In Science Daily Online we have talked to you about 25% of tetrachromate people and we have encouraged you to check if you are one of them with this test.On this occasion we want to show you a new viral phenomenon related to vision, similar to that of the blue dress, veige, white...That is causing sensation!
15 seconds looking at the point in her nose and...Wow!
This time the phenomenon is more "negative" than colorful and looks pretty sinister, but it will surprise you.
The test consists of look for 15 seconds the white dot on this girl's nose.After these 15 seconds, look at the "very pale green" part on the right.What do you see?
You can try it a couple of times, if you don't see anything good at first.
What and should I see?
If after staring at the white point during those 15 seconds and looking at the "greenish white" part you have seen the face of a beautiful brunette woman , bingo! You've got what you should get.
How can this happen? First for the residual image that usually remains in the eye after observing something for a long time, then and more important, since it is thanks to this that we see normal colors in the girl, for the «negative residual image» effect.This occurs thanks to the retinal ganglion cells , which send messages to the brain identifying colors by pairs of primary colors.
How does the "Negative residual image" effect? According to the Australian Daily Mail, Dr.Jun Kim, from the School of Optometry and Vision Sciences belonging to the University of NSW, when ganglion cells receive this information, transmit it for 3 neural channels .One for grays, whites and blacks, one for red and green and one for blue and yellow.When these messages are transmitted, cell activity increases a lot, but after a moment, they "get tired".
It's this fatigue that causes that when decoding the colors and transmitting them to the brain after looking at a gray wall or surface of uniform color, the ganglion cells send the opposite color through each channel of pairs of colors , instead of the correct one.that, for example, if you are looking at a blue color for a while (as is the case) and then looking at a "gray" wall, you will see it yellow, due to the fatigue of these cells, giving To the girl a much more natural skin tone that we recognize as normal and not sinister.
If you liked this article, you may want to discover what the stereograms are and how you can see their effect.
Images: Vectors designed by
Comments
Post a Comment