azurelunatic: Vivid pink Alaskan wild rose. (Default)
Azure Jane Lunatic (Azz) 🌺 ([personal profile] azurelunatic) wrote2003-09-12 06:06 pm
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Time for Space

Time for Space is a really nifty concept. Normal-visioned people have two eyes, viewing the world slightly offset from each other, with the ability to percieve depth through the slight differences in the images.

I now know two people for sure who only see in flat -- [livejournal.com profile] shywickedpixie, for whom I'm linking this, and Mama. Mama should have had glasses long before she finally did get them (which was very young) and thus developed not being able to functionally see out of her bad eye. She adjusted to the glasses, and she was able to see out of that eye afterwards, but her brain never adjusted to having two visual channels. Thus, she can only see out of one eye at a time. She has no depth perception. (I must, at some point, write up the list of ARRRGHs about this.) When we got the chickens, FatherSir explained how chicken vision works -- with eyes on either side of the head, birds like that can't see depth either, and have to simulate it by that weird head-jerking walk.

Thus, I've grown up paying a little more attention to my two working eyes than some other people might. I've learned that my right eye is dominant, but that I can switch dominant eyes at will for short periods of time.

Looking at the photos carefully, both with two eyes and with one closed, I find them very, very good. If you stare a little past them, looking at them with only one eye, and try to ignore the jiggling, it looks very 3-D to me.

I wonder if you could tune the timing on the jiggling to something that the human eye might be able to overlook, while still preserving the effect...

Thanks to [livejournal.com profile] renwick for linking this again.
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[identity profile] chorus-of-chaos.livejournal.com 2003-09-12 06:19 pm (UTC)(link)
would be interesting to see how they correlate this with something like prosopagnosia
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[identity profile] chorus-of-chaos.livejournal.com 2003-09-13 10:34 am (UTC)(link)
it's commonly called faceblindness, although it affects other aspects of neurlogical function as well. There are varying degrees of severity, in my case I can look at at someone and have a vague concept of say, hair color or a dramatic mole or birth mark, but uther than that I can't remember the face. I recognize people by thier voices and their body language.

[identity profile] sionainn.livejournal.com 2003-09-12 06:47 pm (UTC)(link)
Interestingly enough, though I do not have normal bi-nocular vision, I have a form of depth perception (being blind in one eye from birth causes your brain to compensate). To me, I don't "see" flat... I "see" depth & layers and distance. I am a fairly good judge of distance when I'm moving towards an object, but not always in the reverse when an object is moving towards me.

But otherwise, my perception is that I see "depth."

I think when scientists say that it is "impossible" to have depth perception with vision in only one eye, they are entirely mistaken. I think it's only "impossible" when the visual cortex is used to receiving information from two working eyes and interpreting the differences and creating "depth." My visual cortex has never received any information from my right eye... therefore, it creates it's own form of depth.

*shrug* I dunno...

[identity profile] sionainn.livejournal.com 2003-09-12 06:48 pm (UTC)(link)
Do blind people dream in color?

Do deaf people dream in stero symphony?


ext_4968: A heraldric style illustration of a dragon, representing Orion Sandstorrm. (contemplative between)

they're dreams. of course they do.

[identity profile] waywind.livejournal.com 2003-09-13 12:37 am (UTC)(link)
I've known lots of people who have dreamed in colors that nobody can see in the waking world- colors that are vibrant green and red at the same time, and light black that isn't grey, and others that can't even go into words at all.

Most of us dream in multiple perspectives and greater depth- being able to see not only from our eyes, but from the eyes of other people standing in the room, and from the back of your head and the palms of your hands and from random points in the air so that they can see their own face, seeing from everywhere all at the same time. So intense is it that little sense can be made from it when awake.

I think if all that's possible in dreams, someone completely blind from birth might be able to see in their dreams, now and then. Although, they might not realise/identify it as such until much later.

[identity profile] sithjawa.livejournal.com 2003-09-12 10:12 pm (UTC)(link)
I can see the 3d, but now after staring at all that wiggle my monitor appears to be writhing! Creepy!