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Why can't we walk straight when blindfolded?

Why can't we walk straight when blindfolded?

No doubt about it, going straight is difficult if not impossible. NPR's Robert Krulwich reports on a human trait that still stumps scientists.

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WalterEgo WalterEgo (2860 days ago)
Isn't it quite simple? Everyone will have a bias to one side or the other simply because no one is perfectly symmetrical. Therefore as soon as that bias is established, you're going to go round in circles.
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Isn't it quite simple? Everyone will have a bias to one side or the other simply because no one is perfectly symmetrical. Therefore as soon as that bias is established, you're going to go round in circles.
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Guest: Your name (2860 days ago)
Seems there's not a lot to explain here.
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Seems there's not a lot to explain here.
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Guest: Your name (2860 days ago)
yeah I definitely remeber that being the same reason why people who get lost in the wilderness tend to walk in giant circles.
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yeah I definitely remeber that being the same reason why people who get lost in the wilderness tend to walk in giant circles.
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Guest: I Dont Know EVERything 123 (2156 days ago)
Actually i did this experiment and its not like they went the same direction every time, they actually made a circle left one time and then right the next time so its more of the fact that you have no reference , your not going to move you muscles straight when extending your leg when you dont know where straight is
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Actually i did this experiment and its not like they went the same direction every time, they actually made a circle left one time and then right the next time so its more of the fact that you have no reference , your not going to move you muscles straight when extending your leg when you dont know where straight is
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Guest: Top show lads :) (2861 days ago)
I loved the graphics of it, a very well done video. Oh, and I love his beard/moustache around 1 minute in... :D
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I loved the graphics of it, a very well done video. Oh, and I love his beard/moustache around 1 minute in... :D
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Guest: curber (2814 days ago)
scientists have tested the theory of one leg being stronger than the other and they found that it is not that
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scientists have tested the theory of one leg being stronger than the other and they found that it is not that
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Guest: (2860 days ago)
I think it is because of god and how he has givin us eyes to see and when you dont youse them as a bindfool you are deniying his design and are a sily fool who is trynig to beet gravity.
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I think it is because of god and how he has givin us eyes to see and when you dont youse them as a bindfool you are deniying his design and are a sily fool who is trynig to beet gravity.
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Guest: Guest (2527 days ago)
What if a blind person try to walk in a straight line; would he/she do better? It is a matter of perception. When you have a fixed point that you can see, you "draw" the straight path in your brain, follow it, but every now and then, you check your route with the fixed point and make small fixes to straighten up your walk path. It is not like we can walk straight and sudenly when we are blindfolded, we lose our ability to walk straight. We DO NOT WALK straight by the laws of physics and mechanics.
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What if a blind person try to walk in a straight line; would he/she do better? It is a matter of perception. When you have a fixed point that you can see, you "draw" the straight path in your brain, follow it, but every now and then, you check your route with the fixed point and make small fixes to straighten up your walk path. It is not like we can walk straight and sudenly when we are blindfolded, we lose our ability to walk straight. We DO NOT WALK straight by the laws of physics and mechanics.
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Guest: Anonymouse (2861 days ago)
I wonder if they've tried that on someone who's never been able to see. So never learnt to walk visually between two fixed points?
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I wonder if they've tried that on someone who's never been able to see. So never learnt to walk visually between two fixed points?
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Guest: Doe (2860 days ago)
Well the link doesn't work, but I don't need to see it. You cannot walk straight while blindfolded because one leg is always stronger than the other, ergo taking longer strides. this means that you will always veer off in one direction or the other. Claiming that this is something that baffles scientists is pretty dumb; it would barely baffle schoolchildren.
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Well the link doesn't work, but I don't need to see it. You cannot walk straight while blindfolded because one leg is always stronger than the other, ergo taking longer strides. this means that you will always veer off in one direction or the other. Claiming that this is something that baffles scientists is pretty dumb; it would barely baffle schoolchildren.
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Guest: curber (2814 days ago)
scientists have tested the theory of one leg being stronger than the other and they found that it is not the answer.
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scientists have tested the theory of one leg being stronger than the other and they found that it is not the answer.
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Guest: curber (2814 days ago)
scientists have tested the theory of one leg being stronger than the other and they found that it is not the answer. I am doing a science fair project on it and I also tested that i know that is not the answer
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scientists have tested the theory of one leg being stronger than the other and they found that it is not the answer. I am doing a science fair project on it and I also tested that i know that is not the answer
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Guest: taylortaylornsn (1707 days ago)
Latest comment: its perfect for my science project mine is if blindfolded do we walk in a circle
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Latest comment: its perfect for my science project mine is if blindfolded do we walk in a circle
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slicksps slicksps (2860 days ago)
Here's my theory: In every experiment, there is one known fixed point, the starting spot. When each person started, they knew exactly where they were and felt comfortable (ok perhaps slightly nervous by the fat guy with the blindfold) It makes evolutionary sense to keep this starting point in mind when venturing out to explore, it makes good sense to instinctively walk in a circle to explore ones area fully without travelling too far from the ... herd(?) When blindfolded, the last known 'safe' point is the anchor keeping the walker who feels unsafe everywhere else, somehow close.
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Here's my theory: In every experiment, there is one known fixed point, the starting spot. When each person started, they knew exactly where they were and felt comfortable (ok perhaps slightly nervous by the fat guy with the blindfold) It makes evolutionary sense to keep this starting point in mind when venturing out to explore, it makes good sense to instinctively walk in a circle to explore ones area fully without travelling too far from the ... herd(?) When blindfolded, the last known 'safe' point is the anchor keeping the walker who feels unsafe everywhere else, somehow close.
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