A bizarre optical illusion involving a demonic lady with a white and blue face and a spot on her nose looks set to break the internet in the same way “that dress” nearly did.
Here’s how. Stare at the white dot at the centre of the nose of the demonic white and blue face above for 15 seconds and then quickly glance at the white blank space to the right of the photo.
Crazy isn’t it? The somewhat monstrous negative of the lady’s white and blue face is transformed as if by magic into a beautiful full-colour face of a young brunette woman.
The beast becomes a beauty and the demon becomes an angel in a stunning optical illusion which is known as a negative afterimage.
Here’s the science part. Daily Mail Australia reports that a negative afterimage results when the ganglion cells in our eyes send messages to our old grey matter by coding, or identifying shades in pairs of primary colours.
Still confused? Allow Dr Juno Kim from the University of NSW School of Optometry and Vision Science to explain.
“The code for all the hues we can experience in the light spectrum, this information is relayed from the back of the eye to the brain via three opponent neuron channels.
“Aside from the greyscale black and white channel, we also have a red and green channel and a third blue and yellow channel so that ‘we can code for any hue that’s in the environment. When you look at something that, for example, is yellow for a long period of time, you stimulate the cells that are positively sensitive to yellow – so in the yellow and blue channel.”
“The cells’ activity increases and after a bit of time the activity fatigues and declines. When you then direct your gaze at a uniform background – let’s say a grey wall – then what happens is that the cell doesn’t return to its resting activity, it goes much lower than that. It’s that decline – the weakening of the yellow code – that codes for the opposite colour to become stronger, so you’ll see blue.”
If you still really don’t understand what’s going on. Not to worry just sit back and enjoy the optical illusion for what it is, a raw slice of primitive magic.
(Images Via Daily Mail)