Question

An optical illusion that makes cinema possible; the eye and mind tend to hold images in the brain for a fraction of a second after they disappear from view.

Answer 1

Depth perception is the ability to perceive the world in three dimensions, achieved through depth cues provided by the visual system. 3-D movies and optical illusions take advantage of these cues to create the illusion of three dimensions. Depth perception is important for navigating and interacting with the world.

Step-by-step explanation:

Depth perception is the ability to perceive the world in three dimensions, even though the images on the retina are two-dimensional. It is achieved through the brain's interpretation of depth cues provided by the visual system. These cues include both monocular cues (based on one eye) and binocular cues (based on both eyes).

3-D movies and optical illusions take advantage of these depth cues to create the illusion of three dimensions. In 3-D movies, special glasses are used to present slightly different images to each eye, which the brain then combines to perceive depth. Optical illusions, on the other hand, often exploit monocular cues to trick the brain into perceiving different parts of the scene at different depths.

Overall, depth perception is an important aspect of visual perception that allows us to navigate and interact with the three-dimensional world around us.