I still don't get it. Why are the other squares dark when they are next to the light one where the light one is moved to? Unless they really are dark but.... oh screw it. Cool illusion.

http://www.youtube.com/watch?v=z9Sen1HTu5o&feature=player_embedded#t=76s

__________________
Sent from an agnostic abacus

2014 C250 21,XXX my new DD ** 2013 GLK 350 18,000 Wife's new DD**

- With out god, life is everything.
- God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson
- You can pray for me, I'll think for you.
- When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.

I'm wondering if your eye would register the same thing or is it just a camera trick. I also would have liked to see her move the card around some of the other pieces in different light to show the effect.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

My head hurts.

__________________

1980 300TD-China Blue/Blue MBTex-2nd Owner, 107K (Alt Blau) OBK #15
'06 Chevy Tahoe Z71 (for the wife & 4 kids, current mule) '03 Honda Odyssey (son #1's ride, reluctantly) '99 GMC Suburban (255K+ miles, semi-retired mule) 21' SeaRay Seville (summer escape pod)

It's neat someone actually built this model:

http://web.mit.edu/persci/people/adelson/checkershadow_illusion.html

Nice video!

-J

__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

heres one in this video that effects your eyes and your brain
http://www.youtube.com/watch?v=WvVfcyVCdNA

We seek patterns, and sometimes our mind supplies them even when they do not actually exist.

__________________
1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags

Koffka ring, which is a uniform gray ring on light and dark backgrounds. Yes, the ring is the same gray color in a, b and c.

Enjoy!

Attached Thumbnails

 

Interesting. If I stare at one spot on the picture, I can force the ring to look the same color on both sides but if I move my eye just a little, it reverts back to the appearance of two shades.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

This link works better -

non-embedded

These are examples of the limitation of subjective perception.

There are numerous examples.

We do not accurately perceive.

We must be taught our limitations and how to work within our limits.

.

OK. So I see this over and over and I still do not get it. There is a checker board pattern on the display right? How is it she moves a square that looks lighter from the shade area to a non shaded area beside two dark squares and they all end up being they same color? Yet the other light squares are not the same color as the light square she moved in the first place but they actually all look like the same color?

Are their actually 3 colors involved since there is a checker board pattern?

__________________
Sent from an agnostic abacus

2014 C250 21,XXX my new DD ** 2013 GLK 350 18,000 Wife's new DD**

- With out god, life is everything.
- God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson
- You can pray for me, I'll think for you.
- When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.

I want my minute back.

It shouldn't come as a surprise that color in "shade" will appear different than the same color unshaded, etc. Our cars paint does the same thing.

__________________
1982 240 D, 308,000 - 321,127 miles (sold)
1982 300 TD,166,500 - 226,000 miles
1998 E 320, 120,000 - 144,000 miles
2005 C 230 K, 26,000 - 77,000 miles (sold)

Check this: http://web.mit.edu/persci/people/adelson/checkershadow_description.html

-J

__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

That makes it clear as mud. I understand the mud a little better now. I need to see it in real life to understand how it works. I'm a touchy feelly kind of guy.

__________________
Sent from an agnostic abacus

2014 C250 21,XXX my new DD ** 2013 GLK 350 18,000 Wife's new DD**

- With out god, life is everything.
- God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson
- You can pray for me, I'll think for you.
- When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.

.

We often perceive by comparison.

In one setting an object differs from its immediate surroundings in such a way that the brain tell us it has one quality.

If the same object is in a different environment, that is that it differs from its surroundings differently than in the first instance then the brain tells us it has a different quality.

What the example is showing is that human perceptions are NOT the same as analytical equipment.

It's designed to tell us that we shouldn't be quite so ready to be certain about our internal constructs until we have tested them.

Hope my comments help.

.