Will a person see UPSIDE-DOWN if their EYEBALLS...?
If their Eyeballs were removed and then put back in UPSIDE DOWN ?
- If they were never disconnected from the optic nerve you would see upside down for a while then the brain would figure out what was happening and interpret the signals correctly..... in theory.00
- Oh yeah, what would happen would be for a while everything would be upside down but then cause your brain is clever is would sort it out and then everything would be the right way up, but if they (the eeeevil mad scientists who did it :P) fixed it everything would be upside down until your brain caught up and put it the right way round again.00
- No, The image goes though your eye upside down and is corrected by your retina. Your eye balls are round it wouldn't matter.00
- You already see upside-down.
It is true that the images formed on your retina are upside-down. It is also true that most people have two eyes, and therefore two retinas. Why, then, don't you see two distinct images? For the same reason that you don't see everything upside-down. One of our most remarkable tools - the brain - is hard at work for us at this task.
Processing visual information is a complex task - it takes up a relatively large portion of the brain compared to other senses. This is because your brain performs several tasks to make images 'easier' to see. One, of course, is combining the two images, which is helped by the corpus callosum, the tiny part of your brain which joins the two big hemispheres. The other part is handled in the optic part of your brain itself, and part of its job is to make images right-side-up. It does this because your brain is so USED to seeing things upside-down that it eventually adjusts to it. After all, it's a lot easier to flip the image over than it is to try and coordinate your hands and legs with an upside-down world! As a result, though, it is believed that for the first few days, babies see everything upside-down. This is because they have not become used to vision.
Your brain CAN be retrained though. In one psychological study, participants were asked to wear inverting lenses - lenses that invert the image BEFORE they get to your eye, so that when your eye inverts it, it's right-side-up. At first, everything appeared upside-down to the participants. But, after a few days, people began to report that everything appeared right-side-up! As a second part of the study, the people were asked to take the glasses off. Because they were now used to the lenses, their NORMAL vision appeared upside-down!! Within a day, though, their vision returned to normal. The reason you don't see everything upside-down, then, is simply because it's easier to think about right-side-up!
Answered by: Michael Brady, Computer Engineering Undergrad., NCSU, Raleigh10
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