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Thread: Since There’s no Up or Down in Space, How do our Brains Deal With This?

  1. #1
    Join Date
    Jul 2003
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    Since There’s no Up or Down in Space, How do our Brains Deal With This?

    Astronauts and cosmonauts in space have reported spatial disorientation problems, where they find it hard to get a sense of direction, or distinguish between what might be considered “up” or “down.”  This is called “Visual Reorientation Illusions” (VRIs) where the spacecraft floors, walls and ceiling surfaces can suddenly exchange subjective identities. An extreme example of …
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  2. #2
    Join Date
    Apr 2011
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    Norfolk UK and some of me is in Northern France
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    This seems no surprise when pilots can rapidly lose orientation and must rely on instruments and underwater divers can easily lose orientation and observe bubbles to work out which way is up. In the absence of visual clues the vestibular system often gets confused. for example “top shelf vertigo” where tilting the head upwards brings on dizziness. When floating supine in the dark, people can get the sensation of rotation even when as still as can be. When incoming signals conflict, sea sickness is well known and simple tricks like sloping floors can cause disorientation. Presumably astronauts are given instruments to over-ride body clues, as in artificial horizon devices. So is this new?
    sicut vis videre esto
    When we realize that patterns don't exist in the universe, they are a template that we hold to the universe to make sense of it, it all makes a lot more sense.
    Originally Posted by Ken G

  3. #3
    Join Date
    Dec 2020
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    103
    Fortunately, the brain quickly adapts, and it learns to trust the eyes and reprograms signals from the vestibular system to reconcile the mismatch.

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