Freethought & Rationalism Archive

demoninho · 09-26-2003, 02:04 PM

For an even bigger headache

Mods: feel free to move

Edit: does anyone have an explantion?

davidm · 09-26-2003, 02:28 PM

If you stare fixedly at any point, the illusory rotations continue in your peripheral vision for a few seconds and then come to a stop. Move your eyes even slightly, and they start up again.

Why is this happening?

Arken · 09-26-2003, 02:30 PM

Can't... stop... staring...

Lobstrosity · 09-26-2003, 02:37 PM

Here is a simpler one that I also find interesting.

Only for this one to work you need to stare at the dot in the center and then proceed to move your head towards and away from the screen.

demoninho · 09-26-2003, 02:42 PM

Quote:

Originally posted by Lobstrosity
Here is a simpler one that I also find interesting.

Only for this one to work you need to stare at the dot in the center and then proceed to move your head towards and away from the screen.

Yes, I like the speedboat illusion

trunks2k · 09-26-2003, 03:57 PM

That is SO becoming my desktop image.

Hedwig · 09-26-2003, 05:19 PM

...I live only to do your bidding, master...

GypsyLife · 09-26-2003, 11:03 PM

Ahhhhhh! ...Freaking.... out.....

Gothic_J · 09-27-2003, 03:52 AM

god, that is so kewl!

I want it as background.

John Page · 09-28-2003, 09:40 AM

1. If I concentrate/focus my awareness on the dark circles, the apparent movement slows and stops.

2. I'm no expert but I believe this kind of illusion happens because our brains are anticipating movement, perhaps trying to interpret the concentric circles as a spiral. This would be supported by (my) observation that the two diamondy shapes in the middle do not exhibit apparent movement.

3. I have tried focusing on a single circle by screening out the others using my hands. The single circle doesn't move for me.

Maybe this is Microsoft Autocorrect gone mad and leaped from the 'net into our minds....

Anyone else get the same effects as I do in 1 thru 3 above?

Cheers, John

09-26-2003, 02:04 PM	#1
demoninho Senior Member Join Date: May 2003 Location: The Netherlands Posts: 927	Instant headache!!!!!!!!!!!!!!!!! For an even bigger headache Mods: feel free to move Edit: does anyone have an explantion?

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09-26-2003, 02:28 PM	#2
davidm Banned Join Date: May 2002 Location: New York City Posts: 1,617	If you stare fixedly at any point, the illusory rotations continue in your peripheral vision for a few seconds and then come to a stop. Move your eyes even slightly, and they start up again. Why is this happening?

09-26-2003, 02:30 PM	#3
Arken Veteran Member Join Date: Jun 2003 Location: North Hollywood, CA Posts: 6,303	Can't... stop... staring...

09-26-2003, 02:37 PM	#4
Lobstrosity Senior Member Join Date: Feb 2003 Location: San Diego, California Posts: 719	Here is a simpler one that I also find interesting. Only for this one to work you need to stare at the dot in the center and then proceed to move your head towards and away from the screen.

09-26-2003, 03:57 PM	#6
trunks2k Veteran Member Join Date: Sep 2000 Location: Philadelphia Posts: 6,997	That is SO becoming my desktop image.

09-26-2003, 05:19 PM	#7
Hedwig Veteran Member Join Date: Nov 2001 Posts: 3,921	...I live only to do your bidding, master...

09-26-2003, 11:03 PM	#8
GypsyLife Regular Member Join Date: Apr 2003 Location: South Florida, USA Posts: 170	Ahhhhhh! ...Freaking.... out.....

09-27-2003, 03:52 AM	#9
Gothic_J Veteran Member Join Date: Jun 2003 Location: New England Posts: 1,290	god, that is so kewl! I want it as background.

09-28-2003, 09:40 AM	#10
John Page Veteran Member Join Date: May 2001 Location: US Posts: 5,495	1. If I concentrate/focus my awareness on the dark circles, the apparent movement slows and stops. 2. I'm no expert but I believe this kind of illusion happens because our brains are anticipating movement, perhaps trying to interpret the concentric circles as a spiral. This would be supported by (my) observation that the two diamondy shapes in the middle do not exhibit apparent movement. 3. I have tried focusing on a single circle by screening out the others using my hands. The single circle doesn't move for me. Maybe this is Microsoft Autocorrect gone mad and leaped from the 'net into our minds.... Anyone else get the same effects as I do in 1 thru 3 above? Cheers, John

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