The dinosaurs’ eyes follow you wherever you go…
BrusspupIt’s called the “hollow face illusion,” and it works because your brain assumes that anything resembling a face is convex, rather than concave. Even though the eye to your right is technically farther away from you, your brain believes that because the image is a face, it must actually be closer.
A similar illusion, called the “hollow mask” is sometimes used to detect Schizophrenia.
A healthy brain will see a concave face, like the back of a hollow mask, as a normal convex face. The brains of Schizophrenia patients aren’t fooled by this illusion, and they see a hollow mask for what it is – a hollow mask.
This amazing park in Paris was designed to look like a globe from certain angles.
reddit.comFrench artist François Abélanet designed the 3D optical illusion to highlight environmental issues and invite people to question the role that nature plays in our lives.
Which way is this train moving? Look long enough or blink and your brain will change the direction.
moillusions.comThis is part of the ‘wagon-wheel effect. Closing your eyes for a second then opening them or looking in the direction you want the train to travel, should allow you to switch directions on command. The same goes for this wheel…
Stare at this swirling gif for 30 seconds, and then look at the underwater city and waterfall below.
kaschant.files.wordpress.comAfter a while, you become fatigued, and the still images come to life as your eyes try to regain composure.
The magnificent Amelymeloptical illusion leaves objects floating in mid air.
huffingtonpost.comThe method was developed by French juggler Lindzee Poi – to fool your eyes and blow your mind. Of course, this magician has refused to reveal his secrets.
You probably won’t believe it, but the squares marked ‘A’ and ‘B’ are actually the exact same shade of grey.
upload.wikimedia.orgYour eyes and brain are constantly trying to figure out the colour of the objects around you, and they automatically adjust for shadows. Since B is in the shade of the green cylinder, but is still the same colour as A, the brain believes that it must be a far lighter shade of grey and adjusts what you see.
These yellow and blue blocks appear to move one after the other, right?
michaelbach.deWhen the black bars are removed, you’ll see that they’re always parallel and that the black bars are distorting your brain’s deception of movement.
Stare at the center of the colored version, and wait for it to change to black and white.
fc04.deviantart.netInstead of turning black and white, your brain fills in the color it thinks you should be seeing, based on the orange and blue photo. Blink and you’ll be back to black and white. Try it with this image too…
By layering two images on top of each other, talented photographers can create these entrancing profile shots.
facebook.comBy playing along the natural contours of the human face, the Two Face Illusion allows us to see a face from either the front or the side.
See this spiral? There’s actually no spiral, it’s just circles, but your brain thinks it is.
Fix your eyes on the black dot and the grey stripe will turn blue or green.
moillusions.comAs you focus on the dot, the grey begins to merge with the orange background. The moment you look away from the dot, the bar will return to grey.
All the dots on this image are white, but some appear black.
No matter how hard you try, you won’t be able to look directly at the black dots that appear in the circles. Why this illusion works is still a mystery.
By manipulating the human brain and eyes, Brusspup is able to create amazing animations with nothing but a black card.
They even manage to fool cats.
While it looks like the top square is much darker than the bottom, they’re exactly the same colour except at the edges. Hold your finger completely over the boundary between the two shapes (where the red arrow is pointing) and the colours will be corrected.
americanscientist.orgThe Cornsweet illusion exploits a phenomenon in the brain known as lateral inhibition which creates more contrast between the two objects because of the differently colored edges.
These three cars may look like they’re different sizes, but in reality, they’re all exactly the same.
neatorama.comThe Ponzo illusion happens because our brains judge an object’s size based on its background. If something is the same size as another object, but looks further away, we’ll think that it’s bigger.
Stare at the green dot too long and the yellow spots will disappear. Blink and they’ll return.
michaelbach.deThis illusion is called the Troxler effect and however hard it may be to believe – the yellow dots are always present. Unvarying images very quick to disappear from our awareness, especially when they’re surrounded by constantly changing imagery.
Akiyoshi Kitaoka uses geometrical shapes, brightness and colour to create motion illusions. These images are not animated, but the human brain makes them appear so.
Using similar techniques, Randolph is able to create similar, more psychedelic illusions.
Using clever design, artists like Ibride are able to create pieces of art that look different or even impossible depending on the angle.
Cover the sides of the hallway with your hands and the animation speeds down, cover the middle and the animation speeds up.
These horizontal lines appear to be sloping, but look long enough, and you’ll see that they’re parallel to one another.
dailymail.co.ukInitially, it’s difficult to see the grey line between white and black tiles, meaning that the brain fills in the grey as either black or white, creating the illusion that the lines are sloped.
The photograph of the Leaning Tower of Pisa on the right appears to lean more to the right. In reality, they’re identical photographs and the towers are parallel.
dailymail.co.ukIf two towers are parallel, then from a ground perspective they’d eventually converge into one another. So, when your eyes and brain see two towers that are parallel, they assume that they must be moving apart as they rise into the air and create the resulting illusion.