What Is Visual Cognition?

Visual perception is an important part of perception. Visual perception collects visual sensory information and organizes these sensory information into psychological sensory objects to understand the environment.

Perception experience involves four elements: distant objects, information media, proximity stimuli, and perceptual objects. Due to changes in the surrounding environment and physiological processes to overcome sensory adaptation, neighboring stimuli are constantly changing, so perception must solve the fundamental problem of constancy. ^[2]

As individuals move around in the environment, they constantly look around and orient themselves visually in three dimensions. When you look into the distance, you observe the third dimension of the depth.

One way to determine depth is through Monocular depth cues, including patterns

Impossible waterfall illustration

Physical gradient, relative size, interpolation, line perspective, air perspective, image plane positioning, and motion parallax. Another way to determine depth is to use binocular depth cues, using binocular aberrations and binocular convergence. As objects approach you, your eyes send increasingly different images to the brain, and the brain judges the distance between the object and you based on the differences in the images. In the convergence of the eyes, when the object approaches you, the eyeball will gradually turn inward, and the brain judges the distance between the object and you based on this muscle movement. ^[2]

Using monocular depth cues can draw some impossible graphics, such as the "impossible waterfall" map.