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Imagine shrinking to the size of a doll in your sleep. When you wake up, will you perceive yourself as tiny or the world as being populated by giants? Researchers at Karolinska Institutet in Sweden may have found the answer.
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According to the textbooks, our perception of size and distance is a product of how the brain interprets different visual cues, such as the size of an object on the retina and its movement across the visual field. Some researchers have claimed that our bodies also influence our perception of the world, so that the taller you are, the shorter distances appear to be. However, there has been no way of testing this hypothesis experimentally – until now.
Henrik Ehrsson and his colleagues at Karolinska Institutet have already managed to create the illusion of body-swapping with other people or mannequins(Now they have used the same techniques to create the illusion of having a very small doll-sized body or a very large, 13-foot tall body. Their results, published in the online open access journal PLoS ONE, show for the first time that the size of our bodies has a profound effect on how we perceive the space around us.
"Tiny bodies perceive the world as huge, and vice versa," says study leader Henrik Ehrsson.
The altered perception of space was assessed by having subjects estimate the size of different blocks and then walk over to the blocks with their eyes shut. The illusion of having a small body caused an overestimation of size and distance, an effect that was reversed for large bodies.
One strategy that the brain uses to judge size is through comparison – if a person stands beside a tree it computes the size of both. However, the sensed own body seems to serve as a fundamental reference that affects this and other visual mechanisms.
"Even though we know just how large people are, the illusion makes us perceive other people as giants; it's a very weird experience," says Dr Ehrsson, who also tried the experiment on himself.
The study also shows that it is perfectly possible to create an illusion of body-swapping with extremely small or large artificial bodies; an effect that Dr Ehrsson believes has considerable potential practical applications.
"It's possible, in theory, to produce an illusion of being a microscopic robot that can carry out operations in the human body, or a giant robot repairing a nuclear power plant after an accident," he says.
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[url=http://medicalxpress.com/news/2011-05-scientists-brain-barbie-doll-size.html]Source[/url]
Havn't we basically done this? Just in a different way and on a smaller scale?
Apparently scientists are starting to dig more deeper to the brain.. or human mind.
That's the key organ for us, so it's definitely worth it.
[url]http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0020195#s2[/url]
More info on how the experiments actually work.
If you're small, things look bigger
If you're big, things look smaller.
Did this really need to be proven?
[QUOTE=pogothemunty;30052928]If you're small, things look bigger
If you're big, things look smaller.
Did this really need to be proven?[/QUOTE]
Your avatar is amazingly fitting. I read your post three times, each hearing the Heavy saying it.
It was very good.
Anyway, I don't think it was so much that, just showing a way to demonstrate it experimentally.
i want to try this
it seems awesome
I enjoyed hearing about the body-swapping techniques they use, but this seems awfully trivial. I wonder what potential this has in other fields, like medicine or "VR" games
Well done guys, you're more or less responsible for the robot apocalypse that'll come from Japan when they work out how to operate giant robots cybernetically, ostensibly to dear with nuclear disasters. Thanks again.
[QUOTE=Bat-shit;30052695]Apparently scientists are starting to dig more deeper to the brain.. or human mind.
That's the key organ for us, so it's definitely worth it.[/QUOTE]
You can say they're thinking [I]big[/I].
[QUOTE=Zeddy;30052990]Your avatar is amazingly fitting. I read your post three times, each hearing the Heavy saying it.
It was very good.
Anyway, I don't think it was so much that, just showing a way to demonstrate it experimentally.[/QUOTE]
hahaha holy shit me too.
I -guess- it must feel pretty awkward tho, you know, standing around 13 feet tall mannequins.
So if we have sex with small girls, they will think our dicks are huge!
Finally I can live out my sex fantasy.
I've had odd feelings where I feel smaller or larger than I really am. Quite annoying, but that was when I was younger.
[QUOTE=Protocol7;30057537]I've had odd feelings where I feel smaller or larger than I really am. Quite annoying, but that was when I was younger.[/QUOTE]
[url]http://en.wikipedia.org/wiki/Alice_in_Wonderland_syndrome[/url]
[QUOTE=Protocol7;30057537]I've had odd feelings where I feel smaller or larger than I really am. Quite annoying, but that was when I was younger.[/QUOTE]
happens to me whenever I'm tired.
Videogames work according to the same 'bodyswap' principle. In an immersive game, you become the main character. Even if it's something weird like a ball or a spaceship. Your body is the spaceship.
I remember when I first played super mario bros at a friends place. When I walked home that evening, my entire path was a 2D level of jumps and blocks.
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