Tribal Problems

[roxie]

Isn't what these natives have called 'astigmatism'? If someone has this problem and wears corrective glasses you can borrow the glasses and while holding them in front of you look at something through them and rotate them. As you do this the object will appear to elongate and contract with the rotation (assuming you have normal vision). I don't think the brain can compensate for this otherwise prescription glasses for this would be unnecessary. Given the above, I can't see how a person with this problem could fail to be aware of it.

[Chuck]

As an experiment, someone could wear glasses that do the image stretching. I believe that after a few days of wearing them constantly your brain would adapt and you'd see things normally again. I've read material about experiments with glasses that invert what you see. Things look upside down for awhile but you eventally adjust. Certainly someone who's had the images distorted from birth would see things normally. We aren't born with the ability to see. We have to learn to associate the sensations from our eyes with what's really out there.

Actually, the lenses in our eyes already invert what we see. The image on the retina is upside down. No wonder we're all confused.

[ctrlaltdel]

with the upside-down flip... isnt that weird tho? why would we need that? to have a side of the picture which is DOWN? imagine the brain... errr sorry... the whatever that puts together an image for a spider. if he lives on ground, fine. but he can stay on a wall forever. even more, he could stay on the celing forever.
so we have three spiders - ground, wall, ceiling. are all of these spiders' visions different, after having adjusted? or do they change their floor-wall-ceiling orientation so often that it doesnt change for them?