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Ocular dominance, sometimes called eye preference or eyedness, [1] is the tendency to prefer visual input from one eye to the other. [2] It is somewhat analogous to the laterality of right- or left- handedness ; however, the side of the dominant eye and the dominant hand do not always match. [ 3 ]
A simulation of the ocular dominance column pattern, as might be seen if the surface of V1 were colored according to eye preference. A typical map of the relationship between ocular dominance, orientation, and cytochrome oxidase. Dark and light areas represent neurons that respond preferentially to the left and right eye.
The Australian magpie (Gymnorhina tibicen) uses both left-eye and right-eye laterality when performing anti-predator responses, which include mobbing. Prior to withdrawing from a potential predator, Australian magpies view the animal with the left eye (85%), but prior to approaching, the right eye is used (72%).
The concept of "right-brained" or "left-brained" individuals is considered a widespread myth which oversimplifies the true nature of the brain's cerebral hemispheres (for a recent counter position, though, see below). Proof leading to the "mythbuster" of the left-/right-brained concept is increasing as more and more studies are brought to light.
The right eye twitching may suggest that the individual is undergoing uncomfortable changes. Related: The Spiritual Meaning of Dreaming About Your Ex, According to a Dream Analyst.
Other phenomena of binocular vision include utrocular discrimination (the ability to tell which of two eyes has been stimulated by light), [6] eye dominance (the habit of using one eye when aiming something, even if both eyes are open), [7] allelotropia (the averaging of the visual direction of objects viewed by each eye when both eyes are open ...
This is referred to as contour dominance. Occasionally however, the blank field, or even the dark field of a closed eye, can become visible, making the image invisible for about as long as it would be invisible were it in rivalry with another image of equal stimulus strength. When an image is presented to one eye and a blank field to the other ...
If the brain never learns to see objects in detail, then there is a high chance of one eye becoming dominant. The result is that the brain will block the impulses of the non-dominant eye. In contrast, the child with myopia can see objects close to the eye in detail and does learn at an early age to see objects in detail. [medical citation needed]