Illusion Category

Afterimage Illusions

Illusions caused by fatigued photoreceptors, where staring at an image and looking away produces a ghost image in inverted colors.

Afterimage

Negative Afterimage (Stare-and-Shift Illusion)

Stare at a saturated color for twenty seconds, shift your eyes to a blank surface, and a ghost image appears in the exact opposite color - a direct look at photoreceptor fatigue.