception of everyone I have talked to about this is that we only use 10% of our brain, period. They believe there is this whole untapped resource just waiting to spring into action if we could only find the on switch.
    Your point is that, at any given moment, only 10% of our brain is active. Correct? This is much closer to the truth. My impression is that in terms of areas of the brain that are active at any time, this is a little low; in terms of firing synapses it is too high. But it may not be a bad ball park figure.
    What is clear, in any event, is that all of our brain is made use of from time to time. .... It's just that some people make better use of it than others. :wink:
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  20. #19  
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    Quote Originally Posted by Ophiolite
    The perception of everyone I have talked to about this is that we only use 10% of our brain, period. They believe there is this whole untapped resource just waiting to spring into action if we could only find the on switch.
    It's an urban myth. Wrong. Always has been wrong. Wrong, wrong wrong. Don't believe in myths. Do you know who started the 10% of the brain myth anyways?
    L. Ron Hubbard......[i]Scientologist.......

    Quote Originally Posted by L. Ron Hubbard
    Dianetics: Modern Science of Mental Health, published in 1950, 1988 ed., p. xiii:

    Thought processes are disturbed not only by these engramic commands but also by the fact that the reactive mind reduces, by regenerating unconsciousness, the actual ability to think. Few people possess, because of this, more than 10% of their potential awareness.
    The myth then was repeated in three bestselling "feel good" books by psychics Craig Karges, Michael Clark, Uri Geller in the 90's. Also in the 90's Brian Gumbel hosted a special about the brain where this incorrect myth was re-iterated over and over by psychic Caroline Myss. The ABC show Secret Lives of Men repeated this myth again in another 90's show. The myth also lived in a widespread advertsing campaign in magazines and radios in the 90's. Snopes has a good discussion of the origins of the myth.

    Your point is that, at any given moment, only 10% of our brain is active. Correct? This is much closer to the truth. My impression is that in terms of areas of the brain that are active at any time, this is a little low; in terms of firing synapses it is too high. But it may not be a bad ball park figure.
    It is true that often only parts of the brain are active. But it isn't 10%. It might be 20-30% typically in everyday activities. An intense game of chess uses about 70% of the brain.
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  21. #20  
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    Quote Originally Posted by silylene
    It's an urban myth. Wrong. Always has been wrong. Wrong, wrong wrong. Don't believe in myths.
    I am perfectly aware it is a myth. We have, I think, established that quite clearly earlier in the thread. I am not sure why you are suddenly plunging in repeating what has been agreed.
    Quote Originally Posted by silylene
    It is true that often only parts of the brain are active. But it isn't 10%. It might be 20-30% typically in everyday activities. An intense game of chess uses about 70% of the brain.
    Sources please.
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  22. #21  
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    Quote Originally Posted by silylene
    It is true that often only parts of the brain are active. But it isn't 10%. It might be 20-30% typically in everyday activities. An intense game of chess uses about 70% of the brain.
    Sources please.
    Well I remembered the article a little wrong, as I read the article in Nature nearly 5 years ago. But I found it again on the net. The study found that 80% of the pixels show activity in a grandmaster playing chess (as measured by the number of pixels within the examined slices which became dipoles during a magnetoencephalographic recording.) In other words, of the volume of the brain examined, a grandmaster playing chess uses 80% of that volume. (And yes, I know, the entire brain was not investigated....but a good fractin of it was!)

    http://www.bme.sunysb.edu/bme/people...bin-galley.pdf
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  23. #22  
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    Is this the only link you have. It is returning a 'File corrupt' message on each attempt to open it.

    Edit: Ignore the above. I seem to have a browser problem at this end. I'll try the link again after a reboot.
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  24. #23  
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    im not using enough brain to answer this question
    I don't suffer from insanity, i enjoy every minute of it

    the road to succes is never paved or clearly marked
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