Psych 101 100.003
The psychology concepts that I will be talking about are binocular and monocular cues. These cues are what help us judge distances. Binocular cues are simply the information taken in by both eyes. Convergence and retinal (binocular) disparity are the two binocular cues we use to process visual information. Convergence states that our eyes move together to focus on an object that is close and that they would move farther apart for a distant object. A simple example of this would be holding your finger in front of your nose and moving it toward and away from your face. Retinal disparity states that because we have two eyes there are literally two images combing to form one, giving us our depth perception. If you were to cover one eye, you may find trouble catching an object tossed in your direction or even grasping objects close by. Knowing what a binocular cue is, it is evident that monocular cues are those where only one eye is involved. One of the most common six is called relative size. It states that when two objects are similar in size, we’ll perceive whichever casts a smaller retinal image as farther away. Interposition states that when one object is blocking another, the blocking object is closer. Arial perspective is based off of light passing through that atmosphere. If an object is further away it will appear hazy as opposed to the clarity of a closer object. Linear perspective is a cue used within art showing how parallel lines that converge show distance and depth. Texture gradient, also used in art, is a cue stating that we see less details of an object when it is further away. Although animals use it more than humans, we have the motion parallax. It states that closer objects appear to move faster rather than objects that are farther away. These are all ways that we perceive everyday life without even realizing it. They are what help us function in everything that we do from the simplest to the most complex of activities.