What are binocular allusions?

binocular allusions is a term usually applied to humans, but that could properly relate to any animal with binocular vision, it is any animal whose eyes are set to allow depths. These allusions are signals of the visual processing system that allow and create a sense of in -depth perception, mainly because of the way our sensory organs transmit information to the brain and how this information is interpreted. Without binocular stimuli, we would lose most of our perception of depth.

The most important of all binocular stimuli is binocular disparity, sometimes called binocular parallaxa. Binocular means having two sources of vision. Because people have two eyes, a slight difference in their position causes each eye to perceive what they see a little differently than the other eye. The human brain is able to combine signals from each eye into one perception of what we see. This difference in the position of our eyes and the resulting difference in how objects are with eachThe eye is known as binocular disparity and is interpreted by the brain in such a way as to allow us to perceive the shape and dimensions of objects.

The human vision system also uses other binocular allusions. Binocular convergence is a mechanism perceived by the relative proximity and distance. This allusion is derived from the fact that visual receptors in our eyes are mostly concentrated in one place near the center of the rear part of the eyeball. This means that to focus on the object, the eyes must point to the object. When the object approaches, the eyes must turn to a certain extent to concentrate on the object and have to turn away from each other as the object moves further. The brain is able to process information about the location of our eyes and interpret the relative distance, the key factor to the depth of the perception of objects that are relatively bonding us.

the third binocular allusion that is related to the previous two, is binocular accommodation. This allusion is derived from the nature of the human eye and the fact that to focus on the object of the small muscles controlling the eye, the lens or cornea to change the shape. The brain is able to feel it and use this information along with other binocular allusions to quantify movement, position and distance of multiple objects.