What Sorcery Is This??? | The Curvature Blindness Illusion

Illusions are fun. Check out the last one I posted.

This one will blow your mind. In the image below, all of the lines are identical in shape, yet they appear zig-zagged against the grey backgound.

Read about how the illusion works here.

"In a normal condition, however, we do not perceive an obtuse corner against a low curvature. This is because a low curvature detector, which was also triggered by the input of the low curvature, interferes with the output of the obtuse corner detector. Thus, the percepts of low curvature “win” there. On the other hand, in the curvature blindness illusion, the visual inputs of low curvature do not activate the low curvature detector because of the inverted contrast polarity across local orientation filters. However, the obtuse corner detectors still respond to the low-curvature inputs because the contrast polarity does not matter (second assumption). Then, there is no interference from the obtuse corner detector; thus, even if the input is a wavy line, the percepts of zigzag corner “win” without fighting."

In other words. when the mind is confused it's easier to see corners than curves.

I'll have to take their word for it. I can't unsee the zig-zag. Can any of you?

Kryptonaut