Motor Function:disabled?

Discussion in 'Intelligence & Machines' started by Rick, Nov 4, 2001.

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  1. Rick Valued Senior Member

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    I have heard that motor functions are disabled during sleep period,then why is it that say if a person is falling(in his dream)from a big height,he suddenly shakes up responding to it,as if he fell down.

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  3. Stryder Keeper of "good" ideas. Valued Senior Member

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    (This isn't fully Factual as the human mind is constantly undergoing revamps of understanding.)

    During consciousness, the human brain is runnng many multitasked processes throughout the whole of the head. Your frontal lobes do most of the calculative work while your temporal lobes are a mixture of memory and processing for your voice and hearing. At the back of the head is the Occipital Lobe where sight is suppose to be processed.
    the Parietal lobe is suppose to be the area for Movement, namely I lift a mug, that's the area that the suggestion goes to.
    While the Cerebellum is suppose to be where the complex movements of muscles as a well oiled machine are directed from the cerebral cortex thats acting like the central processor.

    When you fall asleep you slip into a state where your relax and you try not to process things, if you do you keep awake. When you fall asleep your frontal lobe lowers in activity considerably... This is mainly because your activity is concentrating more within the centre of your head/brain.

    This activity is around the region of the Thalamus, the Senses pass through this like it's some sort of kernel for them. (in regards to an operating system)

    when you fall asleep the thalamus alters in regards to the Pituitary gland and Hyper thalamus (that control the endorphines and the reaction of the body to lower oxygen and heart rate patterns) The Thalamus also makes the Pineal Body start producing melalin (which then goes on to produce melatonin, the pigments that turn a caucasians skin brown in sunlight, or has been produced more in ethnic groups. It also is within the Pupil of the eye and protects ever so slightly from radiation [UV])

    Once these all start to react the changes the thalamus, begins blocking certain signals (So you become less attuned to sound, sight etc)

    Since your asleep and not Processing thoughts with your frontal lobe, it pretty much means that you aren't sending signals to your Parietal lobe. No signals of moving an arm or leg, because you aren't conscious.

    Of course you still breath, and your heart still beats but that is down to the Cerberal cortex and the Cerebellum. (which just controls those macros of muscle movements to a survival type pattern, that is being coordinated with the endorphines that are being controlled by such things as the Pineal body being light sensitive.)

    Only when you find yourself in a dream, and you are falling you begin to note this false sense of danger, that makes your brain activate the Adrenalinal glands and start your frontal lobes processing.

    As soon as you are processing things, then you have the ability to move and shake.
     
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  5. Chagur .Seeker. Registered Senior Member

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    zion ...

    Were that true, would there be the phenomena known as 'sleep walking' and would some people toss and turn all night much to the consternation of their bed partners?
     
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  7. Rick Valued Senior Member

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    Re: zion ...

    HI CHagur,
    during the sleep period as far as i know,body is in paralysed condition so as to prevent any movement,now,people who walk during their sleep are said to have a disease,this occurs due to the fact that the body is not perfectly in the paralysed condition...anyway nice to see you here

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  8. Stryder Keeper of "good" ideas. Valued Senior Member

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    I would say that sleepwalking isn't a disease just a condition.
    I would also say that the reason a person might sleepwalk is down to if they are having "calculative thoughts" like Going to the fridge to get a bite ot eat, or one that is common in children is Bed wetting. (Using the toilet dreams)

    Simply, the mind isn't suppose to be using the frontal lobes but for some reason (probably down to some nerve stimulant like Caffine) they are operating, when in reality a normal person would have lost most processes as the outlayers of the brain go into lower levels of frequency.

    Of course the brain reacts like a person is asleep.
    Even though they still have their senses "offline in their sleeping state, the brain doesn't notice that it's computing with the frontal lobes, and the frontal lobes send commands that are in relationship to a dream to the Parietal Lobe.
    The Parietal lobe then sends the commands through the cerebral cortex with the messages of moving the legs to walk, or an arm to pick up an object.

    These signals then are given more "tone" as the "macros" (lots of messages that are set in a pattern) of muscle movements are added to it from the Cerebellum, and it travels down to the limb that is to move.

    I would suggest to people that suffer sleep walking to monitor what they ate or drank the nights in question (They should notice that what they intake will have some effect on their brain to cause sleepwalking)
     
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