Never trusting my eyes again

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Never trusting my eyes again

#1  Postby Macdoc » Jul 21, 2018 8:30 am

:what: :whine:

Every Circle In This Image Is The Same Color And It's Breaking Our Brains
Digg Jul 20 2018, 5:13 PM


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Re: Never trusting my eyes again

#2  Postby Animavore » Jul 21, 2018 8:50 am

Your eyes are ok. It's your brain that's the problem.
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Re: Never trusting my eyes again

#3  Postby Hermit » Jul 21, 2018 8:53 am

One of my favourite optical trick is the ballerina. Her rotational direction keeps flipping every ten seconds or so, but not for everybody. It's still a trick, though, for there is no objective pointer as to whether she rotates clockwise or counter-clockwise. There is very little we see "objectively". Somewhere along the line the brain interprets the visual input and and often enough it's reduced to guessing - wrongly.

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Re: Never trusting my eyes again

#4  Postby minininja » Jul 21, 2018 9:01 am

Macdoc wrote::what: :whine:

Every Circle In This Image Is The Same Color And It's Breaking Our Brains
Digg Jul 20 2018, 5:13 PM



Well they're not really. The background of the circle shape is the same colour, and you can see that clearly enough if you are close, but the average colour in the area of each circle is different depending on which stripes go over it. This is no different to seeing colours made up of RGB pixels.

I think this one is much more impressive - All of the lines right across the image have the same curvature:

Image

http://blogs.discovermagazine.com/neuro ... -illusion/
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Re: Never trusting my eyes again

#5  Postby Animavore » Jul 21, 2018 9:03 am

Hermit wrote:One of my favourite optical trick is the ballerina. Her rotational direction keeps flipping every ten seconds or so, but not for everybody.


She never flips for me. She's always anti-clockwise. I can't even see how she could be the other way. I suspect it's because my imagination loads her with too many assumptions in my 3-D visualisation of her, that's to say I see her as a solid not as the flat that she is.
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Re: Never trusting my eyes again

#6  Postby Macdoc » Jul 21, 2018 9:09 am

THere is likely one that you can manually change direction.
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Re: Never trusting my eyes again

#7  Postby minininja » Jul 21, 2018 9:11 am

Animavore wrote:
Hermit wrote:One of my favourite optical trick is the ballerina. Her rotational direction keeps flipping every ten seconds or so, but not for everybody.


She never flips for me. She's always anti-clockwise. I can't even see how she could be the other way. I suspect it's because my imagination loads her with too many assumptions in my 3-D visualisation of her, that's to say I see her as a solid not as the flat that she is.

It doesn't flip for me if I'm looking directly at it, but if I focus for a second on a point about the same height as the image below, it flips every time.
[Disclaimer - if this is comes across like I think I know what I'm talking about, I want to make it clear that I don't. I'm just trying to get my thoughts down]
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Re: Never trusting my eyes again

#8  Postby Fallible » Jul 21, 2018 9:13 am

It flips for me when I look away and look back. Not really impressed by the first image. All the parts of the dots you can see are pretty clearly the same colour.
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Re: Never trusting my eyes again

#9  Postby Macdoc » Jul 21, 2018 9:25 am

Your not supposed to look behind the curtain...

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Re: Never trusting my eyes again

#10  Postby minininja » Jul 21, 2018 9:45 am

I also like ones that look like they're moving when they're not.

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Re: Never trusting my eyes again

#11  Postby Macdoc » Jul 21, 2018 10:01 am

I get a slow rotation clockwise

This just moves peripheral ...

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Can you imagine that as wall paper :what:
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Re: Never trusting my eyes again

#12  Postby Hermit » Jul 21, 2018 10:11 am

Another one I like:

Image

Look at the cross in the centre and marvel how the rotating green dot makes the lilac ones disappear for a short time.

Explanation here.
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Re: Never trusting my eyes again

#13  Postby DavidMcC » Jul 21, 2018 1:20 pm

Macdoc, I trust that you realise that all the illusions you have posted are dependent on the computer monitor, with its rapidly changing display, designed to fool your (slow) eyes into thinking that you are seeing moving images, for example. Thus, you are talking about effects that our eyes did not evolve to "see through", so to speak.
EDIT: So you are right not to trust your eyes, WHEN WATCHING TV SCREENS OR COMPUTER MONITORS.
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Re: Never trusting my eyes again

#14  Postby scott1328 » Jul 21, 2018 2:12 pm

Liar
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Re: Never trusting my eyes again

#15  Postby DavidMcC » Jul 21, 2018 2:21 pm

scott1328 wrote:Liar

Please explain in what sense I lied Scott. If you cannot, I will naturally assume that you don't know what you are talking about.
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Re: Never trusting my eyes again

#16  Postby scott1328 » Jul 21, 2018 3:21 pm

I have seen several of the images in print. In fact I am holding one right now
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Re: Never trusting my eyes again

#17  Postby Animavore » Jul 21, 2018 3:22 pm

Me too. Including the one Maddox asked if you could imagine as wallpaper. One of my friends used to have it as a poster.

Edit: Macdoc. Stupid autocorrect.
Last edited by Animavore on Jul 21, 2018 3:29 pm, edited 1 time in total.
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Re: Never trusting my eyes again

#18  Postby DavidMcC » Jul 21, 2018 3:25 pm

scott1328 wrote:I have seen several of the images in print. In fact I am holding one right now

Great! So in what sense did I lie? Or are you simply ignoring my posts? (Quite likely.)
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Re: Never trusting my eyes again

#19  Postby scott1328 » Jul 21, 2018 3:28 pm

DavidMcC wrote:Macdoc, I trust that you realise that all the illusions you have posted are dependent on the computer monitor, with its rapidly changing display, designed to fool your (slow) eyes into thinking that you are seeing moving images, for example. Thus, you are talking about effects that our eyes did not evolve to "see through", so to speak.
EDIT: So you are right not to trust your eyes, WHEN WATCHING TV SCREENS OR COMPUTER MONITORS.

Bullshit lies.
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Re: Never trusting my eyes again

#20  Postby DavidMcC » Jul 21, 2018 3:29 pm

Well, the one featured in Macdoc's post #11 is a static one, and would work, as you say, without a TV screen, however, others would not (eg the one in post #12).
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