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Sigmund Freud Hollow Mask Optical Illusion Toy

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Here is one of the coolest optical illusion toys money can buy. The Freud Hollow Mask Illusion is a concave mask of a face that appears normal. This illusion is created because our brain uses visual cues to interpret depth. In this case, our brains assume the face is convex because that’s what a face typically looks like.

Sigmund Freud Hollow Mask Optical Illusion 😎 #shorts #magic

The effect is even stronger when I close one of my eyes but that might be different for you. Even when someone knows that the face is hollow, they still can’t help but perceive it as convex.

[HT]

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