Ghost Illusions: The Science Behind Afterimages

The video explores the concept of ghost illusions, which are images that persist in one's vision even after the original image is no longer visible. These illusions are likened to seeing ghosts. The video provides examples, such as Yorick's skull, and explains the types of after images: positive, where colors remain the same, and negative, where colors are inverted. It also discusses the brain's role in maintaining visual continuity, ensuring the world doesn't go dark when we blink.

What are ghost illusions and how do they manifest in our vision?

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Describe the visual experiment involving Yorick's skull and its expected outcome.

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Explain the difference between positive and negative after images.

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What happens to the colors of an image when viewed for a long time, and how does this relate to after images?

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How does the brain maintain the perception of light when we blink?

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