Very cool. It took awhile to focus only on the + in the middle long enough for the pink to disappear, but it did ! What is the explanation Dr Science ?
Very cool. It took awhile to focus only on the + in the middle long enough for the pink to disappear, but it did ! What is the explanation Dr Science ?
I'm sure there's probably a very complicated anatomical explanation but I think it has to do with the color of your eyes!
Very cool. It took awhile to focus only on the + in the middle long enough for the pink to disappear, but it did ! What is the explanation Dr Science ?
Quote:
Originally Posted by leaguegolf
I'm sure there's probably a very complicated anatomical explanation but I think it has to do with the color of your eyes!
I learned about this in Psychology class yesterday and today, actually. The Hering-Hurvich theory of colour perception (the Opponent-Process Theory) is based on the frequent pairing of red and green, and blue and yellow as complementary primaries. So according to the Ganzfeld phenomenon, in contourless colour field (the grey backdrop), colour disappears after time (pink dots), but returns when contour crosses the field of vision (when your focus deviates from the black + to the circle of pink dots). So that explains why the pink dots disappear. Now, the pink dots that keep disappearing appear to be a green dot rotating around the circle because pink and that particular shade of green are complementary to each other. This illusion works only if your focus is on the black + because that means your cones (which are the parts of your retina that are more focused since they are all lined up to your pupil) are not exposed to the pink dots. Instead, the rods (which are extremely unfocused when compared to the cones - they are located on the wall of the retina NOT adjacent to the pupil) are what pick up the sight of the pink dots. It's difficult to explain, but your rods are more easily fooled into mistaking a disappearing pink dot for an appearing green dot.
Yeah I've got a midterm coming up so I should know this stuff. Who ever said you never use the stuff you learn in school?
I learned about this in Psychology class yesterday and today, actually. The Hering-Hurvich theory of colour perception (the Opponent-Process Theory) is based on the frequent pairing of red and green, and blue and yellow as complementary primaries. So according to the Ganzfeld phenomenon, in contourless colour field (the grey backdrop), colour disappears after time (pink dots), but returns when contour crosses the field of vision (when your focus deviates from the black + to the circle of pink dots). So that explains why the pink dots disappear. Now, the pink dots that keep disappearing appear to be a green dot rotating around the circle because pink and that particular shade of green are complementary to each other. This illusion works only if your focus is on the black + because that means your cones (which are the parts of your retina that are more focused since they are all lined up to your pupil) are not exposed to the pink dots. Instead, the rods (which are extremely unfocused when compared to the cones - they are located on the wall of the retina NOT adjacent to the pupil) are what pick up the sight of the pink dots. It's difficult to explain, but your rods are more easily fooled into mistaking a disappearing pink dot for an appearing green dot.
I liked the "color of your eyes" explanation better!
I learned about this in Psychology class yesterday and today, actually. The Hering-Hurvich theory of colour perception (the Opponent-Process Theory) is based on the frequent pairing of red and green, and blue and yellow as complementary primaries. So according to the Ganzfeld phenomenon, in contourless colour field (the grey backdrop), colour disappears after time (pink dots), but returns when contour crosses the field of vision (when your focus deviates from the black + to the circle of pink dots). So that explains why the pink dots disappear. Now, the pink dots that keep disappearing appear to be a green dot rotating around the circle because pink and that particular shade of green are complementary to each other. This illusion works only if your focus is on the black + because that means your cones (which are the parts of your retina that are more focused since they are all lined up to your pupil) are not exposed to the pink dots. Instead, the rods (which are extremely unfocused when compared to the cones - they are located on the wall of the retina NOT adjacent to the pupil) are what pick up the sight of the pink dots. It's difficult to explain, but your rods are more easily fooled into mistaking a disappearing pink dot for an appearing green dot.
Yeah I've got a midterm coming up so I should know this stuff. Who ever said you never use the stuff you learn in school?
Ok, again in english please. I droned off just like I did the first time I heard this in class....
But WOW....that was spooky.
Ok, again in english please. I droned off just like I did the first time I heard this in class....
But WOW....that was spooky.
Interestingly enough, I fell asleep during this lecture too.
Do you really want me to say it again? Cause if so, fine. If you've got brown eyes, you see a green dot circle around. If you've got blue eyes, you see a green dot circle around. If you've got green eyes, you're in for a real treat! You'll see a green dot circle around! And in all these cases, the pink dots will disappear before your very eyes! All according to League's Law!
My dad and my brother both got it. For some reason the pink dots never disappeared for my mom though. But at least she saw the green one circling around.
October 13th, 2005, 01:54 PM
Who ever said you never use the stuff you learn in school? 
I liked the "color of your eyes" explanation better! 
I am ready to obey your wishes Master!
All according to League's Law! 
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