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See Inside The Science of Perception

The Illusion of Love [Preview]

How do we fool thee? Let us count the ways that illusions play with our hearts and minds

ILLUSIONS THAT MOVE THE HEART
Your wandering eyes pull at your lover's heartstrings. In this illusion, the heart appears to move and even pulsate as you look around the image. When your eyes move, they shift the retinal images of the black-and-white edges in the pattern, activating the motion-sensitive neurons in your visual cortex. This neural activation leads to the perception of illusory motion. Notice that if you focus your gaze on a single point, the illusory motion slows or stops.

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