00:00Look at this image. There are 12 black dots.
00:03Yes, they are all there, but your brain keeps deleting them from your peripheral vision when you move from one to the other.
00:10This, combined with the blind spot, which is relatively close to the center of your field of vision, slightly offset,
00:18at the place where the optic nerve enters your eye, makes the dots disappear.
00:23If you look at this illusion with one eye, you will see even fewer dots.
00:30This black hole seems to extend towards you, doesn't it?
00:33In reality, this image does not move at all.
00:37It is just your brain that reacts according to what it thinks is happening on the image and that tries to predict what you will see.
00:44Most of those who look at this illusion see the shape grow.
00:48And you, comment below.
00:52The illusion of the following optic, a hypnotic circle, is in fact a geometric loop.
00:58The white circles seem to form a circular shape that rolls inside the circumference of the large red circle.
01:04But as it is an optical illusion, you have probably already understood that this is not really the case.
01:10The white circles all move in a straight line.
01:13But as they are synchronized, their movement creates the illusion that they are moving in a circle.
01:20According to all appearances, we have here a double optical illusion with two hidden puzzles.
01:26Depending on where you look, the dots can either seem to change color or disappear completely.
01:33All you have to do is follow the light gray dot or fix the cross in the center for half a minute.
01:39And you will experience the illusions of this pattern.
01:49The illusion of the following optical illusion
02:13This optical illusion on the theme of numbers completely disconcerted the Internet users.
02:17How many numbers did he see?
02:19Indeed, at first glance, there seems to be only three numbers.
02:23But the more you fix the image intensely, and the closer you get to the screen, the more the numbers begin to appear.
02:30In total, there are seven numbers in this image.
02:33Tell us in the comments what numbers you see.
02:39The optical illusion of the spinning horse makes everyone lose their mind.
02:43The question is the following, in which direction does the horse turn?
02:47Even if many Internet users have their own theories, no one has the slightest idea of the correct answer yet.
02:57The following is one of the most interesting optical illusions in the world.
03:01You probably know Van Gogh's Starry Night.
03:05Well, with a little trick, you can bring life to the painting.
03:13The optical illusion of the spinning horse
03:27First, fix the spinning image above for a moment.
03:31Now, direct your eyes to the painting below.
03:34And here it is, the famous painting comes to life in a whirlwind of spirals.
03:38It's a great example of how our brain can distort an image
03:42depending on how our eyes adapt to what they see.
03:46Look at this moving circle for a moment.
03:49It seems to change color by moving from left to right on a gradient background.
03:54Well, in reality, it was nothing.
03:56The circle always has the same color.
03:58All that changes is the color of the background.
04:01The illusion works because your brain perceives colors differently depending on the context.
04:06So here is a beautiful optical illusion with its scientific explanation.
04:13Here is another example of an optical illusion that we do not get tired of.
04:17Objects seem to move when they are actually completely still.
04:22Like in this spinning vortex illusion.
04:26It is also called a physiological optical illusion
04:29because it is caused by the overstimulation of your brain.
04:33It is when your eyes see too many colors, movements, lights or dimensions.
04:39All this excess information prevents your brain from processing the image correctly.
04:45This image, with its purple and yellow vortex pattern, is a bit hypnotic.
04:50But I promise you that this is neither a gif nor a video.
04:54The image is perfectly still.
04:56The combination of different patterns, different levels and different colors
05:01makes your mind believe that the image moves when your eyes go through the whole.
05:06But if you focus on the center of the image, all movement stops.
05:12This optical illusion in motion has a similar effect.
05:15Its pattern uses the phenomenon of abnormal movement.
05:19It is when an element of a figure seems to move in a different direction from the rest.
05:24This gives you the impression that the image is in motion,
05:27when in reality everything is absolutely still.
05:30Your brain deceives you by making you believe that the image is in motion
05:34because of the way your retina is affected in a particular place.
05:41What would you say to play hide and seek?
05:43Look at this striped image.
05:45It's creepy.
05:46It comes to life when you shake your head vigorously from one side to the other.
05:50Do I have to remind you to do it carefully?
05:53When you start, an image will appear among the lines.
05:56So, what kind of creature did you spot?
05:59Tell us everything in the comments.
06:04This optical illusion in motion is not a gif either.
06:07It is a fixed image, even if you feel like the wheels are turning.
06:12This illusion works thanks to the way your eyes process the images.
06:16They scan it repeatedly, while making an automatic focus and adjustments.
06:21However, there is a way to stop the movement.
06:24Just try to focus on a single wheel.
06:28Look at this illusion with a twisted rope.
06:31Do you see a spiral or a series of rings?
06:34This optical illusion was first described in 1908.
06:39It is called a false spiral,
06:41because, despite what it seems,
06:43it is actually a set of striped concentric rings.
06:49Our next illusion has a pretty cool name.
06:52The Ebbinghaus illusion.
06:54Without giving you a lot of time to think, answer.
06:57Which red dot is bigger, the one on the left or the one on the right?
07:00I bet you think the right circle is bigger.
07:03You see, this illusion is based on the relative size perception.
07:07Your brain makes a relative size comparison based on the points that surround the circles.
07:12But in reality, the red circles in the center are the same size.
07:18This is called the coffee wall illusion.
07:21What do you notice about these rows of dark and light squares?
07:25Most likely, they seem to be inclined or even curved.
07:29But this is just a geometric illusion.
07:31The lines that divide the rows are all parallel and straight.
07:38What about the relative lengths of these two red lines?
07:41First, the tips and arrowheads are likely to affect your perception of the length of the lines.
07:47But that's not all.
07:48In this image, the lines are elongated and they create a three-dimensional wall pattern.
07:54In this structure, the red line in the far corner seems to be as high as the wall itself,
08:00while the red line that is close seems to occupy only part of it.
08:04But if you manage to see beyond these illusions,
08:07you will realize that the two red lines are actually the same length.
08:13Fix the pattern circle in the center of this image and slightly move your head.
08:17You will probably feel a strange sensation.
08:20The central circle moves independently of the rest of the image.
08:24Your brain cannot help but fall into the illusion of movement due to the monochrome ring that surrounds the circle.
08:31These two eagles seem to be of different colors, don't they?
08:35Well, not really.
08:36What you are seeing is the Bézold effect.
08:39A color will appear different depending on its relationship with the adjacent colors.
08:44In other words, these bird silhouettes are of the same shade of red.
08:48But if we add yellow or blue bars, they seem to take different shades.
08:56What you are seeing now is the illusion of the context of colors.
08:59So, tell me, what colors are the eyes of the lynx?
09:03The one on the left is a duck blue, and the one on the right seems to be gray.
09:07This proves to us that the color surrounding an object affects the way our brain perceives the color of the object.
09:13In fact, the two eyes of the cat are exactly of the same gray color.
09:17But the red color around the left eye gives this eye a duck blue shade.
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