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24 January 2020 10:51

The picture looks different because the effect has darker and lighter shades in the middle.

Kate Garraway has caused her followers to look twice after she shared a baffling optical illusion. The 52-year-old Good Morning Britain presenter shared an image on Instagram that has caused huge debate among her followers, who tried to get their heads around the bizarre illusion. The I'm A Celebrity star posted the image, which contained two blocks that appear to be totally different shades of grey piled on top of one another. There is some debate as to whether the two blocks are a different colour or the same but if you put a finger between the blocks, it becomes clear that they are exactly the same colour, much to the confusion of your eyes. The image is made to look different due to the effect which has darker and lighter shading running through the middle.

It went on to cause a right stir among her 588,000 followers, with more than 20,000 liking the image and hundreds taking to the comments to add their two-penneth. The image is called the Cornsweet illusion and was first used by Tom Cornsweet, who was an experimental psychologist in the 1960s. The image shared by the Smooth Radio host is called the Cornsweet illusion and was first documented by experimental psychologist Tom Cornsweet in the 1960s. In the image it looks like the upper square is darker and the lower one is lighter as that is what our brain thinks is a logical response to the image. The illusion is created by the light falling from the upper left and the two blocks being tilted away from us.

Kate Garraway made her followers look twice after sharing an astonishing optical illusion. The 52-year-old Good Morning Britain presenter has shared an image on Instagram that has sparked heated debate among her followers who have been trying to create the bizarre illusion. The star of I'm A Celebrity released the picture, which contained two blocks that appeared to be completely different shades of gray stacked on top of each other. The picture looks different because the effect has darker and lighter shades in the middle. It continued to cause a stir among its 588,000 followers, with more than 20,000 liking the picture and hundreds adopting the comments to add their two pfennigs. The picture is called Cornsweet Illusion and was first used by Tom Cornsweet, who was an experimental psychologist in the 1960s. The image shared by Smooth Radio's moderator is called Cornsweet Illusion and was first documented by experimental psychologist Tom Cornsweet in the 1960s. In the picture, it looks like the upper square is darker and the lower one is lighter, since our brain sees this as a logical reaction to the picture. When the two opposite shades are combined between the two blocks, our brain interprets the upper block as dark and the lower one as light.