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The infant plays in the mid area of the surface of the table but avoids crawling near the edge of the surface of the table.

For instance, psychologists may assess the depth perception of an infant by putting the infant on a table. Likewise, while driving, we adjust the speed of our car according to our distance from other cars being driven on the same road.ĭepth perception is a natural ability that is present in people generally at all ages. Similarly, while walking, we sense out the distance of the ground and if we see a ditch on the ground, we may stop or change our direction because we sense depth (greater distance from the surface of the ground) of a ditch and thus it saves us from falling into the ditch. For instance, while walking on the beach, we may stop or change our direction when we sense that we reach the edge of the beach. Thus, it keeps us safe from many dangers. It is important because it helps us make an accurate judgement of the distance of things from us which helps us adjust our movement accordingly while walking or driving. These slightly different images are processed by the brain to form a three-dimensional image and to gauge the accurate distance of the object from the observer.īefore explaining the depth perception process in detail, let’s briefly understand why depth perception is important. When we see the external objects, each of our eyes makes a slightly different image of the object (e.g., in terms of viewing angle or relative size). It is our optical ability to perceive the world in three dimensions that enables us to determine the accurate distance of an object from us.