Assignment: Visual Depth Perception

Assignment: Visual Depth Perception

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• all part most be answered.
• Describe visual depth perception and its role in human perception. If a person has problems with depth perception, explain how difficult it would be to do things such as drive or hit a baseball.
• Describe motion agnosia and its potential debilitating effects.  Describe some of the serious problems or difficulties that one might face when suffering from motion agnosia and how you might cope with such a condition?
• Describe the part of the brain responsible for perceiving motion. Explain what types of physiological studies have been conducted to determine which brain areas are involved in motion perception.

chapter covered 

• Perceiving color
• Perceiving depth and size
• Color Perception
• Depth Perception

Depth perception is the visual ability to perceive the world in three dimensions (3D) and the distance of an object. Depth sensation is the corresponding term for animals, since although it is known that animals can sense the distance of an object (because of their ability to move accurately, or to respond consistently, according to that distance), it is not known whether they “perceive” it in the same subjective way that humans do.^[1]

Depth perception arises from a variety of depth cues. These are typically classified into binocular cues that are based on the receipt of sensory information in three dimensions from both eyes and monocular cues that can be represented in just two dimensions and observed with just one eye.^[2][3] Binocular cues include stereopsis, eye convergence, disparity, and yielding depth from binocular vision through exploitation of parallax. Monocular cues include size: distant objects subtend smaller visual angles than near objects, grain, size, and motion parallax