Answer the following question in 3-4 complete sentences. Explain what you see in the image on the left, verses the image on the right. What a person sees when looking at the above two pictures depends on what concept?

Answer:

In the left image, the black area appears to be a vase, while the white space forms two people looking at each other. In the right image, the colors are reversed, so the black space appears to show the two faces and the white space becomes the vase. This shows that perception depends on the figure-ground relationship, because the mind decides which shape is the main figure and which is the background. It is an example of a reversible figure-ground illusion.