Look carefully at this image – specifically the white dot on the woman’s nose.
After 15 seconds, glance quickly at the white space immediately next to her.
Do you see her?[N.B – like ‘the dress’ – not every one can…]
Can you see her?
The transformation of a somewhat sinister looking negative image into a beautiful glossy-haired brunette woman is the latest brain-shredding optical illusion to take the Internet by storm.
It’s not a new one but for whatever reason it’s resurfaced to enjoy yet another day in the sun [geddit?].
If you did catch a glimpse of the pretty woman, what you are actually seeing is what's known as a negative afterimage.
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Psychology expert Kendra Cherry uses a similar exercise with a shamrock image to explain that in a positive afterimage, the colours of the original image are maintained [essentially that the afterimage looks the same as the original image]
She told About Psychology: “In a negative afterimage, the colors you see are inverted from the original image. For example, if you stare for a long time at a red image, you will see a green afterimage.
“The appearance of negative afterimages can be explained by the opponent process theory of color vision.
“You can see an example of how the opponent-process works by staring at the red shamrock… for about one minute before shifting your gaze immediately to a white sheet of paper or a blank screen.
